a2d3d6430f6775951cf988d960cfae4093d7a1e4d0f684ddfffaf4599ace9a71

Resubmissions

11-11-2024 03:14

241111-dreswavmgp 10

Analysis

max time kernel
94s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-11-2024 03:14

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General

Target

$1/1337/Clipper.exe
Size

18KB
MD5

c7e43ab36c3da3371fc915de9dc5106f
SHA1

f1bb12ae485853c1a28a8306604ef3eb3939068d
SHA256

4ff04b9be72efe982594832d51681c08334f4d8512c3560c646c21f88fd5e532
SHA512

383a02a7a338ca66077f5d577ae7f63f95cf1b711f1338e9dd11867a62d6dc298e0fd01878adc273669f5f1e8cffb0aa4ea3efa75ffb870616a0d3fef3cb454e
SSDEEP

384:Dk3mLUtUURltJYbiXDnRXts39Rizw+8n7syMN1gCZhNZDJRWs:Q3mGlvpRXts39Mw+8n7syMN1gCZhNZT

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

Clipper.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, C:\\Users\\Admin\\WinService.exe"	Clipper.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, C:\\Users\\Admin\\WinService.exe"	Clipper.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:

Clipper.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	Clipper.exe

Executes dropped EXE 2 IoCs

Processes:

WinService.exeWinService.exe

pid process

4480 WinService.exe
1828 WinService.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exe

pid process

4884 schtasks.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Clipper.exeWinService.exeWinService.exe

description pid process

Token: SeDebugPrivilege 4972 Clipper.exe
Token: SeDebugPrivilege 4480 WinService.exe
Token: SeDebugPrivilege 1828 WinService.exe

pid	process
4480	WinService.exe
1828	WinService.exe

pid	process
4884	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	4972	Clipper.exe
Token: SeDebugPrivilege	4480	WinService.exe
Token: SeDebugPrivilege	1828	WinService.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

Clipper.exe

description	pid	process	target process
PID 4972 wrote to memory of 4884	4972	Clipper.exe	schtasks.exe
PID 4972 wrote to memory of 4884	4972	Clipper.exe	schtasks.exe
PID 4972 wrote to memory of 4480	4972	Clipper.exe	WinService.exe
PID 4972 wrote to memory of 4480	4972	Clipper.exe	WinService.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\$1\1337\Clipper.exe
"C:\Users\Admin\AppData\Local\Temp\$1\1337\Clipper.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4972
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 1 /tn "Windows Service" /tr "C:\Users\Admin\WinService.exe" /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4884
- C:\Users\Admin\WinService.exe
  "C:\Users\Admin\WinService.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:4480

C:\Users\Admin\WinService.exe
C:\Users\Admin\WinService.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1828

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\WinService.exe

Filesize
18KB

MD5
c7e43ab36c3da3371fc915de9dc5106f

SHA1
f1bb12ae485853c1a28a8306604ef3eb3939068d

SHA256
4ff04b9be72efe982594832d51681c08334f4d8512c3560c646c21f88fd5e532

SHA512
383a02a7a338ca66077f5d577ae7f63f95cf1b711f1338e9dd11867a62d6dc298e0fd01878adc273669f5f1e8cffb0aa4ea3efa75ffb870616a0d3fef3cb454e

Download Submit
memory/4480-33-0x00007FFEEE0C0000-0x00007FFEEEB81000-memory.dmp

Filesize
10.8MB

Download
memory/4480-34-0x00007FFEEE0C0000-0x00007FFEEEB81000-memory.dmp

Filesize
10.8MB

Download
memory/4972-0-0x00007FFEEE0C3000-0x00007FFEEE0C5000-memory.dmp

Filesize
8KB

Download
memory/4972-1-0x00000000002D0000-0x00000000002DA000-memory.dmp

Filesize
40KB

Download