36ad3ad56de732f194a3058134741e4631c120aef9fca3bbf61ead6f71aeeecc

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
20/08/2024, 20:34 UTC

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General

Target

uninst.exe
Size

65KB
MD5

79555a3d69e66899e98fa5252fba608f
SHA1

66a7b470e5f0a0534aa65fd3c724301d4366fef6
SHA256

04f4a4ef816a929cc64fa7deaa142fdd02e9b6e89511d7c79c3cf9d382647a7a
SHA512

61bee7a7847f1b94f349d5fa8bb6b994aa0c0ef10c8bd8b6ffeb0ead2a94a1b39e0f8c957a20d4713a49e937835a184001312e60e907bdd7b05b40645b748800
SSDEEP

1536:sppal05FyuC/jL052PgFEla4ZJJcC2gBZZZ3gxLSAOMbfj:sp8l05FyX0mpa4ZJJcrswSApf

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3024	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
3024	Au_.exe

Loads dropped DLL 4 IoCs

pid	Process
2388	uninst.exe
3024	Au_.exe
3024	Au_.exe
3024	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
behavioral7/files/0x0006000000016d41-6.dat	nsis_installer_1
behavioral7/files/0x0006000000016d41-6.dat	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3024	Au_.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 3024	2388	uninst.exe	30
PID 2388 wrote to memory of 3024	2388	uninst.exe	30
PID 2388 wrote to memory of 3024	2388	uninst.exe	30
PID 2388 wrote to memory of 3024	2388	uninst.exe	30
PID 2388 wrote to memory of 3024	2388	uninst.exe	30
PID 2388 wrote to memory of 3024	2388	uninst.exe	30
PID 2388 wrote to memory of 3024	2388	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:2388
- 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
  - Suspicious behavior: GetForegroundWindowSpam
  PID:3024

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

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

Filesize
65KB

MD5
79555a3d69e66899e98fa5252fba608f

SHA1
66a7b470e5f0a0534aa65fd3c724301d4366fef6

SHA256
04f4a4ef816a929cc64fa7deaa142fdd02e9b6e89511d7c79c3cf9d382647a7a

SHA512
61bee7a7847f1b94f349d5fa8bb6b994aa0c0ef10c8bd8b6ffeb0ead2a94a1b39e0f8c957a20d4713a49e937835a184001312e60e907bdd7b05b40645b748800

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