1296ca015baa3dfae62d8cd6f6c1c1513fb919201a6c11f3df1474700d57fb26

General

Target

Bill_PYWTF0.xlsb
Size

264KB
MD5

29be144375ee1609c2c1fd63ae2ff514
SHA1

f37a8d5da9424bd916ed1c572b15173b5f430dd2
SHA256

1296ca015baa3dfae62d8cd6f6c1c1513fb919201a6c11f3df1474700d57fb26
SHA512

7873fffbc179dc3e8b415b72c2c3b736c7f4164e1a8a33c6d38cae5902466059f2fe50adf9ff0f2bba8411d373ceca02a950df9fd263624ab03014cf9879d752

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 2 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

wmic.exemshta.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4804	3704	wmic.exe	EXCEL.EXE
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4720	4672	mshta.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

3704 EXCEL.EXE

Suspicious use of AdjustPrivilegeToken 42 IoCs

Processes:

wmic.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	4804	wmic.exe
Token: SeSecurityPrivilege	4804	wmic.exe
Token: SeTakeOwnershipPrivilege	4804	wmic.exe
Token: SeLoadDriverPrivilege	4804	wmic.exe
Token: SeSystemProfilePrivilege	4804	wmic.exe
Token: SeSystemtimePrivilege	4804	wmic.exe
Token: SeProfSingleProcessPrivilege	4804	wmic.exe
Token: SeIncBasePriorityPrivilege	4804	wmic.exe
Token: SeCreatePagefilePrivilege	4804	wmic.exe
Token: SeBackupPrivilege	4804	wmic.exe
Token: SeRestorePrivilege	4804	wmic.exe
Token: SeShutdownPrivilege	4804	wmic.exe
Token: SeDebugPrivilege	4804	wmic.exe
Token: SeSystemEnvironmentPrivilege	4804	wmic.exe
Token: SeRemoteShutdownPrivilege	4804	wmic.exe
Token: SeUndockPrivilege	4804	wmic.exe
Token: SeManageVolumePrivilege	4804	wmic.exe
Token: 33	4804	wmic.exe
Token: 34	4804	wmic.exe
Token: 35	4804	wmic.exe
Token: 36	4804	wmic.exe
Token: SeIncreaseQuotaPrivilege	4804	wmic.exe
Token: SeSecurityPrivilege	4804	wmic.exe
Token: SeTakeOwnershipPrivilege	4804	wmic.exe
Token: SeLoadDriverPrivilege	4804	wmic.exe
Token: SeSystemProfilePrivilege	4804	wmic.exe
Token: SeSystemtimePrivilege	4804	wmic.exe
Token: SeProfSingleProcessPrivilege	4804	wmic.exe
Token: SeIncBasePriorityPrivilege	4804	wmic.exe
Token: SeCreatePagefilePrivilege	4804	wmic.exe
Token: SeBackupPrivilege	4804	wmic.exe
Token: SeRestorePrivilege	4804	wmic.exe
Token: SeShutdownPrivilege	4804	wmic.exe
Token: SeDebugPrivilege	4804	wmic.exe
Token: SeSystemEnvironmentPrivilege	4804	wmic.exe
Token: SeRemoteShutdownPrivilege	4804	wmic.exe
Token: SeUndockPrivilege	4804	wmic.exe
Token: SeManageVolumePrivilege	4804	wmic.exe
Token: 33	4804	wmic.exe
Token: 34	4804	wmic.exe
Token: 35	4804	wmic.exe
Token: 36	4804	wmic.exe

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
3704	EXCEL.EXE
3704	EXCEL.EXE
3704	EXCEL.EXE
3704	EXCEL.EXE
3704	EXCEL.EXE
3704	EXCEL.EXE
3704	EXCEL.EXE
3704	EXCEL.EXE
3704	EXCEL.EXE
3704	EXCEL.EXE
3704	EXCEL.EXE
3704	EXCEL.EXE
3704	EXCEL.EXE
3704	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description pid process target process

PID 3704 wrote to memory of 4804 3704 EXCEL.EXE wmic.exe
PID 3704 wrote to memory of 4804 3704 EXCEL.EXE wmic.exe

description	pid	process	target process
PID 3704 wrote to memory of 4804	3704	EXCEL.EXE	wmic.exe
PID 3704 wrote to memory of 4804	3704	EXCEL.EXE	wmic.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Bill_PYWTF0.xlsb"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3704

C:\Windows\System32\Wbem\wmic.exe
wmic process call create 'mshta C:\ProgramData\bBWcALuQkHhzqq.rtf'
2⤵
- Process spawned unexpected child process
- Suspicious use of AdjustPrivilegeToken
PID:4804

C:\Windows\system32\mshta.exe
mshta C:\ProgramData\bBWcALuQkHhzqq.rtf
1⤵
- Process spawned unexpected child process
PID:4720

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\ProgramData\bBWcALuQkHhzqq.rtf
MD5
8cd8e6098e25876466df2c174aa27a36

SHA1
c9a4cc1f8c2b898b75f2581d72d9b8d05c335baf

SHA256
a01e6ca4a97e6a9e8b1ad4105ea314fd6b99033b9234a16daf0fe89a8cc33218

SHA512
dd22ff7df782568f1b8ca6b287f29e3741bbd812408ad6f61b87bae50e92ab10f67db6593e3ddc516cac4c50937dfaceee40cd53b4a0a079290543461bf36565

Download Submit
memory/3704-115-0x00007FFBD6230000-0x00007FFBD6240000-memory.dmp

Filesize
64KB

Download
memory/3704-116-0x00007FFBD6230000-0x00007FFBD6240000-memory.dmp

Filesize
64KB

Download
memory/3704-117-0x00007FFBD6230000-0x00007FFBD6240000-memory.dmp

Filesize
64KB

Download
memory/3704-118-0x00007FFBD6230000-0x00007FFBD6240000-memory.dmp

Filesize
64KB

Download
memory/3704-120-0x000001D699490000-0x000001D699492000-memory.dmp

Filesize
8KB

Download
memory/3704-119-0x000001D699490000-0x000001D699492000-memory.dmp

Filesize
8KB

Download
memory/3704-121-0x00007FFBD6230000-0x00007FFBD6240000-memory.dmp

Filesize
64KB

Download
memory/3704-122-0x000001D699490000-0x000001D699492000-memory.dmp

Filesize
8KB

Download
memory/3704-128-0x00007FFBD3420000-0x00007FFBD3430000-memory.dmp

Filesize
64KB

Download
memory/3704-129-0x00007FFBD3420000-0x00007FFBD3430000-memory.dmp

Filesize
64KB

Download
memory/4804-274-0x0000000000000000-mapping.dmp

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads