4e4b8234d3d3dbae0be13b2877eb20a57de08d86df8549bee9e562732b7ad5a7

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
09-09-2024 20:54

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General

Target

Uninstall.exe
Size

90KB
MD5

581743e2d7c9325f177189627c4cac5f
SHA1

460c2b8205c0bdab781dfda1ab0ec7ad5156a0a1
SHA256

5a6cf6f2d0417da3ea87a27119fa8f259d73f2dc5c7d46879c350b6ceb507bee
SHA512

f3a9ba05fc34239282e2085aef25ff76d03180cb2108bf00327a82682482e7306b5f21c367e6b3281d60d33b925b943e2d6355a4ae0772b079cedeaf88cdda35
SSDEEP

1536:ZpgpHzb9dZVX9fHMvG0D3XJSgdLeAyNxCCIG5bbE9nLwv/lcQ/l/uKVEF2HhfY3s:TgXdZt9P6D3XJSceAH9nLwvdkKV+SN

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2540	Au_.exe

Loads dropped DLL 1 IoCs

pid	Process
3068	Uninstall.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
behavioral5/files/0x000500000001c896-2.dat	nsis_installer_1
behavioral5/files/0x000500000001c896-2.dat	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2540	Au_.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3068 wrote to memory of 2540	3068	Uninstall.exe	30
PID 3068 wrote to memory of 2540	3068	Uninstall.exe	30
PID 3068 wrote to memory of 2540	3068	Uninstall.exe	30
PID 3068 wrote to memory of 2540	3068	Uninstall.exe	30

C:\Users\Admin\AppData\Local\Temp\Uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\Uninstall.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3068
- 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⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2540

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
90KB

MD5
581743e2d7c9325f177189627c4cac5f

SHA1
460c2b8205c0bdab781dfda1ab0ec7ad5156a0a1

SHA256
5a6cf6f2d0417da3ea87a27119fa8f259d73f2dc5c7d46879c350b6ceb507bee

SHA512
f3a9ba05fc34239282e2085aef25ff76d03180cb2108bf00327a82682482e7306b5f21c367e6b3281d60d33b925b943e2d6355a4ae0772b079cedeaf88cdda35

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