8bc048f9bede0090e4336fa3304ac0ab71da97026c7962104751b61aec3e25c0

Analysis

max time kernel
122s
max time network
122s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
04/02/2024, 16:08

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General

Target
uninstall.exe
Size 289KB
Sample240204-tk8elsfhcr
SHA256 9b763be68d1c34d95a8617a2becc59ca56a82dbe6be78e4d234005e9fdc62597
MD5 8ece4edaa62521f2071356e1e9cd55b8
SHA1 5ce411f6885c70fc5c00c5857aa1e4d09d1b18df
SHA512 08baefb04b9b111a2fcd342db7b299f6e90ca8c0b9ff189d36a6570bce3b899f445bccb7a7d1dcdba6605871af729dc0b20d89d8316503bcc3104c5abf1a0d48
SSDEEP 6144:Ue34osRg4l8ai5PQtTZ763J8eWW43YLYjn5uO7D32fuCa7Bme:lsq4OaQQTYJ8eP4/L5uO7D3f5Br
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2172	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
2000	uninstall.exe
2172	Au_.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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
behavioral13/files/0x00090000000141c0-2.dat	nsis_installer_1
behavioral13/files/0x00090000000141c0-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 2172	2000	uninstall.exe	28
PID 2000 wrote to memory of 2172	2000	uninstall.exe	28
PID 2000 wrote to memory of 2172	2000	uninstall.exe	28
PID 2000 wrote to memory of 2172	2000	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:2000
- 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
  PID:2172

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

aminsis.dll

Path \Users\Admin\AppData\Local\Temp\nso2203.tmp\aminsis.dll
Size 567KB
SHA256 1c371dcc6c3428ea98fb0d2dcb612b4ebc731f3ed72e683c8e33058cd2a952d3
MD5 450753ad96785a240a39deccab3af0d0
SHA1 21c544064d2ffa6444508268ce258a330d459fc5
SHA512 c41b834f4228b7668316095569c836b4e0d55c5fbf310c65b0e0453ef0e74a3ce8f9357cea90b80f6590f85dd7708eeb4eec27518811ea4aab20c0e7f5643dab
SSDEEP 12288:i/x6GnSkidh7NfMc4G1ppgH81vrKiuu+PUHOGcl5Sbl9B9GUdL:9GnSkWh4G1ppgH81vrBu3MHOGUKfGU
MD5 SHA1 SHA512 SSDEEP

Submit Download

Au_.exe

Path \Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
Size 289KB
SHA256 9b763be68d1c34d95a8617a2becc59ca56a82dbe6be78e4d234005e9fdc62597
MD5 8ece4edaa62521f2071356e1e9cd55b8
SHA1 5ce411f6885c70fc5c00c5857aa1e4d09d1b18df
SHA512 08baefb04b9b111a2fcd342db7b299f6e90ca8c0b9ff189d36a6570bce3b899f445bccb7a7d1dcdba6605871af729dc0b20d89d8316503bcc3104c5abf1a0d48
SSDEEP 6144:Ue34osRg4l8ai5PQtTZ763J8eWW43YLYjn5uO7D32fuCa7Bme:lsq4OaQQTYJ8eP4/L5uO7D3f5Br
MD5 SHA1 SHA512 SSDEEP