7981c067ad5f8c4880fff55719b09c0c8511ab4d41205de662ad017f02ff8bba

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05/03/2024, 04:04

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General

Target
Uninstall.exe
Size 51KB
Sample240305-em1p8aef84
SHA256 4ebdc9cf0c1addadf0070c64424d1792a90006dfa762b6459ddcae813e0c0825
MD5 e98c4556ea75dbfccb0f7ec340ca3548
SHA1 d41ffd10b8c5279c0e6273576f8a5855360f0087
SHA512 8e1c660a9da7c674fbc865b4c7667f3e7c97bf99aff6ca91ba8740f136cfc3c1bd6a3dc1c02432ccb55bb361bb36b62cb985ae7c543bb6c008cebaa9dce215eb
SSDEEP 1536:wLXB65939tY6HBg4sXJJlitGl1VhurNmvOq0A:wLk395hYXJ7PTu5I7
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2824	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
1640	Uninstall.exe
2824	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
behavioral17/files/0x000c0000000167ef-2.dat	nsis_installer_1
behavioral17/files/0x000c0000000167ef-2.dat	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2824	Au_.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1640 wrote to memory of 2824	1640	Uninstall.exe	28
PID 1640 wrote to memory of 2824	1640	Uninstall.exe	28
PID 1640 wrote to memory of 2824	1640	Uninstall.exe	28
PID 1640 wrote to memory of 2824	1640	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:1640
- 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:2824

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

UAC.dll

Path \Users\Admin\AppData\Local\Temp\nsd2212.tmp\UAC.dll
Size 13KB
SHA256 3a18cf504265ab2267e1545106217767877fa9db6e2b5dd0a3a761dead33a99b
MD5 07841403d5371183c4eaa5cab50663fb
SHA1 b0cee6e01502fdd2ee775922051333d626c63906
SHA512 436c1932d4ff56a11673beac5416ac0f2c7e90e5b993b3b8c8f589069d655da40c3ed514b99291ddf06aad66b0a634896daac19adf459ff791dccf3234af0e05
SSDEEP 192:sQNEcPshjd/dVaWnYPSZWrR6CM6CjVWsqCDLjJO/FEg98ZH:sQvshxFVaeYPoWH0VWsqCHQ/FEg9w
MD5 SHA1 SHA512 SSDEEP

Submit Download

Au_.exe

Path \Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
Size 51KB
SHA256 4ebdc9cf0c1addadf0070c64424d1792a90006dfa762b6459ddcae813e0c0825
MD5 e98c4556ea75dbfccb0f7ec340ca3548
SHA1 d41ffd10b8c5279c0e6273576f8a5855360f0087
SHA512 8e1c660a9da7c674fbc865b4c7667f3e7c97bf99aff6ca91ba8740f136cfc3c1bd6a3dc1c02432ccb55bb361bb36b62cb985ae7c543bb6c008cebaa9dce215eb
SSDEEP 1536:wLXB65939tY6HBg4sXJJlitGl1VhurNmvOq0A:wLk395hYXJ7PTu5I7
MD5 SHA1 SHA512 SSDEEP