Managed XDR

reporte-financeiro.xlsm (Cobalt Strike) — malware analysis report

File info

Filename
reporte-financeiro.xlsm
File type
Microsoft Excel 2007+
File size
746.9 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
b61863f97f1dea5126934e4f7a068777f6591c98
SHA256
432557a5f88577dc0043c1aa1a28ce07ce3f566083eada337648293b0cff5ce6
MD5
6b9be29eb7a31fb3e24cae3bcc5ba752

Malwares

  • Cobalt Strike

Signatures

Execution

T1203 office_write_exe: Office document dropped an executable file
T1203 office_exploit_crash: Microsoft Office process crashes (failed exploitation of a vulnerability is possible)
T1064 office_macros: The document contains macroses (total: 6)
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)

Persistence

T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1574 dropper_dll: Creates DLL, which is then loaded into the process
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

T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1064 office_macros: The document contains macroses (total: 6)
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
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Credential Access

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

Discovery

T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1083 checks_recent_files: Attempt to check recently opened files through registry

Other

yara_rules: Static rules
unexpected_exception: Unexpected exception
no_graphical_activity: No graphic activity
message_box: Displays a message
error_drawtext: An error occured while executing the file
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

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