f0e6c28dc38edb43d964e936c14b292d12c035c082925830ae4d61f590e567a2

Analysis

max time kernel
120s
max time network
127s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26/01/2024, 13:36

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General

Target

$0/uninstall.exe
Size

78KB
MD5

a2a6e2fe649d7df57bc7c53c43b70d8d
SHA1

8909dccd63e93d13be0d7d2d13fc18213cd2fce0
SHA256

a64aa3eeeb7916ad2bcaa43b58394636ca74f29403fd667a2d370d2710858fe2
SHA512

afa67804416104160c3c5f9ebe45d4adbf25f6cb85a65ac20c08918e6e67939105173a25a83f7191c4dcfc7a9d26db1edc6cacd42e1c6c70ec1a35b62e07ba69
SSDEEP

1536:PEkjY1zy214Qay0DGkJ7qAELVigJLcpub3RsagxxZ/RL32/DB:8kjAJ4dDGkJ+AI0F8hsagjZ/RLm/1

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2872	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
2540	uninstall.exe
2872	Au_.exe
2872	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/0x000e0000000122ec-2.dat	nsis_installer_1

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2872	Au_.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2540 wrote to memory of 2872	2540	uninstall.exe	28
PID 2540 wrote to memory of 2872	2540	uninstall.exe	28
PID 2540 wrote to memory of 2872	2540	uninstall.exe	28
PID 2540 wrote to memory of 2872	2540	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:2540
- 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:2872

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\nsi3D01.tmp\ioSpecial.ini

Filesize
610B

MD5
699d0e929c2972ccb32ce739e4119734

SHA1
e52e3b154c6d7bd21f7be5fd734f610c73cb5293

SHA256
5ed5b2e35e39edcadc84574513962c97f7a73119fece1f37c444ede4a3442b91

SHA512
2782ab1ced8f5ad7d754ba4b47d0c7b4471a27f3becec5bf4ddac872ca3443db2d2e5c1e7535724f9ddeebf4339c982b3c0e7e2ff40ce8a275c04afcbb5d4c8b

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\Users\Admin\AppData\Local\Temp\nsi3D01.tmp\InstallOptions.dll

Filesize
13KB

MD5
d765c492c21689e3d9d61634371fd861

SHA1
ac200933671ae52c9d5544d0e2e8e9144d286c83

SHA256
551e6042dd494ea01549555ffc194ab9729da09058ec714eb368dd06642c9bbc

SHA512
9919a9e848c8f1e26c75d0d29207571e4b86a4140bd554743d2c1f8bd7f386fe4919345b163d89a5d907fb165e435ba0ac5f6b1101713636141f156a420e2e0f

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\Users\Admin\AppData\Local\Temp\nsi3D01.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
a2a6e2fe649d7df57bc7c53c43b70d8d

SHA1
8909dccd63e93d13be0d7d2d13fc18213cd2fce0

SHA256
a64aa3eeeb7916ad2bcaa43b58394636ca74f29403fd667a2d370d2710858fe2

SHA512
afa67804416104160c3c5f9ebe45d4adbf25f6cb85a65ac20c08918e6e67939105173a25a83f7191c4dcfc7a9d26db1edc6cacd42e1c6c70ec1a35b62e07ba69

Download Submit