212689dd6b767a3b00e39654a03b3b8df7d50fdfbb00b139c7a697e4bdf1b6a6

Analysis

max time kernel
21s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19/06/2024, 16:40

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General

Target

trichloromethane.exe
Size

120KB
MD5

5e8ce90547acca8bd050fccb885558a2
SHA1

a65ca5ddbcabeca7a5b9a243131bf8ce6798e15a
SHA256

2829a026d0c7f6ca2fcba66eeef48606c3307312898fefef8af269dcb2158155
SHA512

ac4aace898b8fa9037590edcce478c649aed9daf4d7fc2285f045aecf0f86d25a69903b1458b96964f6f7e9d4fb8f79ce923896b5ff84008f9f32bf86ff11d8f
SSDEEP

3072:87Vs+B4vSgLkgjIldksHYfYjbyKK03T9zqKyM:24vSuKXHtl

Score

8^/10

bootkit evasion persistence

Malware Config

Signatures

Disables Task Manager via registry modification
evasion

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	trichloromethane.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
3048	reg.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3008 wrote to memory of 2208	3008	trichloromethane.exe	28
PID 3008 wrote to memory of 2208	3008	trichloromethane.exe	28
PID 3008 wrote to memory of 2208	3008	trichloromethane.exe	28
PID 3008 wrote to memory of 2208	3008	trichloromethane.exe	28
PID 2208 wrote to memory of 3048	2208	cmd.exe	30
PID 2208 wrote to memory of 3048	2208	cmd.exe	30
PID 2208 wrote to memory of 3048	2208	cmd.exe	30
PID 2208 wrote to memory of 3048	2208	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\trichloromethane.exe
"C:\Users\Admin\AppData\Local\Temp\trichloromethane.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
PID:3008
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c REG ADD hkcu\Software\Microsoft\Windows\CurrentVersion\policies\system /v DisableTaskMgr /t reg_dword /d 1 /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2208
- - C:\Windows\SysWOW64\reg.exe
    REG ADD hkcu\Software\Microsoft\Windows\CurrentVersion\policies\system /v DisableTaskMgr /t reg_dword /d 1 /f
    3⤵
    - Modifies registry key
    PID:3048

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads