dbfed511c8367ee64ad6f2d15a6de75bf5f0f911c848edf971d809a4ef81a872

General

Target

c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe
Size

5.3MB
MD5

8ef5332fdb6ef8626ba63cfcf716370f
SHA1

482f1cd74f401a545a62a2f0bac89ee37f103627
SHA256

c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479
SHA512

451492c1f80828022a989ef4d77b79ad42736d23db150123cc21c5ffff6aebd3b78853399bd293d97cbeca2fc499bb15a7ccb5c6805e535214f0a23a75763c2e

Score

6^/10

bootkit persistence

Malware Config

Signatures

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
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

Processes:

c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe

description ioc process

File opened for modification \??\PhysicalDrive0 c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe

pid	process
3628	c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe
3628	c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe
3628	c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe
3628	c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe

description pid process

Token: SeDebugPrivilege 3628 c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe

pid process

3628 c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe

description	pid	process
Token: SeDebugPrivilege	3628	c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

Processes:

c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Associations	c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Associations\LowRiskFileTypes = ".exe;.bat;.cmd;.vbs"	c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe

C:\Users\Admin\AppData\Local\Temp\c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe
"C:\Users\Admin\AppData\Local\Temp\c8d812a4a9ec2752837025781d4b21ccb499f7323e7d4e5a1c4a25804c57a479.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- System policy modification
PID:3628

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Bootkit

1

T1067

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1

T1102

Impact

Replay Monitor

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Downloads

memory/3628-114-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/3628-116-0x00000000050F0000-0x0000000005122000-memory.dmp

Filesize
200KB

Download
memory/3628-117-0x00000000099D0000-0x00000000099D1000-memory.dmp

Filesize
4KB

Download
memory/3628-118-0x0000000005170000-0x0000000005171000-memory.dmp

Filesize
4KB

Download
memory/3628-119-0x0000000005220000-0x0000000005221000-memory.dmp

Filesize
4KB

Download
memory/3628-120-0x00000000052D0000-0x00000000052D1000-memory.dmp

Filesize
4KB

Download
memory/3628-121-0x0000000005173000-0x0000000005175000-memory.dmp

Filesize
8KB

Download
memory/3628-122-0x0000000005175000-0x0000000005176000-memory.dmp

Filesize
4KB

Download

Analysis

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