d215cf3550092e9833a3f540caca905b73460f9b0ea0f97637aea5301e9389f7

Analysis

max time kernel
93s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11/10/2024, 22:24

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General

Target

uninst.exe
Size

33KB
MD5

681f025c5d03e74b5d200300f2927a07
SHA1

336161a0e1b1593711fb097f495c9b4b4b88fbc2
SHA256

744f8847f96d6c1e1fcb0ef0cb6714d1fa287acf465c90a9643c3e3d5de5ab47
SHA512

c4279036db2e8879755e19adfc3e0ad24632f69eac38c778285602e2586611633da567a078faf4cd07bbe1c216d42c9b14685d6f00f7c2f7e3ac0a36d917d456
SSDEEP

768:phMZ0dF4ZFvQbn+eePu3cIQGCGbiC4k42M3wJJdgM:pyZMSZFvknTePMZd4k4kJJdgM

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
756	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
756	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	Au_.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uninst.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral14/files/0x0007000000023c8b-3.dat	nsis_installer_1
behavioral14/files/0x0007000000023c8b-3.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1532 wrote to memory of 756	1532	uninst.exe	85
PID 1532 wrote to memory of 756	1532	uninst.exe	85
PID 1532 wrote to memory of 756	1532	uninst.exe	85

C:\Users\Admin\AppData\Local\Temp\uninst.exe
"C:\Users\Admin\AppData\Local\Temp\uninst.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1532
- 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
  - System Location Discovery: System Language Discovery
  PID:756

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
33KB

MD5
681f025c5d03e74b5d200300f2927a07

SHA1
336161a0e1b1593711fb097f495c9b4b4b88fbc2

SHA256
744f8847f96d6c1e1fcb0ef0cb6714d1fa287acf465c90a9643c3e3d5de5ab47

SHA512
c4279036db2e8879755e19adfc3e0ad24632f69eac38c778285602e2586611633da567a078faf4cd07bbe1c216d42c9b14685d6f00f7c2f7e3ac0a36d917d456

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