1791d745c5825b29a98920d891de282e30aacc1eadafbe1dd0cb40a54ede7520

Analysis

max time kernel
141s
max time network
108s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
16/05/2024, 10:48

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

uninst.exe
Size

349KB
MD5

d0ed286059c85e7e9ec784ddf7e5fd33
SHA1

a3b097f9bcf12275090006ac6cea911dd9093955
SHA256

ded8877a01845e29b5f95c68e00aef11e6f09cd478e1a2500995a2b941949305
SHA512

b316a87bb9ad8bee0574f704123b248a58a504bc48cf4162626e44d2e969e05727cbc70342964763cd24f54f82e7b79ac18247a3e8f7618919a3659faeafe36a
SSDEEP

6144:Se34coZpAWSsvq8t7Z+n9pGnVoUc99F9ZB4a34QqjGk:K+WzJsGnGxF9b4+0

Score

6^/10

bootkit persistence

Malware Config

Signatures

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	snqxz.exe

Deletes itself 1 IoCs

pid	Process
2684	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
2684	Au_.exe

Loads dropped DLL 2 IoCs

pid	Process
2684	Au_.exe
2684	Au_.exe

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

System Information Discovery
T1082

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral18/files/0x0007000000023420-3.dat	nsis_installer_1
behavioral18/files/0x0007000000023420-3.dat	nsis_installer_2

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
2684	Au_.exe
2684	Au_.exe
3876	snqxz.exe
3876	snqxz.exe
3876	snqxz.exe
3876	snqxz.exe
3876	snqxz.exe
3876	snqxz.exe
3876	snqxz.exe
3876	snqxz.exe
3876	snqxz.exe
3876	snqxz.exe
3876	snqxz.exe
3876	snqxz.exe
3876	snqxz.exe
3876	snqxz.exe
3876	snqxz.exe
3876	snqxz.exe
3876	snqxz.exe
3876	snqxz.exe
3876	snqxz.exe
3876	snqxz.exe
3876	snqxz.exe
3876	snqxz.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3088 wrote to memory of 2684	3088	uninst.exe	83
PID 3088 wrote to memory of 2684	3088	uninst.exe	83
PID 3088 wrote to memory of 2684	3088	uninst.exe	83
PID 2684 wrote to memory of 3876	2684	Au_.exe	95
PID 2684 wrote to memory of 3876	2684	Au_.exe	95
PID 2684 wrote to memory of 3876	2684	Au_.exe	95

C:\Users\Admin\AppData\Local\Temp\uninst.exe
"C:\Users\Admin\AppData\Local\Temp\uninst.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3088
- 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
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2684
- - C:\Users\Admin\AppData\Local\Temp\snqxz.exe
    "C:\Users\Admin\AppData\Local\Temp\snqxz.exe" /uninstallsucc
    3⤵
    - Writes to the Master Boot Record (MBR)
    - Suspicious behavior: EnumeratesProcesses
    PID:3876

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

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\nsa6199.tmp\FindProcDLL.dll

Filesize
3KB

MD5
8614c450637267afacad1645e23ba24a

SHA1
e7b7b09b5bbc13e910aa36316d9cc5fc5d4dcdc2

SHA256
0fa04f06a6de18d316832086891e9c23ae606d7784d5d5676385839b21ca2758

SHA512
af46cd679097584ff9a1d894a729b6397f4b3af17dff3e6f07bef257bc7e48ffa341d82daf298616cd5df1450fc5ab7435cacb70f27302b6db193f01a9f8391b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsa6199.tmp\inetc.dll

Filesize
20KB

MD5
c498ae64b4971132bba676873978de1e

SHA1
92e4009cd776b6c8616d8bffade7668ef3cb3c27

SHA256
5552bdde7e4113393f683ef501e4cc84dccc071bdc51391ea7fa3e7c1d49e4e8

SHA512
8e5ca35493f749a39ceae6796d2658ba10f7d8d9ceca45bb4365b338fabd1dfa9b9f92e33f50c91b0273e66adfbce4b98b09c15fd2473f8b214ed797462333d7

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

Filesize
349KB

MD5
d0ed286059c85e7e9ec784ddf7e5fd33

SHA1
a3b097f9bcf12275090006ac6cea911dd9093955

SHA256
ded8877a01845e29b5f95c68e00aef11e6f09cd478e1a2500995a2b941949305

SHA512
b316a87bb9ad8bee0574f704123b248a58a504bc48cf4162626e44d2e969e05727cbc70342964763cd24f54f82e7b79ac18247a3e8f7618919a3659faeafe36a

Download Submit
memory/2684-10-0x0000000010000000-0x0000000010003000-memory.dmp

Filesize
12KB

Download