2c4605f90421c53e63678c25714e765781d3f2bf8eeaec872a845bb2b6f84f14

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
17/08/2024, 10:13

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General

Target

Uninstall.exe
Size

49KB
MD5

8737a510d4fd47045c486194b70e34da
SHA1

9176023b50eabd66b925628465d6c6364005847f
SHA256

1eb3baf8c712ddaa8cf25c3b2e4c496b3823c0f5059d004dd27f93260602fb58
SHA512

d0d1625627e6ec1e0332c469dec1e46295c115a2abb3e876fa4fa42c62d931e4ca7d7b5ced3de5ba5a8d32e9d945bf981cb1c12b7738922b222a462e691a3004
SSDEEP

1536:DRf1o2Ca7qiagSshdS0D6mJjgdLeAyNLe:Dpj7EUbD6mJjceAR

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2676	Au_.exe

Loads dropped DLL 4 IoCs

pid	Process
2416	Uninstall.exe
2676	Au_.exe
2676	Au_.exe
2676	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 1 IoCs

installer

resource	yara_rule
behavioral23/files/0x0008000000019315-2.dat	nsis_installer_1

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2676	Au_.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 2676	2416	Uninstall.exe	30
PID 2416 wrote to memory of 2676	2416	Uninstall.exe	30
PID 2416 wrote to memory of 2676	2416	Uninstall.exe	30
PID 2416 wrote to memory of 2676	2416	Uninstall.exe	30
PID 2416 wrote to memory of 2676	2416	Uninstall.exe	30
PID 2416 wrote to memory of 2676	2416	Uninstall.exe	30
PID 2416 wrote to memory of 2676	2416	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:2416
- 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
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2676

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

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Downloads

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

Filesize
49KB

MD5
8737a510d4fd47045c486194b70e34da

SHA1
9176023b50eabd66b925628465d6c6364005847f

SHA256
1eb3baf8c712ddaa8cf25c3b2e4c496b3823c0f5059d004dd27f93260602fb58

SHA512
d0d1625627e6ec1e0332c469dec1e46295c115a2abb3e876fa4fa42c62d931e4ca7d7b5ced3de5ba5a8d32e9d945bf981cb1c12b7738922b222a462e691a3004

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