2e5d4efcd41c904f184fac0f2839d018fe71145ef204f47ce5802321b3d9fea3

Analysis

max time kernel
135s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28/09/2024, 06:47

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General

Target

$0/uninstall.exe
Size

82KB
MD5

a8cb4c299acee185c94ef6f3c23efced
SHA1

1d938f6655cb713344d45e9ab49bc683042de893
SHA256

968f9320876119b4fd3bdee48dffd83fab0c47c03732148e7124d2af3c8ef873
SHA512

fa3573593c67b478cf80d9a8be5f7a342cbaa392afd22ff4a00b19c12c60a8aec23cc8226dab9575029225d4fd9b591a9ec6ff0451f8648480c113204856430c
SSDEEP

1536:8EkjY1zy214Qay0DGkJ7qAELVigJIdUcpVPVwfdEOk2/DVZFE:bkjAJ4dDGkJ+AI0XzNwf2U/P

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
740	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
740	Au_.exe
740	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	Au_.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uninstall.exe

NSIS installer 1 IoCs

installer

resource	yara_rule
behavioral8/files/0x000800000002346f-3.dat	nsis_installer_1

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3200 wrote to memory of 740	3200	uninstall.exe	84
PID 3200 wrote to memory of 740	3200	uninstall.exe	84
PID 3200 wrote to memory of 740	3200	uninstall.exe	84

C:\Users\Admin\AppData\Local\Temp\$0\uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\$0\uninstall.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3200
- 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
  PID:740

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\nshBF78.tmp\InstallOptions.dll

Filesize
13KB

MD5
d765c492c21689e3d9d61634371fd861

SHA1
ac200933671ae52c9d5544d0e2e8e9144d286c83

SHA256
551e6042dd494ea01549555ffc194ab9729da09058ec714eb368dd06642c9bbc

SHA512
9919a9e848c8f1e26c75d0d29207571e4b86a4140bd554743d2c1f8bd7f386fe4919345b163d89a5d907fb165e435ba0ac5f6b1101713636141f156a420e2e0f

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C:\Users\Admin\AppData\Local\Temp\nshBF78.tmp\System.dll

Filesize
10KB

MD5
fe24766ba314f620d57d0cf7339103c0

SHA1
8641545f03f03ff07485d6ec4d7b41cbb898c269

SHA256
802ef71440f662f456bed6283a5ff78066af016897fe6bfd29cac6edc2967bbd

SHA512
60d36959895cebf29c4e7713e6d414980139c7aa4ed1c8c96fefb672c1263af0ce909fb409534355895649c0e8056635112efb0da2ba05694446aec2ca77e2e3

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C:\Users\Admin\AppData\Local\Temp\nshBF78.tmp\ioSpecial.ini

Filesize
688B

MD5
ff2dcd6cb3362d67d451f568a81117ac

SHA1
8acb40222133904257b362832ee8b891c49d283f

SHA256
668f79e5843deec4f95178925e2f4b60851e6634e1036209d16a53f263fdcc05

SHA512
e63d8e4d7f5894b3dd6ccec6cbc90cb7ca310e1a3413db47c9de565f3bddeb43fb439668418ffb1373142938f3e2a44388b5ae6c26aeb4d9d1eca76fb2ea67cc

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C:\Users\Admin\AppData\Local\Temp\nshBF78.tmp\ioSpecial.ini

Filesize
702B

MD5
c9258534cd296e23dfb16fca242232a5

SHA1
feaeb5682f4f92c1180576f717bab85310000527

SHA256
ec6febf934d635ff6bae672afd4b77df85848a9671bf45d59e73e9045a932d0b

SHA512
90274514f8fe69b1182cf5bced4bb595813055ac2487e4002b892614a3bb60d8da7cb24ea9007130e00919f28d83104bef4c909f1b55b755ab7d31da050bea6d

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

Filesize
82KB

MD5
a8cb4c299acee185c94ef6f3c23efced

SHA1
1d938f6655cb713344d45e9ab49bc683042de893

SHA256
968f9320876119b4fd3bdee48dffd83fab0c47c03732148e7124d2af3c8ef873

SHA512
fa3573593c67b478cf80d9a8be5f7a342cbaa392afd22ff4a00b19c12c60a8aec23cc8226dab9575029225d4fd9b591a9ec6ff0451f8648480c113204856430c

Download Submit