57ee422700540495b397e7ca2a17679d476a6037129eafca1e481a597d2109f0

Analysis

max time kernel
94s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
03-06-2024 02:30

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General

Target

57ee422700540495b397e7ca2a17679d476a6037129eafca1e481a597d2109f0.exe
Size

3.4MB
MD5

3cb0424b7e21660f71b8fd42580a43bc
SHA1

b7e13a6f3ad06b783a9dde26ad697befe60c9b99
SHA256

57ee422700540495b397e7ca2a17679d476a6037129eafca1e481a597d2109f0
SHA512

c80991ec60e986aa00aa572c8c1bf9bc423c404bc7a5d707c51d049db8928f3916711f77d8ca05e4632b18c9476beec870d26970501cbbd969b827e91924c386
SSDEEP

49152:NEjEamQb2OguN8Dfk5JEG14wv2QwnN4iTapOcaPKfjtD8cEOxeuxzS2hPV5T1gWX:NEjlmQbfgSgwvSnN4iVJui0xaiWosoqC

Score

7^/10

bootkit persistence

Malware Config

Signatures

Loads dropped DLL 1 IoCs

Processes:

57ee422700540495b397e7ca2a17679d476a6037129eafca1e481a597d2109f0.exe

pid process

2896 57ee422700540495b397e7ca2a17679d476a6037129eafca1e481a597d2109f0.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:

57ee422700540495b397e7ca2a17679d476a6037129eafca1e481a597d2109f0.exe

description ioc process

File opened (read-only) \??\F: 57ee422700540495b397e7ca2a17679d476a6037129eafca1e481a597d2109f0.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:

57ee422700540495b397e7ca2a17679d476a6037129eafca1e481a597d2109f0.exe

description ioc process

File opened for modification \??\PhysicalDrive0 57ee422700540495b397e7ca2a17679d476a6037129eafca1e481a597d2109f0.exe

description	ioc	process
File opened (read-only)	\??\F:	57ee422700540495b397e7ca2a17679d476a6037129eafca1e481a597d2109f0.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	57ee422700540495b397e7ca2a17679d476a6037129eafca1e481a597d2109f0.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

57ee422700540495b397e7ca2a17679d476a6037129eafca1e481a597d2109f0.exe

pid	process
2896	57ee422700540495b397e7ca2a17679d476a6037129eafca1e481a597d2109f0.exe
2896	57ee422700540495b397e7ca2a17679d476a6037129eafca1e481a597d2109f0.exe

C:\Users\Admin\AppData\Local\Temp\57ee422700540495b397e7ca2a17679d476a6037129eafca1e481a597d2109f0.exe
"C:\Users\Admin\AppData\Local\Temp\57ee422700540495b397e7ca2a17679d476a6037129eafca1e481a597d2109f0.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
PID:2896

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

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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