Managed XDR

26-e5-8f-b7-e9-99-84-e4-bb-b6.xls (ZLoader) — malware analysis report

File info

Filename
26-e5-8f-b7-e9-99-84-e4-bb-b6.xls
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 5.1, Code page: 936, Last Saved By: VNN.R9, Last Printed: Thu Sep 20 06:27:49 2012, Create Time/Date: Wed Sep 19 01:37:16 2012, Last Saved Time/Date: Thu Sep 20 06:28:12 2012, Security: 0
File size
113.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
9587426039d57d1a4edaad36ff73aeea68b70782
SHA256
c961b9f3f381ea9ae9b14aac1d7c2b75b1f8dc26ff5e158303b22c585e6289af
MD5
c2ae5b6de8f6345d04d3a357381197dd

Malwares

  • ZLoader

Signatures

Execution

T1064 office_macros_hidden: Document contains suspicious Excel 4.0 macro
T1203 office_exploit_creates_cmd: The document exhibits suspicious behaviour (creates a cmd.exe process)
T1064 office_macros_suspicious: Document contains suspicious macro
T1204.002 office_wmi_load: Microsoft Office loads WMI DLL files (WMI usage indicator in macros)
T1204.002 office_vb_load: Microsoft Office is loading VB DLL files (macros usage indicator)
T1064 office_macros: The document contains macroses (total: 5)
T1064 office_macros_strings: Feature lines found in document macro
T1064 office_macros_autoexec: The document contains an auto-start macro

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
T1562.001 office_security: Attempts to modify Microsoft Office security settings
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1064 office_macros: The document contains macroses (total: 5)
T1064 office_macros_strings: Feature lines found in document macro
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

Discovery

T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1082 reads_csrss: Attempts to read csrss.exe memory
T1082 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining

Other

yara_rules: Static rules
creates_doc: Creates (office) documents in the file system
office_summary: The document contains suspicious metadata
break_limit_exceeded: Warning: function calls limit has been exceeded
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

Related reports

Managed XDR