04732128b7057cc1c8f8ae18b36fedd62d91f015bb5c73ec6020507d467a1c64

Analysis

max time kernel
134s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 22:43

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General

Target

04732128b7057cc1c8f8ae18b36fedd62d91f015bb5c73ec6020507d467a1c64.exe
Size

3.5MB
MD5

02b57782159b39cbdcea2f6236ca60d2
SHA1

910ed6cd32b9fa278eff0db51f41658a82bb7336
SHA256

04732128b7057cc1c8f8ae18b36fedd62d91f015bb5c73ec6020507d467a1c64
SHA512

8498e564fd11c0d7b7742ab44294dd813ff2f3a70982223d4785736d027562d846487a5737afd7e61856c734b86640eaae76b5693c88ab5015b07c7d0ba83197
SSDEEP

49152:CEjEamQb2OguN8Dfk5JEG14wv2QwnN4iTapOcaPKfjtD8cEOxeuxzS2hPV5T1gWy:CEjlmQbfgSgwvSnN4iVJuF0xfreseq9

Score

7^/10

bootkit persistence

Malware Config

Signatures

Loads dropped DLL 1 IoCs

Processes:

04732128b7057cc1c8f8ae18b36fedd62d91f015bb5c73ec6020507d467a1c64.exe

pid process

4492 04732128b7057cc1c8f8ae18b36fedd62d91f015bb5c73ec6020507d467a1c64.exe
Enumerates connected drives 3 TTPs 1 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

Processes:

04732128b7057cc1c8f8ae18b36fedd62d91f015bb5c73ec6020507d467a1c64.exe

description ioc process

File opened (read-only) \??\F: 04732128b7057cc1c8f8ae18b36fedd62d91f015bb5c73ec6020507d467a1c64.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
T1542.003

Processes:

04732128b7057cc1c8f8ae18b36fedd62d91f015bb5c73ec6020507d467a1c64.exe

description ioc process

File opened for modification \??\PhysicalDrive0 04732128b7057cc1c8f8ae18b36fedd62d91f015bb5c73ec6020507d467a1c64.exe

description	ioc	process
File opened (read-only)	\??\F:	04732128b7057cc1c8f8ae18b36fedd62d91f015bb5c73ec6020507d467a1c64.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	04732128b7057cc1c8f8ae18b36fedd62d91f015bb5c73ec6020507d467a1c64.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

04732128b7057cc1c8f8ae18b36fedd62d91f015bb5c73ec6020507d467a1c64.exe

pid	process
4492	04732128b7057cc1c8f8ae18b36fedd62d91f015bb5c73ec6020507d467a1c64.exe
4492	04732128b7057cc1c8f8ae18b36fedd62d91f015bb5c73ec6020507d467a1c64.exe

C:\Users\Admin\AppData\Local\Temp\04732128b7057cc1c8f8ae18b36fedd62d91f015bb5c73ec6020507d467a1c64.exe
"C:\Users\Admin\AppData\Local\Temp\04732128b7057cc1c8f8ae18b36fedd62d91f015bb5c73ec6020507d467a1c64.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
PID:4492

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Tencent\TxGameAssistant\TGBDownloader\dr.dll
Filesize
74KB

MD5
2814acbd607ba47bdbcdf6ac3076ee95

SHA1
50ab892071bed2bb2365ca1d4bf5594e71c6b13b

SHA256
5904a7e4d97eeac939662c3638a0e145f64ff3dd0198f895c4bf0337595c6a67

SHA512
34c73014ffc8d38d6dd29f4f84c8f4f9ea971bc131f665f65b277f453504d5efc2d483a792cdea610c5e0544bf3997b132dcdbe37224912c5234c15cdb89d498

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