98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6

Analysis

max time kernel
293s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
18-04-2024 22:56

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General

Target

98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe
Size

641KB
MD5

a0da33ce20d47166aa47fa196dd013d8
SHA1

0bc6d9dc087ff9a3ef65d99aef0cdbe989a5d436
SHA256

98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6
SHA512

9b98a7d2c47c745dff5325089c748314f232595121f9cd2d9f440a5cfb3cb3e0a7cd86fb5bd82f3e62fc1cd79489629091fec518333c4711cea3563da3888931
SSDEEP

12288:Kmj43pycq2QOP8cJNMqFWcFuXzNU40U7MniiSNis:Kr3pW2QOPrJbFWc4XhkUEcNX

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

Processes:

98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe

description ioc process

File opened for modification \??\PHYSICALDRIVE0 98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe

description	ioc	process
File opened for modification	\??\PHYSICALDRIVE0	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe

description	pid	process	target process
PID 2292 set thread context of 2264	2292	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe

description	pid	process	target process
PID 2292 wrote to memory of 2264	2292	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe
PID 2292 wrote to memory of 2264	2292	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe
PID 2292 wrote to memory of 2264	2292	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe
PID 2292 wrote to memory of 2264	2292	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe
PID 2292 wrote to memory of 2264	2292	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe
PID 2292 wrote to memory of 2264	2292	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe
PID 2292 wrote to memory of 2264	2292	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe
PID 2292 wrote to memory of 2264	2292	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe
PID 2292 wrote to memory of 2264	2292	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe
PID 2292 wrote to memory of 2264	2292	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe	98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe

C:\Users\Admin\AppData\Local\Temp\98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe
"C:\Users\Admin\AppData\Local\Temp\98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2292

C:\Users\Admin\AppData\Local\Temp\98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe
"C:\Users\Admin\AppData\Local\Temp\98c85e3d7d263c54792d80bc4b29a55108fc380345ef1cc20d39bb2b192741a6.exe"
2⤵
- Writes to the Master Boot Record (MBR)
PID:2264

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

memory/2264-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2264-5-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2264-7-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2264-8-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2264-9-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2264-10-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2264-11-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2292-1-0x0000000002D80000-0x0000000002E80000-memory.dmp

Filesize
1024KB

Download
memory/2292-4-0x0000000000320000-0x000000000038B000-memory.dmp

Filesize
428KB

Download