e851b2cfdec4abcb1b2e3b2a0f557d10c431fd5bf62bbcf42e3e0cd9ddda89d5

Analysis

max time kernel
117s
max time network
120s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25/01/2024, 11:27

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General

Target

$0/uninstall.exe
Size

78KB
MD5

73923e6e19876be827ba4db3ce7006b0
SHA1

cb1feea6b3da6054040a382d9e4c9afa2b72433c
SHA256

be9437114b5cbc12ab184a18c7950c9a7e38f5b3a7de983348f174e4e8fc27b1
SHA512

5e65bedb1b8e104a9aa17f2d70d7d6d06d89a9974bc0a9d4f9595139105a5cb84ca60757eda1ff4b3551a104dddfd401942afb207304bb5e97f90068e46a9fc9
SSDEEP

1536:PEkjY1zy214Qay0DGkJ7qAELVigJPcpNJ/dhYqqLxJ2/Do:8kjAJ4dDGkJ+AI0xzJ/dOq5/E

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2452	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
1656	uninstall.exe
2452	Au_.exe
2452	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/0x0009000000012266-2.dat	nsis_installer_1

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2452	Au_.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1656 wrote to memory of 2452	1656	uninstall.exe	28
PID 1656 wrote to memory of 2452	1656	uninstall.exe	28
PID 1656 wrote to memory of 2452	1656	uninstall.exe	28
PID 1656 wrote to memory of 2452	1656	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:1656
- 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:2452

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\nsd4F78.tmp\ioSpecial.ini

Filesize
697B

MD5
67cf9c50962b4b16bba42c835bcfaf82

SHA1
0d0aca2d0df0d82cfcb1e98d44a35b059927ac89

SHA256
ac6b167f10a94383834154a78a1c7af55fe7a66a54403afd66139a7f4b05540a

SHA512
3b7930047c0f2ef5770380b6b0282dd4655dff9eec050519aa3be8a55dc49631eed8372a5cadc63c1ec896281aa5922152b6bf38c08210435762ad7f199e457d

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\Users\Admin\AppData\Local\Temp\nsd4F78.tmp\InstallOptions.dll

Filesize
13KB

MD5
d765c492c21689e3d9d61634371fd861

SHA1
ac200933671ae52c9d5544d0e2e8e9144d286c83

SHA256
551e6042dd494ea01549555ffc194ab9729da09058ec714eb368dd06642c9bbc

SHA512
9919a9e848c8f1e26c75d0d29207571e4b86a4140bd554743d2c1f8bd7f386fe4919345b163d89a5d907fb165e435ba0ac5f6b1101713636141f156a420e2e0f

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\Users\Admin\AppData\Local\Temp\nsd4F78.tmp\System.dll

Filesize
10KB

MD5
fe24766ba314f620d57d0cf7339103c0

SHA1
8641545f03f03ff07485d6ec4d7b41cbb898c269

SHA256
802ef71440f662f456bed6283a5ff78066af016897fe6bfd29cac6edc2967bbd

SHA512
60d36959895cebf29c4e7713e6d414980139c7aa4ed1c8c96fefb672c1263af0ce909fb409534355895649c0e8056635112efb0da2ba05694446aec2ca77e2e3

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

Filesize
78KB

MD5
73923e6e19876be827ba4db3ce7006b0

SHA1
cb1feea6b3da6054040a382d9e4c9afa2b72433c

SHA256
be9437114b5cbc12ab184a18c7950c9a7e38f5b3a7de983348f174e4e8fc27b1

SHA512
5e65bedb1b8e104a9aa17f2d70d7d6d06d89a9974bc0a9d4f9595139105a5cb84ca60757eda1ff4b3551a104dddfd401942afb207304bb5e97f90068e46a9fc9

Download Submit