20fe8c3acf6cb29ec1c4300c4f26ad5c20ee969b62f0a1966b6f31d8b91ac87b

Analysis

max time kernel
142s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/12/2023, 11:38

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General

Target

1b6a864d579071e226bc87a3a8ac974f.exe
Size

1.1MB
MD5

1b6a864d579071e226bc87a3a8ac974f
SHA1

02e8bb270d8d8e1b3113f4ba312b90ee51ff47c5
SHA256

20fe8c3acf6cb29ec1c4300c4f26ad5c20ee969b62f0a1966b6f31d8b91ac87b
SHA512

c2329cea710cdcec57ff80049baf7eb6822ad107717ae61911f60ec2bb77a77f4fdaf47f8fee579e20a60df1808f3c17f8428c2e333d8fdad956caa696e219b6
SSDEEP

24576:hIVFIm/3KoYUvprBlsZWLlg9uRhi5N2ntT1uWEe/EyU:iKhEVBlsZWL6+hNtT0Wl/Eh

Score

7^/10

bootkit persistence

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0007000000023215-4.dat	acprotect

Loads dropped DLL 4 IoCs

pid	Process
2904	1b6a864d579071e226bc87a3a8ac974f.exe
2904	1b6a864d579071e226bc87a3a8ac974f.exe
2904	1b6a864d579071e226bc87a3a8ac974f.exe
3624	WerFault.exe

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	1b6a864d579071e226bc87a3a8ac974f.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3624	2904	WerFault.exe	16

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeManageVolumePrivilege	2904	1b6a864d579071e226bc87a3a8ac974f.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2904	1b6a864d579071e226bc87a3a8ac974f.exe

C:\Users\Admin\AppData\Local\Temp\1b6a864d579071e226bc87a3a8ac974f.exe
"C:\Users\Admin\AppData\Local\Temp\1b6a864d579071e226bc87a3a8ac974f.exe"
1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2904
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2904 -s 624
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:3624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2904 -ip 2904
1⤵
PID:3184

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\3608C0F.tmp360net.dll

Filesize
53KB

MD5
400370e02fdcb2baaa9420e4cdc88916

SHA1
2194248a77f3e06558d8576f76078963f29c2c1e

SHA256
093147cacd4ff5b8777dd9802738955a9812add0b7bcfae022aa5ad11f06340d

SHA512
1a45db6da425373097e3df03baf17e29a6135fc92acafca075995abe0586baabad93f61936b7217c9da19fc12d3bf16f934cf0f3c03ed808a3773ae45e192212

Download Submit
C:\Users\Admin\AppData\Local\Temp\oki6590.tmp

Filesize
172KB

MD5
685f1cbd4af30a1d0c25f252d399a666

SHA1
6a1b978f5e6150b88c8634146f1406ed97d2f134

SHA256
0e478c95a7a07570a69e6061e7c1da9001bccad9cc454f2ed4da58824a13e0f4

SHA512
6555ad6b4f4f26105ca8aad64501d74519a3e091f559b4b563d6ffb20a2ddfcde65e4fe94971a9bc65e86db577f2548ca00f9920d341c8ea808b04c0947d61d9

Download Submit
memory/2904-0-0x0000000000400000-0x0000000000529000-memory.dmp

Filesize
1.2MB

Download
memory/2904-8-0x0000000002310000-0x0000000002383000-memory.dmp

Filesize
460KB

Download
memory/2904-7-0x0000000002310000-0x0000000002383000-memory.dmp

Filesize
460KB

Download
memory/2904-9-0x0000000002310000-0x0000000002383000-memory.dmp

Filesize
460KB

Download
memory/2904-11-0x0000000000400000-0x0000000000529000-memory.dmp

Filesize
1.2MB

Download
memory/2904-24-0x0000000002310000-0x0000000002383000-memory.dmp

Filesize
460KB

Download
memory/2904-31-0x0000000000400000-0x0000000000529000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads