8fa8f3edd9507da214ad4ea3dc324c173a6c9f7b0ad18040955091f38fbc9934

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-10-2024 21:07

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General

Target

Uninstall.exe
Size

51KB
MD5

3c88339bf3073a576c06b73877a5022f
SHA1

05d3626d513bae59c6c0a990d6c7f4d9896ed33a
SHA256

7b08feffe9893a2e2cd34e1521a9b719ca0e6b5e4e39e081cd48cf4aa77a9dcc
SHA512

c3741588cb0e5721c648eab7fda5d493d7c14428d6dd18162deaedf321277ddc06aae2d4aff1941fdcd8174a50532bc147e0fa02a57e47009ff34c4f254b0a63
SSDEEP

1536:wLXB65939tY6HBg4sXJJle7BCGl1VhzDRE9U+idV2:wLk395hYXJ7WBXTve9WD2

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1100	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
1100	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
2360	Uninstall.exe
1100	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
behavioral17/files/0x0005000000019261-5.dat	nsis_installer_1
behavioral17/files/0x0005000000019261-5.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 1100	2360	Uninstall.exe	30
PID 2360 wrote to memory of 1100	2360	Uninstall.exe	30
PID 2360 wrote to memory of 1100	2360	Uninstall.exe	30
PID 2360 wrote to memory of 1100	2360	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:2360
- 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
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1100

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
51KB

MD5
3c88339bf3073a576c06b73877a5022f

SHA1
05d3626d513bae59c6c0a990d6c7f4d9896ed33a

SHA256
7b08feffe9893a2e2cd34e1521a9b719ca0e6b5e4e39e081cd48cf4aa77a9dcc

SHA512
c3741588cb0e5721c648eab7fda5d493d7c14428d6dd18162deaedf321277ddc06aae2d4aff1941fdcd8174a50532bc147e0fa02a57e47009ff34c4f254b0a63

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\Users\Admin\AppData\Local\Temp\nsyA14F.tmp\UAC.dll

Filesize
13KB

MD5
431e5b960aa15af5d153bae6ba6b7e87

SHA1
e090c90be02e0bafe5f3d884c0525d8f87b3db40

SHA256
a6d956f28c32e8aa2ab2df13ef52637e23113fab41225031e7a3d47390a6cf13

SHA512
f1526c7e4d0fce8ab378e43e89aafb1d7e9d57ef5324501e804091e99331dd2544912181d6d4a07d30416fe17c892867c593aee623834935e11c7bb385c6a0a8

Download Submit