ffaa6ae5e499945093a6fe2a7a05504f8796127cd6f4de239b47a7e86715214c

Analysis

max time kernel
90s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
13-02-2024 06:06

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General

Target

SAMPUninstall.exe
Size

56KB
MD5

bffa504cd63305418858b150faa8f408
SHA1

86886fd2378aa33935cf684f056454859713aed4
SHA256

d00f8bf2eaa1994b0064d7b14fc987b0aab9b3c440a4177257ee2d3217fe6d3b
SHA512

6b8958a4ccffce02ba8e4390f66121a02116e2b2ef9c4baa2eea62b8acfe380d0c0dd5e773f83b7062467a34019612d3f8a531e1a4ffcefb769de964cbf02019
SSDEEP

1536:HLXB65939tY6HBg4sXJOgdLeAyN/dIM6su:HLk395hYXJOceAlMM

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

Processes:

Au_.exe

pid process

2192 Au_.exe
Executes dropped EXE 1 IoCs

Processes:

Au_.exe

pid process

2192 Au_.exe
Loads dropped DLL 1 IoCs

Processes:

Au_.exe

pid process

2192 Au_.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2192	Au_.exe

pid	process
2192	Au_.exe

pid	process
2192	Au_.exe

NSIS installer 2 IoCs

installer

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe	nsis_installer_1
C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe	nsis_installer_2

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

SAMPUninstall.exe

description	pid	process	target process
PID 2540 wrote to memory of 2192	2540	SAMPUninstall.exe	Au_.exe
PID 2540 wrote to memory of 2192	2540	SAMPUninstall.exe	Au_.exe
PID 2540 wrote to memory of 2192	2540	SAMPUninstall.exe	Au_.exe

C:\Users\Admin\AppData\Local\Temp\SAMPUninstall.exe
"C:\Users\Admin\AppData\Local\Temp\SAMPUninstall.exe"
1⤵
- 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\
2⤵
- Deletes itself
- Executes dropped EXE
- Loads dropped DLL
PID:2192

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nssA605.tmp\InstallOptions.dll
Filesize
14KB

MD5
325b008aec81e5aaa57096f05d4212b5

SHA1
27a2d89747a20305b6518438eff5b9f57f7df5c3

SHA256
c9cd5c9609e70005926ae5171726a4142ffbcccc771d307efcd195dafc1e6b4b

SHA512
18362b3aee529a27e85cc087627ecf6e2d21196d725f499c4a185cb3a380999f43ff1833a8ebec3f5ba1d3a113ef83185770e663854121f2d8b885790115afdf

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C:\Users\Admin\AppData\Local\Temp\nssA605.tmp\ioSpecial.ini
Filesize
538B

MD5
dfb7e7195499de8ffef7cdc8bc674602

SHA1
de439c8d0d8a5c32a1dce87ccc36cd44d8c1964f

SHA256
3740709e00dbfbe56880055fbce6aafc86568451b468c40e1eab56e11a512134

SHA512
578e3079a01e15e0c3888bdb4dc24c1f761eabefb752241dcdcaae36042905867610cdb27519942584dd64ab3db14360c1631c726e429cbd48f547abc5d741da

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C:\Users\Admin\AppData\Local\Temp\nssA605.tmp\ioSpecial.ini
Filesize
579B

MD5
70ec4b19b66f3dd4c5b1a44bf03d0cd8

SHA1
507cf95a63eafca980d4ff19c3e23b43bcb79dbd

SHA256
ebd9134fce140daee3af5c6638c844766d4a0e60cc898258f1c696707ae3a316

SHA512
747e545e0c03a7ff3d4d7c4523d65e0be51a2acca68f231995196c3046e994c681d70353ee00831f5378500bc2e736044ac675edcb50324c4d720b904d8f0692

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C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
Filesize
56KB

MD5
bffa504cd63305418858b150faa8f408

SHA1
86886fd2378aa33935cf684f056454859713aed4

SHA256
d00f8bf2eaa1994b0064d7b14fc987b0aab9b3c440a4177257ee2d3217fe6d3b

SHA512
6b8958a4ccffce02ba8e4390f66121a02116e2b2ef9c4baa2eea62b8acfe380d0c0dd5e773f83b7062467a34019612d3f8a531e1a4ffcefb769de964cbf02019

Download Submit