328a59e0878a3736771fe9eb14a2627d2f84f098d855aa01f0866d566c04dc5f

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
25-08-2024 15:11

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General

Target

uninst.exe
Size

42KB
MD5

d1e0bb2a2cde67df40fe53d499353cd9
SHA1

e8f46d8aa6a298cb637fa33697bcf2c32e5c844b
SHA256

12acea09f1c540882e8277115ea25b96d4f4c2a5e5c2776a06d9e86dfadcd37e
SHA512

b263c255c071d36550913b520d894c58ceaa169e583584835c367a39c9ff53d683dd67d5f916dd79047b4144612afa05313d14a5fee835bbbe2eea1e8b8b9c3e
SSDEEP

768:k1cVhpQI2EQK0iPDh84nScF15GYbWjXO3XJtVpLppxNHTXjk+9JXvL2:CQpQ5EP0ijnRTXJtbLLxNHVi

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2668	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
2668	Au_.exe

Loads dropped DLL 4 IoCs

pid	Process
1528	uninst.exe
2668	Au_.exe
2668	Au_.exe
2668	Au_.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uninst.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral21/files/0x0005000000019620-10.dat	nsis_installer_1
behavioral21/files/0x0005000000019620-10.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1528 wrote to memory of 2668	1528	uninst.exe	30
PID 1528 wrote to memory of 2668	1528	uninst.exe	30
PID 1528 wrote to memory of 2668	1528	uninst.exe	30
PID 1528 wrote to memory of 2668	1528	uninst.exe	30
PID 1528 wrote to memory of 2668	1528	uninst.exe	30
PID 1528 wrote to memory of 2668	1528	uninst.exe	30
PID 1528 wrote to memory of 2668	1528	uninst.exe	30

C:\Users\Admin\AppData\Local\Temp\uninst.exe
"C:\Users\Admin\AppData\Local\Temp\uninst.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1528
- 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⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

Filesize
42KB

MD5
d1e0bb2a2cde67df40fe53d499353cd9

SHA1
e8f46d8aa6a298cb637fa33697bcf2c32e5c844b

SHA256
12acea09f1c540882e8277115ea25b96d4f4c2a5e5c2776a06d9e86dfadcd37e

SHA512
b263c255c071d36550913b520d894c58ceaa169e583584835c367a39c9ff53d683dd67d5f916dd79047b4144612afa05313d14a5fee835bbbe2eea1e8b8b9c3e

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