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

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

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 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

Loading Replay Monitor...

Downloads

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

Filesize
14KB

MD5
325b008aec81e5aaa57096f05d4212b5

SHA1
27a2d89747a20305b6518438eff5b9f57f7df5c3

SHA256
c9cd5c9609e70005926ae5171726a4142ffbcccc771d307efcd195dafc1e6b4b

SHA512
18362b3aee529a27e85cc087627ecf6e2d21196d725f499c4a185cb3a380999f43ff1833a8ebec3f5ba1d3a113ef83185770e663854121f2d8b885790115afdf

Download Submit
C:\Users\Admin\AppData\Local\Temp\nssA605.tmp\ioSpecial.ini

Filesize
538B

MD5
dfb7e7195499de8ffef7cdc8bc674602

SHA1
de439c8d0d8a5c32a1dce87ccc36cd44d8c1964f

SHA256
3740709e00dbfbe56880055fbce6aafc86568451b468c40e1eab56e11a512134

SHA512
578e3079a01e15e0c3888bdb4dc24c1f761eabefb752241dcdcaae36042905867610cdb27519942584dd64ab3db14360c1631c726e429cbd48f547abc5d741da

Download Submit
C:\Users\Admin\AppData\Local\Temp\nssA605.tmp\ioSpecial.ini

Filesize
579B

MD5
70ec4b19b66f3dd4c5b1a44bf03d0cd8

SHA1
507cf95a63eafca980d4ff19c3e23b43bcb79dbd

SHA256
ebd9134fce140daee3af5c6638c844766d4a0e60cc898258f1c696707ae3a316

SHA512
747e545e0c03a7ff3d4d7c4523d65e0be51a2acca68f231995196c3046e994c681d70353ee00831f5378500bc2e736044ac675edcb50324c4d720b904d8f0692

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

Filesize
56KB

MD5
bffa504cd63305418858b150faa8f408

SHA1
86886fd2378aa33935cf684f056454859713aed4

SHA256
d00f8bf2eaa1994b0064d7b14fc987b0aab9b3c440a4177257ee2d3217fe6d3b

SHA512
6b8958a4ccffce02ba8e4390f66121a02116e2b2ef9c4baa2eea62b8acfe380d0c0dd5e773f83b7062467a34019612d3f8a531e1a4ffcefb769de964cbf02019

Download Submit