afe4c1ac48c58f0671f15c3741e7e822d4f84fb99d05e14117005cc80912bcf6

Analysis

max time kernel
119s
max time network
121s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
11/08/2024, 14:16

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General

Target

uninst.exe
Size

149KB
MD5

7d0e1740584afdb1e99e6c9c19995598
SHA1

a3386ecdc55b829486eb6dffb906a2717137dda1
SHA256

40ff460e185c76f5ed7a9110b740aa000092cc5776cc76d823eb443680da0b96
SHA512

51c2d281d258424485ce24293d5769828e486c7c566a42fd2934825c1a8035922ac15c7b95bc28ae46b32e362120b2422eaa72d68352108ddf502be046741177
SSDEEP

3072:tYg4pumJGq4JXCgFytYp81Vq9/945QW2ZZMHKmk45MBpKPWA:tlg4JXjytk146FQlkoG0PWA

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2744	Au_.exe

Loads dropped DLL 8 IoCs

pid	Process
3052	uninst.exe
2744	Au_.exe
2744	Au_.exe
2744	Au_.exe
2744	Au_.exe
2744	Au_.exe
2744	Au_.exe
2744	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	uninst.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral27/files/0x000500000001939d-2.dat	nsis_installer_1
behavioral27/files/0x000500000001939d-2.dat	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2744	Au_.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3052 wrote to memory of 2744	3052	uninst.exe	30
PID 3052 wrote to memory of 2744	3052	uninst.exe	30
PID 3052 wrote to memory of 2744	3052	uninst.exe	30
PID 3052 wrote to memory of 2744	3052	uninst.exe	30
PID 3052 wrote to memory of 2744	3052	uninst.exe	30
PID 3052 wrote to memory of 2744	3052	uninst.exe	30
PID 3052 wrote to memory of 2744	3052	uninst.exe	30

C:\Users\Admin\AppData\Local\Temp\uninst.exe
"C:\Users\Admin\AppData\Local\Temp\uninst.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3052
- 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:2744

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\nse4F1C.tmp\ioSpecial.ini

Filesize
642B

MD5
2c94e021b7d3f2b87adc44849b9e5f54

SHA1
bbff692908f1562806aad6fb8bdbc46f52702526

SHA256
7c8d83a30065216b0f7d0a2ea8cd0a3b29a89a869c47f25ff1c7e7c50eb8a4cb

SHA512
5b9ede1758df81af8ca9a944b9dc3356fe058981ec6e63e48422869c93bb0f7fbc8694ebf75a203c87160c6fc258d5143baa1b9129e60c5ce1376870d2875ee4

Download Submit
\Users\Admin\AppData\Local\Temp\nse4F1C.tmp\InstallOptions.dll

Filesize
14KB

MD5
eef9e469e8a30717974499f277d97e2a

SHA1
2d33c25984ebd9116beeb55cdde4c5c86c023e5d

SHA256
1f35bb6728237483c779005fc227e69fef51b0bafd32d15855d483948a337078

SHA512
d860132106a1c03dfa23f983b3c503f1216ac02f3d47833b96dfb333fb30bc8ab4d4fecd1f1f0a89f0c7f3586405461e2d53c26f282bb48970e549659b364b48

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\Users\Admin\AppData\Local\Temp\nse4F1C.tmp\System.dll

Filesize
11KB

MD5
c6f5b9596db45ce43f14b64e0fbcf552

SHA1
665a2207a643726602dc3e845e39435868dddabc

SHA256
4b6da3f2bdb6c452fb493b98f6b7aa1171787dbd3fa2df2b3b22ccaeac88ffa0

SHA512
8faa0204f9ed2721acede285be843b5a2d7f9986841bcf3816ebc8900910afb590816c64aebd2dd845686daf825bbf9970cb4a08b20a785c7e54542eddc5b09a

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\Users\Admin\AppData\Local\Temp\nse4F1C.tmp\UserInfo.dll

Filesize
4KB

MD5
66bb40a1defb0aef9865919689d4aa96

SHA1
90cc473004f4351f25d026d13b3f7cb19ee23908

SHA256
82772146a77ac3bf5e3564361ca0de0b612a44482de4cf418c3deaa3b2ae7f1a

SHA512
1f26650b7d0068b7e8ad1ac861e00bd184c8bf47363e4766b17a9aed5985f8a54efdde87b30cd9b649d6f5b8eb991ef9d06d4501eac264e1ff096506786133c2

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

Filesize
149KB

MD5
7d0e1740584afdb1e99e6c9c19995598

SHA1
a3386ecdc55b829486eb6dffb906a2717137dda1

SHA256
40ff460e185c76f5ed7a9110b740aa000092cc5776cc76d823eb443680da0b96

SHA512
51c2d281d258424485ce24293d5769828e486c7c566a42fd2934825c1a8035922ac15c7b95bc28ae46b32e362120b2422eaa72d68352108ddf502be046741177

Download Submit