27f31860fd9f2a5b127f0d13972cd0a9d3f589a9add6fa0d7feac606f2a7cb5b

Analysis

max time kernel
118s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08/04/2024, 03:51

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General

Target
uninstall.exe
Size 90KB
Sample240408-eepyraga24
SHA256 afb14aee4127f0e4f662d0ade3efede48ea54045e422ca26e08024a60dc972b4
MD5 16c86ad4d25b228930ff1019e4e3292f
SHA1 3ce7ad87f8210564399dd28f5413b8c450dd7b14
SHA512 0bacd4ea9fb0c741dd5ae4f8560a16efbf7d1dc2fe6fbeedc11a0a0112d2137bdce491b41a0d64a39f8ab5261829dae5cc3cb0f274780deeb061db365f93db7d
SSDEEP 1536:1pgpHzb9dZVX9fHMvG0D3XJPMzKO5b4ae3z7FDYV5R9AcVVMncJGjef2od:ngXdZt9P6D3XJPqKO5e/FDeFjVOntiO0
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2548	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
1488	uninstall.exe
2548	Au_.exe
2548	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
behavioral25/files/0x000900000001225c-2.dat	nsis_installer_1
behavioral25/files/0x000900000001225c-2.dat	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2548	Au_.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 2548	1488	uninstall.exe	28
PID 1488 wrote to memory of 2548	1488	uninstall.exe	28
PID 1488 wrote to memory of 2548	1488	uninstall.exe	28
PID 1488 wrote to memory of 2548	1488	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:1488
- 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:2548

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

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Downloads

System.dll

Path \Users\Admin\AppData\Local\Temp\nst5552.tmp\System.dll
Size 11KB
SHA256 dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f
MD5 c17103ae9072a06da581dec998343fc1
SHA1 b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d
SHA512 d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f
SSDEEP 192:7DKnJZCv6VmbJQC+tFiUdK7ckD4gRXKQx+LQ2CSF:7ViJrtFRdbmXK8+PCw
MD5 SHA1 SHA512 SSDEEP

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UserInfo.dll

Path \Users\Admin\AppData\Local\Temp\nst5552.tmp\UserInfo.dll
Size 4KB
SHA256 564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5
MD5 7579ade7ae1747a31960a228ce02e666
SHA1 8ec8571a296737e819dcf86353a43fcf8ec63351
SHA512 a88bc56e938374c333b0e33cb72951635b5d5a98b9cb2d6785073cbcad23bf4c0f9f69d3b7e87b46c76eb03ced9bb786844ce87656a9e3df4ca24acf43d7a05b
MD5 SHA1 SHA512

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Au_.exe

Path \Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
Size 90KB
SHA256 afb14aee4127f0e4f662d0ade3efede48ea54045e422ca26e08024a60dc972b4
MD5 16c86ad4d25b228930ff1019e4e3292f
SHA1 3ce7ad87f8210564399dd28f5413b8c450dd7b14
SHA512 0bacd4ea9fb0c741dd5ae4f8560a16efbf7d1dc2fe6fbeedc11a0a0112d2137bdce491b41a0d64a39f8ab5261829dae5cc3cb0f274780deeb061db365f93db7d
SSDEEP 1536:1pgpHzb9dZVX9fHMvG0D3XJPMzKO5b4ae3z7FDYV5R9AcVVMncJGjef2od:ngXdZt9P6D3XJPqKO5e/FDeFjVOntiO0
MD5 SHA1 SHA512 SSDEEP

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads