af7fd48a420ff79f1cd8079f11e85c62053b1e75a302c4bb846a3732a875e5ab

Analysis

max time kernel
54s
max time network
50s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
25/11/2022, 19:51

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General

Target

af7fd48a420ff79f1cd8079f11e85c62053b1e75a302c4bb846a3732a875e5ab.exe
Size

650KB
MD5

ac1a2ce06f7961a80b1323ded7403435
SHA1

97c5489b1abdbe7c3aa994fba7e55e22a43180e2
SHA256

af7fd48a420ff79f1cd8079f11e85c62053b1e75a302c4bb846a3732a875e5ab
SHA512

47f476b2b17c0d254277e5af811141588dd8d9f5edd4cbb2e3b36c927173060209438cc98e584bd0f923dc45eecd90841cb8c06b3a0a755b845b325dea490d4e
SSDEEP

12288:TDBDrRvl1ExbmotxmBEQwHEv8R0xOI4Hyrsp6/quh:TlHZLEx1txmeC74+j/quh

Score

7^/10

bootkit persistence

Malware Config

Signatures

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	af7fd48a420ff79f1cd8079f11e85c62053b1e75a302c4bb846a3732a875e5ab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	af7fd48a420ff79f1cd8079f11e85c62053b1e75a302c4bb846a3732a875e5ab.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

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	af7fd48a420ff79f1cd8079f11e85c62053b1e75a302c4bb846a3732a875e5ab.exe

C:\Users\Admin\AppData\Local\Temp\af7fd48a420ff79f1cd8079f11e85c62053b1e75a302c4bb846a3732a875e5ab.exe
"C:\Users\Admin\AppData\Local\Temp\af7fd48a420ff79f1cd8079f11e85c62053b1e75a302c4bb846a3732a875e5ab.exe"
1⤵
- Checks BIOS information in registry
- Writes to the Master Boot Record (MBR)
PID:1296

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1296-54-0x00000000756B1000-0x00000000756B3000-memory.dmp

Filesize
8KB

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