Managed XDR

c-users-user-desktop-caa80000 (SquirrelWaffle) — malware analysis report

File info

Filename
c-users-user-desktop-caa80000
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 10.0, Code page: -535, Last Saved By: george, Name of Creating Application: Microsoft Excel, Create Time/Date: Fri Jun 5 18:19:34 2015, Last Saved Time/Date: Thu Dec 5 11:46:54 2024, Security: 0
File size
247.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
f1c88bd1a798f6bfd6aeb7010058f14baf76e1af
SHA256
bcb2ceb7b403a17532c1125e32dd07510c29075849f4fe973120ea0b51fe8854
MD5
533b0b3218acfc66bf86bd7598e3f6b1

Malwares

  • SquirrelWaffle

Signatures

Execution

T1064 office_macros_hidden: Document contains suspicious Excel 4.0 macro
T1559 suspicious_process: Spawns a suspicious process
T1203 office_runs_dll: Suspicious document behaviour (tries to execute dll file)
T1203 office_exploit_http: The document exhibits suspicious behaviour (performs HTTP requests)
T1064 office_macros_suspicious: Document contains suspicious macro
T1064 office_macros: The document contains macroses (total: 3)
T1064 office_macros_autoexec: The document contains an auto-start macro
T1204.002 office_vb_load: Microsoft Office is loading VB DLL files (macros usage indicator)

Privilege Escalation

T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Defense Evasion

T1064 office_macros_hidden: Document contains suspicious Excel 4.0 macro
T1064 office_macros_suspicious: Document contains suspicious macro
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity
T1064 office_macros: The document contains macroses (total: 3)
T1064 office_macros_autoexec: The document contains an auto-start macro
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Credential Access

T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files

Discovery

T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity
T1082 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining

Command and Control

T1071.001 office_exploit_http: The document exhibits suspicious behaviour (performs HTTP requests)
T1071.004 office_exploit_dns: The document exhibits suspicious behaviour (performs DNS requests)
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Other

yara_rules: Static rules
suricata_alert: Malicious traffic detected
dns_without_resolve: DNS query without a response
office_summary: The document contains suspicious metadata
create_rpc_bindings: Creates RPC connection
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
antisandbox_check_graphics_card: Uses CreateDXGIFactory, potentially to detect graphics card
checktokenmembership: Checks user token with CheckTokenMembership call

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