96e0f2a803195e87752de63e91566dfe74b565d80e3c36efd90d85ec1b3be632

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
23/05/2024, 20:33

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General

Target

uninstall.exe
Size

87KB
MD5

33a31007ff9cb4f4a2fef2e22b33ca5e
SHA1

1be6277e76984da795471a7dc5e173a767720025
SHA256

7ab2d70344ebd729c369e366ce5011ee906bfae9b648a0528eb66764da256aa1
SHA512

c9dfab5bd3ca5204c28270861da695975b72df46a805f4fb9068b55f032978e253921bf407840834e3ed47443eaebcf336b1d42bbf840b224013af62d8b1e485
SSDEEP

1536:WoM1dKyOSoYNXoK3LX78JBXJkUFh8gdLeAyN21tRrWsVqQTNAO51WVdh1NW6sM:HM1BjoYNXoKDIJBXJPIceAXMQTNAO7M/

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2224	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
2204	uninstall.exe
2224	Au_.exe

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

System Information Discovery
T1082

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral11/files/0x00380000000141b7-5.dat	nsis_installer_1
behavioral11/files/0x00380000000141b7-5.dat	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2224	Au_.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 2224	2204	uninstall.exe	28
PID 2204 wrote to memory of 2224	2204	uninstall.exe	28
PID 2204 wrote to memory of 2224	2204	uninstall.exe	28
PID 2204 wrote to memory of 2224	2204	uninstall.exe	28

C:\Users\Admin\AppData\Local\Temp\uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\uninstall.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2224

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\~nsu.tmp\Au_.exe

Filesize
87KB

MD5
33a31007ff9cb4f4a2fef2e22b33ca5e

SHA1
1be6277e76984da795471a7dc5e173a767720025

SHA256
7ab2d70344ebd729c369e366ce5011ee906bfae9b648a0528eb66764da256aa1

SHA512
c9dfab5bd3ca5204c28270861da695975b72df46a805f4fb9068b55f032978e253921bf407840834e3ed47443eaebcf336b1d42bbf840b224013af62d8b1e485

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\Users\Admin\AppData\Local\Temp\nsy1A07.tmp\LangDLL.dll

Filesize
5KB

MD5
6affaef1473695eb1325129879b5d12e

SHA1
626f362d322bd12543d1255678c70b577b0e916e

SHA256
df361cd0f1b68f3cfb0aa97a04a6d28eaf2ed4713e9717dbc86b25d46ddb0634

SHA512
f1d5a4c51e0bd2a644939df3722024d646f9bfc679b04964fc638f00e5191b8c02872f5a298c16f59a59a234d3cf6f929c98daec4d03c757e68ea8ee99580f6c

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