f5684bd7650410f5a6f80d9885f68521cdf814124979bfc5a39b5b30a7010188

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08/11/2024, 00:59

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General

Target
$_2_/Uninstall.exe
Size 49KB
Sample241108-bb663stqhr
SHA256 8a340670d6126dbe07f1c41a2dd8652ef23387a6644e281f072c00c3d13ce2ef
MD5 17af5ad873fc0b6920b16f41638c4465
SHA1 9430c70934d8f7db9fc87705d60f37f8ed2f743a
SHA512 57cd4bc91c32194e4d64b27b9091e1bc43270b81e46b5dfc0a817066e230d8e37b57cb62e6d3bffaf886a33d53e266cb2d4a603f8bb6a78c42ed969f59123c5c
SSDEEP 768:3ip/4K0wirQK33PaH81Fej4w0kGvFONg4jjfS3XJIJRnvzwU:yZr0wirt3/aEecbsg4sXJ0
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2044	Au_.exe

Loads dropped DLL 4 IoCs

pid	Process
2148	Uninstall.exe
2044	Au_.exe
2044	Au_.exe
2044	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
behavioral19/files/0x0006000000018731-2.dat	nsis_installer_1
behavioral19/files/0x0006000000018731-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2148 wrote to memory of 2044	2148	Uninstall.exe	31
PID 2148 wrote to memory of 2044	2148	Uninstall.exe	31
PID 2148 wrote to memory of 2044	2148	Uninstall.exe	31
PID 2148 wrote to memory of 2044	2148	Uninstall.exe	31
PID 2148 wrote to memory of 2044	2148	Uninstall.exe	31
PID 2148 wrote to memory of 2044	2148	Uninstall.exe	31
PID 2148 wrote to memory of 2044	2148	Uninstall.exe	31

C:\Users\Admin\AppData\Local\Temp\$_2_\Uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\$_2_\Uninstall.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2148
- 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
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2044

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

Au_.exe

Path \Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
Size 49KB
SHA256 8a340670d6126dbe07f1c41a2dd8652ef23387a6644e281f072c00c3d13ce2ef
MD5 17af5ad873fc0b6920b16f41638c4465
SHA1 9430c70934d8f7db9fc87705d60f37f8ed2f743a
SHA512 57cd4bc91c32194e4d64b27b9091e1bc43270b81e46b5dfc0a817066e230d8e37b57cb62e6d3bffaf886a33d53e266cb2d4a603f8bb6a78c42ed969f59123c5c
SSDEEP 768:3ip/4K0wirQK33PaH81Fej4w0kGvFONg4jjfS3XJIJRnvzwU:yZr0wirt3/aEecbsg4sXJ0
MD5 SHA1 SHA512 SSDEEP

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