672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
27-08-2023 08:08

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General

Target

672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe
Size

676KB
MD5

2ab765da96e5e7d082f3cd11be081654
SHA1

897f7919c3577a95dbd3d7ba0633f87cdf0ba4f5
SHA256

672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9
SHA512

f892d367ed546c948001ba0a214011b13faa35b2ab11f09ae4ea02c4d0be31025201524a38ea56ab3f249a517b49edf3dffef6899bbfd33eab12aa3845dd2d03
SSDEEP

6144:z5+wzHywOv9sn4OwB7p+S+Wo89UNS8VuiIWUlhxcGsZ0yO1g/rTDAsldDapA3qkq:z5+wjsyn4OwF0S3ninUXgA1OrHNl0n

Score

6^/10

bootkit persistence

Malware Config

Signatures

Enumerates connected drives 3 TTPs 4 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\F:	format.com
File opened (read-only)	\??\D:	format.com
File opened (read-only)	\??\E:	format.com
File opened (read-only)	\??\G:	format.com

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	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeBackupPrivilege	1520	format.com
Token: SeBackupPrivilege	2268	format.com

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe
2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 2788 wrote to memory of 1676	2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe	28
PID 2788 wrote to memory of 1676	2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe	28
PID 2788 wrote to memory of 1676	2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe	28
PID 2788 wrote to memory of 1676	2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe	28
PID 2788 wrote to memory of 2316	2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe	29
PID 2788 wrote to memory of 2316	2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe	29
PID 2788 wrote to memory of 2316	2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe	29
PID 2788 wrote to memory of 2316	2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe	29
PID 2788 wrote to memory of 2444	2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe	37
PID 2788 wrote to memory of 2444	2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe	37
PID 2788 wrote to memory of 2444	2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe	37
PID 2788 wrote to memory of 2444	2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe	37
PID 2788 wrote to memory of 2068	2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe	30
PID 2788 wrote to memory of 2068	2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe	30
PID 2788 wrote to memory of 2068	2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe	30
PID 2788 wrote to memory of 2068	2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe	30
PID 2788 wrote to memory of 2212	2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe	33
PID 2788 wrote to memory of 2212	2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe	33
PID 2788 wrote to memory of 2212	2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe	33
PID 2788 wrote to memory of 2212	2788	672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe	33
PID 2316 wrote to memory of 2280	2316	cmd.exe	38
PID 2316 wrote to memory of 2280	2316	cmd.exe	38
PID 2316 wrote to memory of 2280	2316	cmd.exe	38
PID 2316 wrote to memory of 2280	2316	cmd.exe	38
PID 2068 wrote to memory of 1520	2068	cmd.exe	42
PID 2068 wrote to memory of 1520	2068	cmd.exe	42
PID 2068 wrote to memory of 1520	2068	cmd.exe	42
PID 2068 wrote to memory of 1520	2068	cmd.exe	42
PID 1676 wrote to memory of 2268	1676	cmd.exe	41
PID 1676 wrote to memory of 2268	1676	cmd.exe	41
PID 1676 wrote to memory of 2268	1676	cmd.exe	41
PID 1676 wrote to memory of 2268	1676	cmd.exe	41
PID 2444 wrote to memory of 2948	2444	cmd.exe	40
PID 2444 wrote to memory of 2948	2444	cmd.exe	40
PID 2444 wrote to memory of 2948	2444	cmd.exe	40
PID 2444 wrote to memory of 2948	2444	cmd.exe	40
PID 2212 wrote to memory of 2900	2212	cmd.exe	39
PID 2212 wrote to memory of 2900	2212	cmd.exe	39
PID 2212 wrote to memory of 2900	2212	cmd.exe	39
PID 2212 wrote to memory of 2900	2212	cmd.exe	39

C:\Users\Admin\AppData\Local\Temp\672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe
"C:\Users\Admin\AppData\Local\Temp\672cfd7ff738e393eef880a9b878ca44d291898e93299de854e498b84b0b6fd9.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2788
- C:\Windows\SysWOW64\cmd.exe
  cmd /c format c: /q /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1676
- - C:\Windows\SysWOW64\format.com
    format c: /q /y
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2268
- C:\Windows\SysWOW64\cmd.exe
  cmd /c format d: /q /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2316
- - C:\Windows\SysWOW64\format.com
    format d: /q /y
    3⤵
    - Enumerates connected drives
    PID:2280
- C:\Windows\SysWOW64\cmd.exe
  cmd /c format f: /q /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2068
- - C:\Windows\SysWOW64\format.com
    format f: /q /y
    3⤵
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    PID:1520
- C:\Windows\SysWOW64\cmd.exe
  cmd /c format g: /q /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2212
- - C:\Windows\SysWOW64\format.com
    format g: /q /y
    3⤵
    - Enumerates connected drives
    PID:2900
- C:\Windows\SysWOW64\cmd.exe
  cmd /c format e: /q /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2444
- - C:\Windows\SysWOW64\format.com
    format e: /q /y
    3⤵
    - Enumerates connected drives
    PID:2948

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

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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