f59268ac976b85521c5e2279d14f57a8d6b3926d710b1853963db0cbd6c4d3c2

Analysis

max time kernel
95s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29-08-2024 13:02

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General

Target

Uninstall.exe
Size

57KB
MD5

8d67546632276e864ed86f26919d8e0e
SHA1

77ba03a00c7229618ef86fde09e83125a67f7578
SHA256

4dc37f2bb5ad34df5da0aa71d7938ce3638ef63e278ea117115371acc1fa7614
SHA512

3168b58ff1d10a79f64983889e6401fc7611161f1b79f22d77b81a8b8bce8f473169389daf323f00367147b88a8c9901bfeaf022f3527f9c759673743a20cde9
SSDEEP

1536:o02Wf0K2CImbrBwiALljslcUgdLeAyNxdxVpl2LCOKm:o030XCIscLlj+cUceAY/wrKm

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3568	Un_A.exe

Loads dropped DLL 1 IoCs

pid	Process
3568	Un_A.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Un_A.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Uninstall.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral10/files/0x000800000002341f-3.dat	nsis_installer_1
behavioral10/files/0x000800000002341f-3.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1260 wrote to memory of 3568	1260	Uninstall.exe	84
PID 1260 wrote to memory of 3568	1260	Uninstall.exe	84
PID 1260 wrote to memory of 3568	1260	Uninstall.exe	84

C:\Users\Admin\AppData\Local\Temp\Uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\Uninstall.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1260
- 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\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:3568

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsa6013.tmp\LangDLL.dll

Filesize
5KB

MD5
ea60c7bd5edd6048601729bd31362c16

SHA1
6e6919d969eb61a141595014395b6c3f44139073

SHA256
4e72c8b4d36f128b25281440e59e39af7ec2080d02e024f35ac413d769d91f39

SHA512
f9dc35220697153bb06e3a06caf645079881cb75aed008dbe5381ecaf3442d5be03500b36bbca8b3d114845fac3d667ddf4063c16bc35d29bbea862930939993

Download Submit
C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe

Filesize
57KB

MD5
8d67546632276e864ed86f26919d8e0e

SHA1
77ba03a00c7229618ef86fde09e83125a67f7578

SHA256
4dc37f2bb5ad34df5da0aa71d7938ce3638ef63e278ea117115371acc1fa7614

SHA512
3168b58ff1d10a79f64983889e6401fc7611161f1b79f22d77b81a8b8bce8f473169389daf323f00367147b88a8c9901bfeaf022f3527f9c759673743a20cde9

Download Submit