2b37bf1dc164f41a81bb522294072e62eb14c07968e8ee4643f97e3916d3092a

Analysis

max time kernel
123s
max time network
134s
platform
windows10-1703_x64
resource
win10-20231215-en
resource tags

arch:x64arch:x86image:win10-20231215-enlocale:en-usos:windows10-1703-x64system
submitted
12/02/2024, 15:00

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General

Target

$R0/Uninstall Garrys Mod.exe
Size

152KB
MD5

765038a9aa337b5f75ce45ca8c9a3aa1
SHA1

6027d80fd5022747b339a84e319ad794b9cb8337
SHA256

15e76f75097bc77ff7d0b89c750294623025badb4b6a1c879c51bd3a87886348
SHA512

5a4e7df3190b6fee53797c514760ed1b61a73071bd30136a3b811cb95ce7ca8bc27e8ad68a9421a0cff36aa273648fb7d29daf9e1d265e1db444dc67be1335ec
SSDEEP

3072:Gn77v00hEoDEtauzJ21fAKXH4Te7EjqZ/S1vXKmaH2tvhOEA1RJCir86SrSrv6IU:G740IF2lVHAQEj4K1v6ms2t0EyL+yaT

Score

7^/10

Malware Config

Signatures

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1968775928-2924269989-3510977013-1000\Control Panel\International\Geo\Nation	Un_A.exe

Executes dropped EXE 1 IoCs

pid	Process
4612	Un_A.exe

Loads dropped DLL 5 IoCs

pid	Process
4612	Un_A.exe
4612	Un_A.exe
4612	Un_A.exe
4612	Un_A.exe
4612	Un_A.exe

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

System Information Discovery
T1082

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
5112	tasklist.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4612	Un_A.exe
4612	Un_A.exe
5112	tasklist.exe
5112	tasklist.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5112	tasklist.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 4612	2372	Uninstall Garrys Mod.exe	71
PID 2372 wrote to memory of 4612	2372	Uninstall Garrys Mod.exe	71
PID 2372 wrote to memory of 4612	2372	Uninstall Garrys Mod.exe	71
PID 4612 wrote to memory of 5064	4612	Un_A.exe	72
PID 4612 wrote to memory of 5064	4612	Un_A.exe	72
PID 4612 wrote to memory of 5064	4612	Un_A.exe	72
PID 5064 wrote to memory of 5112	5064	cmd.exe	74
PID 5064 wrote to memory of 5112	5064	cmd.exe	74
PID 5064 wrote to memory of 5112	5064	cmd.exe	74
PID 5064 wrote to memory of 2164	5064	cmd.exe	75
PID 5064 wrote to memory of 2164	5064	cmd.exe	75
PID 5064 wrote to memory of 2164	5064	cmd.exe	75

C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall Garrys Mod.exe
"C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall Garrys Mod.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\$R0\
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4612
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c tasklist /FI "USERNAME eq %USERNAME%" /FI "IMAGENAME eq Garrys Mod.exe" | %SYSTEMROOT%\System32\find.exe "Garrys Mod.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:5064
  - - C:\Windows\SysWOW64\tasklist.exe
      tasklist /FI "USERNAME eq Admin" /FI "IMAGENAME eq Garrys Mod.exe"
      4⤵
      Enumerates processes with tasklist
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:5112
  - - C:\Windows\SysWOW64\find.exe
      C:\Windows\System32\find.exe "Garrys Mod.exe"
      4⤵
      PID:2164

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Process Discovery

T1057

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\AppData\Local\Temp\~nsuA.tmp\Un_A.exe

Filesize
152KB

MD5
765038a9aa337b5f75ce45ca8c9a3aa1

SHA1
6027d80fd5022747b339a84e319ad794b9cb8337

SHA256
15e76f75097bc77ff7d0b89c750294623025badb4b6a1c879c51bd3a87886348

SHA512
5a4e7df3190b6fee53797c514760ed1b61a73071bd30136a3b811cb95ce7ca8bc27e8ad68a9421a0cff36aa273648fb7d29daf9e1d265e1db444dc67be1335ec

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\Users\Admin\AppData\Local\Temp\nsr977E.tmp\StdUtils.dll

Filesize
100KB

MD5
c6a6e03f77c313b267498515488c5740

SHA1
3d49fc2784b9450962ed6b82b46e9c3c957d7c15

SHA256
b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e

SHA512
9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803

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\Users\Admin\AppData\Local\Temp\nsr977E.tmp\System.dll

Filesize
12KB

MD5
0d7ad4f45dc6f5aa87f606d0331c6901

SHA1
48df0911f0484cbe2a8cdd5362140b63c41ee457

SHA256
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

SHA512
c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

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\Users\Admin\AppData\Local\Temp\nsr977E.tmp\WinShell.dll

Filesize
3KB

MD5
1cc7c37b7e0c8cd8bf04b6cc283e1e56

SHA1
0b9519763be6625bd5abce175dcc59c96d100d4c

SHA256
9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6

SHA512
7acf7f8e68aa6066b59ca9f2ae2e67997e6b347bc08eb788d2a119b3295c844b5b9606757168e8d2fbd61c2cda367bf80e9e48c9a52c28d5a7a00464bfd2048f

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\Users\Admin\AppData\Local\Temp\nsr977E.tmp\nsExec.dll

Filesize
6KB

MD5
ec0504e6b8a11d5aad43b296beeb84b2

SHA1
91b5ce085130c8c7194d66b2439ec9e1c206497c

SHA256
5d9ceb1ce5f35aea5f9e5a0c0edeeec04dfefe0c77890c80c70e98209b58b962

SHA512
3f918f1b47e8a919cbe51eb17dc30acc8cfc18e743a1bae5b787d0db7d26038dc1210be98bf5ba3be8d6ed896dbbd7ac3d13e66454a98b2a38c7e69dad30bb57

Download Submit