3deb741f236280b2ffd3811cfbc274fc2244f1d69ed098bfeb07c712ced61139

Analysis

max time kernel
153s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
27-11-2022 16:16

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General

Target

3deb741f236280b2ffd3811cfbc274fc2244f1d69ed098bfeb07c712ced61139.exe
Size

208KB
MD5

f43b5f37a9b66c9fed898574e5b1c8e2
SHA1

219d594d0918e84552857580228ceba4c35c9876
SHA256

3deb741f236280b2ffd3811cfbc274fc2244f1d69ed098bfeb07c712ced61139
SHA512

34a26366f9bc91da30b66eb5605928b87d7d0ba12844c684d300e1077b98a85c0868f0ead1e4f79d06cbf6e5affee7e03a8c9324e75bb77631417775f0e0530e
SSDEEP

3072:bkc0r3vl7j1/1zZL0DkeGHbr07zjXwf7wxRCLU0m9LhF:bM75/1zZL6aZm13

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

system.exe

pid process

4420 system.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

4872 netsh.exe

pid	process
4872	netsh.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:

3deb741f236280b2ffd3811cfbc274fc2244f1d69ed098bfeb07c712ced61139.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	3deb741f236280b2ffd3811cfbc274fc2244f1d69ed098bfeb07c712ced61139.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

system.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\12ce4e06a81e8d54fd01d9b762f1b1bb = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\12ce4e06a81e8d54fd01d9b762f1b1bb = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .."	system.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 39 IoCs

Processes:

system.exe

pid	process
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe
4420	system.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

system.exe

description pid process

Token: SeDebugPrivilege 4420 system.exe

description	pid	process
Token: SeDebugPrivilege	4420	system.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

3deb741f236280b2ffd3811cfbc274fc2244f1d69ed098bfeb07c712ced61139.exesystem.exe

description	pid	process	target process
PID 4512 wrote to memory of 4420	4512	3deb741f236280b2ffd3811cfbc274fc2244f1d69ed098bfeb07c712ced61139.exe	system.exe
PID 4512 wrote to memory of 4420	4512	3deb741f236280b2ffd3811cfbc274fc2244f1d69ed098bfeb07c712ced61139.exe	system.exe
PID 4420 wrote to memory of 4872	4420	system.exe	netsh.exe
PID 4420 wrote to memory of 4872	4420	system.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\3deb741f236280b2ffd3811cfbc274fc2244f1d69ed098bfeb07c712ced61139.exe
"C:\Users\Admin\AppData\Local\Temp\3deb741f236280b2ffd3811cfbc274fc2244f1d69ed098bfeb07c712ced61139.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4512

C:\Users\Admin\AppData\Local\Temp\system.exe
"C:\Users\Admin\AppData\Local\Temp\system.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4420

C:\Windows\SYSTEM32\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\system.exe" "system.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:4872

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\system.exe
Filesize
208KB

MD5
f43b5f37a9b66c9fed898574e5b1c8e2

SHA1
219d594d0918e84552857580228ceba4c35c9876

SHA256
3deb741f236280b2ffd3811cfbc274fc2244f1d69ed098bfeb07c712ced61139

SHA512
34a26366f9bc91da30b66eb5605928b87d7d0ba12844c684d300e1077b98a85c0868f0ead1e4f79d06cbf6e5affee7e03a8c9324e75bb77631417775f0e0530e

Download Submit
C:\Users\Admin\AppData\Local\Temp\system.exe
Filesize
208KB

MD5
f43b5f37a9b66c9fed898574e5b1c8e2

SHA1
219d594d0918e84552857580228ceba4c35c9876

SHA256
3deb741f236280b2ffd3811cfbc274fc2244f1d69ed098bfeb07c712ced61139

SHA512
34a26366f9bc91da30b66eb5605928b87d7d0ba12844c684d300e1077b98a85c0868f0ead1e4f79d06cbf6e5affee7e03a8c9324e75bb77631417775f0e0530e

Download Submit
memory/4420-133-0x0000000000000000-mapping.dmp

Download
memory/4420-136-0x00007FFAB7B40000-0x00007FFAB8576000-memory.dmp

Filesize
10.2MB

Download
memory/4512-132-0x00007FFAB7B40000-0x00007FFAB8576000-memory.dmp

Filesize
10.2MB

Download
memory/4872-137-0x0000000000000000-mapping.dmp

Download