6f67637e29f8c046d7a6547edab6149247e74e53298086bf013d3d6332b1d095

Analysis

max time kernel
121s
max time network
138s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
01/09/2024, 01:50

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General

Target

Uninstall.exe
Size

101KB
MD5

eb4a8ff84d5eff912d966941a6e13c7b
SHA1

412ac412c76f318147f767aac14b6594345041a3
SHA256

3bf688736939f0722a0da978969322cdb2040ae1c339ded2a020c836736b1376
SHA512

16234549484584265ce290bc5c43c971bfe02f7cfa36d0c3e05044ebe29b7015f9bb70f3cf731abc2b930510eb8cff4ce7720442eee8878bc616ada5a532713b
SSDEEP

1536:x02Wf0K2CImbrBwiALljslcpgdLeAyN/VbbUAwSVDi0cvMT4+YWTlMCAIz4e:x030XCIscLlj+cpceAUn1vTmCpce

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2308	Un_A.exe

Loads dropped DLL 3 IoCs

pid	Process
3060	Uninstall.exe
2308	Un_A.exe
2308	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	Uninstall.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Un_A.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral9/files/0x000400000001e269-2.dat	nsis_installer_1
behavioral9/files/0x000400000001e269-2.dat	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2308	Un_A.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 2308	3060	Uninstall.exe	30
PID 3060 wrote to memory of 2308	3060	Uninstall.exe	30
PID 3060 wrote to memory of 2308	3060	Uninstall.exe	30
PID 3060 wrote to memory of 2308	3060	Uninstall.exe	30

C:\Users\Admin\AppData\Local\Temp\Uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\Uninstall.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3060
- 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
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2308

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

\Users\Admin\AppData\Local\Temp\nsoE32F.tmp\UserInfo.dll

Filesize
4KB

MD5
c051c86f6fa84ac87efb0cf3961950a1

SHA1
f18f4bb803099b80a3a013ecb03fea11cff0ac01

SHA256
d0949b4c0640ee6a80db5a7f6d93fc631ed194de197d79bf080ec1752c6f1166

SHA512
6e9de5d07aaed2ac297faa5049d567884d817ed94dece055d96913ac8e497ade6f0ff5c28bae7cc7d3ac41f8795efb9939e6d12061a3c446d5d2a3e2287d49d2

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

Filesize
101KB

MD5
eb4a8ff84d5eff912d966941a6e13c7b

SHA1
412ac412c76f318147f767aac14b6594345041a3

SHA256
3bf688736939f0722a0da978969322cdb2040ae1c339ded2a020c836736b1376

SHA512
16234549484584265ce290bc5c43c971bfe02f7cfa36d0c3e05044ebe29b7015f9bb70f3cf731abc2b930510eb8cff4ce7720442eee8878bc616ada5a532713b

Download Submit