cb5607e38cab953f46e03eb941025eacf1b131c42f85fe7e486c598eab34e95e

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
25/06/2024, 04:24

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General

Target

$0/uninstall.exe
Size

82KB
MD5

2b9d5d67e5a787e82df93596ba8be0ad
SHA1

fa073dbb88bf52e3cc202ce53b55831f1c6d33d2
SHA256

8c5f4d34ecd29cccc4a8bd879911b82a58ce023c28079dccc6cc80eea3f754da
SHA512

563be9fdf6c81f8f801ff93d9513ec6438f7e978c168ba39fa73830c4c298bb59ed27f033425f00699fcdccb7c4cb13ff01a733cab1f985e126fbe43298cfc52
SSDEEP

1536:AEkjY1zy214Qay0DGkJ7qAELVigJ9mcptJgNfKeQ2/DRkAo:vkjAJ4dDGkJ+AI08PXJGKeH/E

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2500	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
2052	uninstall.exe
2500	Au_.exe
2500	Au_.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

NSIS installer 1 IoCs

installer

resource	yara_rule
behavioral7/files/0x00290000000142d0-2.dat	nsis_installer_1

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2500	Au_.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2052 wrote to memory of 2500	2052	uninstall.exe	28
PID 2052 wrote to memory of 2500	2052	uninstall.exe	28
PID 2052 wrote to memory of 2500	2052	uninstall.exe	28
PID 2052 wrote to memory of 2500	2052	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
- Suspicious use of WriteProcessMemory
PID:2052
- 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
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2500

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsj7254.tmp\ioSpecial.ini

Filesize
610B

MD5
16195b6a9dd1be32e8a8b791479fe66b

SHA1
1cfb9d53a125644022ac49aa3bab38771996012c

SHA256
07d9d2c9ab646e2368361de2d2e85338872c254c1d8a126602e4abb3d76e9ae6

SHA512
8c14fbe945e0864e54b056efd2a4986e2fc7b2097f2d5cdcd2874d5f9d0d3d03612e1193f843e90eeb35d243ed291fa46946f89d85345638ea66c64d6a6f4a82

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C:\Users\Admin\AppData\Local\Temp\nsj7254.tmp\ioSpecial.ini

Filesize
623B

MD5
f882c1eeb25f26d9f5a67cf9bf493362

SHA1
156935fb2171904572e1d5d73bf4c6dbf63f4a3c

SHA256
c40a717dba912b81414ad28b21dd8a72e97d084b56b28c43afd5e5dc69c27b9e

SHA512
2ffbcb7a01fe9fd335d464ea256b6a7864af00fcf519f1da255952795daa07f6d2785f2e9f4a36f31ebe153a73557be70b25a423213b7f941e1eb8114eceb819

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\Users\Admin\AppData\Local\Temp\nsj7254.tmp\InstallOptions.dll

Filesize
13KB

MD5
d765c492c21689e3d9d61634371fd861

SHA1
ac200933671ae52c9d5544d0e2e8e9144d286c83

SHA256
551e6042dd494ea01549555ffc194ab9729da09058ec714eb368dd06642c9bbc

SHA512
9919a9e848c8f1e26c75d0d29207571e4b86a4140bd554743d2c1f8bd7f386fe4919345b163d89a5d907fb165e435ba0ac5f6b1101713636141f156a420e2e0f

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\Users\Admin\AppData\Local\Temp\nsj7254.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
82KB

MD5
2b9d5d67e5a787e82df93596ba8be0ad

SHA1
fa073dbb88bf52e3cc202ce53b55831f1c6d33d2

SHA256
8c5f4d34ecd29cccc4a8bd879911b82a58ce023c28079dccc6cc80eea3f754da

SHA512
563be9fdf6c81f8f801ff93d9513ec6438f7e978c168ba39fa73830c4c298bb59ed27f033425f00699fcdccb7c4cb13ff01a733cab1f985e126fbe43298cfc52

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