4da6d05310e71458b83159152f8094594eff425a9c3c0830ff74b9922108b0a5

Analysis

max time kernel
100s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-09-2024 05:39

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General

Target

$0/uninstall.exe
Size

78KB
MD5

fe839ac1d4d65210a6878e860a9e9812
SHA1

4f06d2f9ba5375955a29e802bd5820a6abfdc4d1
SHA256

51b54e24d30b449302cb58a0e958a60c2911127816762a6477cf7a6408082998
SHA512

605b11db73a268a4ef1223962d3c2677f7a86ce505829a7a059a0a5bab54da327af1dba78efbab0c6d7a2e3f26cd58ff9c5f9d78a241eadb3920ea4868185fda
SSDEEP

1536:PEkjY1zy214Qay0DGkJ7qAELVigJwIcpub3RsagxxZ/RL32/Dq:8kjAJ4dDGkJ+AI0tB8hsagjZ/RLm/O

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2004	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
2868	uninstall.exe
2004	Au_.exe
2004	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
behavioral7/files/0x000500000001875d-2.dat	nsis_installer_1

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2004	Au_.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 2004	2868	uninstall.exe	28
PID 2868 wrote to memory of 2004	2868	uninstall.exe	28
PID 2868 wrote to memory of 2004	2868	uninstall.exe	28
PID 2868 wrote to memory of 2004	2868	uninstall.exe	28

C:\Users\Admin\AppData\Local\Temp\$0\uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\$0\uninstall.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2868
- 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\$0\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2004

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\nst891E.tmp\ioSpecial.ini

Filesize
610B

MD5
42a9964bb7ad6245832e98a4f96245fc

SHA1
21d545b1b51bc79274a8405b768e0087ef2dc6dc

SHA256
3b608f0f13894ecb80f5a9dae6e9df42510845146bc5227f5e9c9572971e6a36

SHA512
0ad8a23c913b8ce2ca36e427f6a67020a099b92ca501565f5d285ebea4725de6c4df91808a2dfd7523df71c802c7be3c41b18dde329fa5f45aef899dcfcd758e

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\Users\Admin\AppData\Local\Temp\nst891E.tmp\InstallOptions.dll

Filesize
13KB

MD5
d765c492c21689e3d9d61634371fd861

SHA1
ac200933671ae52c9d5544d0e2e8e9144d286c83

SHA256
551e6042dd494ea01549555ffc194ab9729da09058ec714eb368dd06642c9bbc

SHA512
9919a9e848c8f1e26c75d0d29207571e4b86a4140bd554743d2c1f8bd7f386fe4919345b163d89a5d907fb165e435ba0ac5f6b1101713636141f156a420e2e0f

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\Users\Admin\AppData\Local\Temp\nst891E.tmp\System.dll

Filesize
10KB

MD5
fe24766ba314f620d57d0cf7339103c0

SHA1
8641545f03f03ff07485d6ec4d7b41cbb898c269

SHA256
802ef71440f662f456bed6283a5ff78066af016897fe6bfd29cac6edc2967bbd

SHA512
60d36959895cebf29c4e7713e6d414980139c7aa4ed1c8c96fefb672c1263af0ce909fb409534355895649c0e8056635112efb0da2ba05694446aec2ca77e2e3

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

Filesize
78KB

MD5
fe839ac1d4d65210a6878e860a9e9812

SHA1
4f06d2f9ba5375955a29e802bd5820a6abfdc4d1

SHA256
51b54e24d30b449302cb58a0e958a60c2911127816762a6477cf7a6408082998

SHA512
605b11db73a268a4ef1223962d3c2677f7a86ce505829a7a059a0a5bab54da327af1dba78efbab0c6d7a2e3f26cd58ff9c5f9d78a241eadb3920ea4868185fda

Download Submit