18f807416a6d91f878ee2008b8cdb1638f7c9a759efbec15e984caecc9f179f7

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
04/02/2024, 16:19

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
uninstall.exe
Size 285KB
Sample240204-tstanagbfk
SHA256 39053d2fb6b3463d8270530fa09351156da25348e186eb33511980d7a6c5b8cd
MD5 bfe2be2406fc6a1427ccb70ec0c9d882
SHA1 f5b35571cc47673bb27e8e4ddddc2295fa1a4863
SHA512 98c1361ffdfa347d1eefc8faf1503f7479ee70be9a96b04779fdcca0663318b44376fb8d5970e83b9fb6dbe8ec3d2cae0796721f753ab03acea7d7a62ec1a4e5
SSDEEP 6144:Ee34nlpeZH+zpyuuz6GZkDOJ/7OafSH5KmrWym09x1T:+TeZHkwuPikQ7lKH5p5H9x1T
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2360	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
2940	uninstall.exe
2360	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/0x000c0000000139e6-2.dat	nsis_installer_1
behavioral13/files/0x000c0000000139e6-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2940 wrote to memory of 2360	2940	uninstall.exe	28
PID 2940 wrote to memory of 2360	2940	uninstall.exe	28
PID 2940 wrote to memory of 2360	2940	uninstall.exe	28
PID 2940 wrote to memory of 2360	2940	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:2940
- 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:2360

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

Loading Replay Monitor...

Downloads

aminsis.dll

Path \Users\Admin\AppData\Local\Temp\nsd23E6.tmp\aminsis.dll
Size 559KB
SHA256 b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539
MD5 51ba1095f0ae45a2d444bea506cb9ad4
SHA1 038a5d53d055a6d440bd2c8864c2f51db206c5e5
SHA512 f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361
SSDEEP 12288:kbdmSvBuSrDWoN/8Z+iZz2ULoygI/htZw3EKwcxi0T8NGAmN:bSvBuSG7+iZz2ULoyXZzw3E2tT8UAmN
MD5 SHA1 SHA512 SSDEEP

Submit Download

Au_.exe

Path \Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
Size 285KB
SHA256 39053d2fb6b3463d8270530fa09351156da25348e186eb33511980d7a6c5b8cd
MD5 bfe2be2406fc6a1427ccb70ec0c9d882
SHA1 f5b35571cc47673bb27e8e4ddddc2295fa1a4863
SHA512 98c1361ffdfa347d1eefc8faf1503f7479ee70be9a96b04779fdcca0663318b44376fb8d5970e83b9fb6dbe8ec3d2cae0796721f753ab03acea7d7a62ec1a4e5
SSDEEP 6144:Ee34nlpeZH+zpyuuz6GZkDOJ/7OafSH5KmrWym09x1T:+TeZHkwuPikQ7lKH5p5H9x1T
MD5 SHA1 SHA512 SSDEEP