cb9c189d73fb6b6555098a84dcd3c0daf7c06717cc6a23ac45381f8e7a545086

Analysis

max time kernel
95s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
09-09-2024 03:45

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General

Target

$_2_/Uninstall.exe
Size

42KB
MD5

9787542432e07524484183fd2fa1a080
SHA1

77daa1bf84000621fd3929eb44b1069794c53b3b
SHA256

e82cd4233a273f9eab2e89302023f690c0b0b1cb7d11861c5dd98547b01b53f9
SHA512

66f04867a0d6c7c88f21c0a400673a3e1b6a08fcab3036bc937b322b81d519e4e555cc628b6be5d2cbc76d8c97b4c95157bfb6c37163a540b2b474d1c003276e
SSDEEP

768:/4wO7XBz+5Qm3W0tYdrQZHV4EWuWEUOg4jjfS3XJDJRnhzwr:gLXB65939tY6HBg4sXJk

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4728	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	Uninstall.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral20/files/0x00070000000234d6-3.dat	nsis_installer_1
behavioral20/files/0x00070000000234d6-3.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3132 wrote to memory of 4728	3132	Uninstall.exe	85
PID 3132 wrote to memory of 4728	3132	Uninstall.exe	85
PID 3132 wrote to memory of 4728	3132	Uninstall.exe	85

C:\Users\Admin\AppData\Local\Temp\$_2_\Uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\$_2_\Uninstall.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3132
- 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_\
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4728

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
42KB

MD5
9787542432e07524484183fd2fa1a080

SHA1
77daa1bf84000621fd3929eb44b1069794c53b3b

SHA256
e82cd4233a273f9eab2e89302023f690c0b0b1cb7d11861c5dd98547b01b53f9

SHA512
66f04867a0d6c7c88f21c0a400673a3e1b6a08fcab3036bc937b322b81d519e4e555cc628b6be5d2cbc76d8c97b4c95157bfb6c37163a540b2b474d1c003276e

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