75f3cc169020d986ca557134fc35d613831a62f31ea6042decf0229dc2d0a22b

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
24-05-2024 05:09

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General

Target

75f3cc169020d986ca557134fc35d613831a62f31ea6042decf0229dc2d0a22b.exe
Size

3.4MB
MD5

0cef5157cd3ba2ce9d78191f00207418
SHA1

1c767132075e6c0ea02decba489d2088750d7ad3
SHA256

75f3cc169020d986ca557134fc35d613831a62f31ea6042decf0229dc2d0a22b
SHA512

ef3f487f458bb40c62f7db393ae1c9ad8c26e596c13911c6d25920db04b3979f4c0b88d2ff0b50adb01548d46c6197d8e11737c8927d77c96075382ed9862aa6
SSDEEP

49152:gEjEamQb2OguN8Dfk5JEG14wv2QwnN4iTapOcaPKfjtD8cEOxeuxzS2hPV5T1gWA:gEjlmQbfgSgwvSnN4iVJuS0xJdzYUqJ

Score

7^/10

bootkit persistence

Malware Config

Signatures

Loads dropped DLL 1 IoCs

Processes:

75f3cc169020d986ca557134fc35d613831a62f31ea6042decf0229dc2d0a22b.exe

pid process

2168 75f3cc169020d986ca557134fc35d613831a62f31ea6042decf0229dc2d0a22b.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:

75f3cc169020d986ca557134fc35d613831a62f31ea6042decf0229dc2d0a22b.exe

description ioc process

File opened (read-only) \??\F: 75f3cc169020d986ca557134fc35d613831a62f31ea6042decf0229dc2d0a22b.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:

75f3cc169020d986ca557134fc35d613831a62f31ea6042decf0229dc2d0a22b.exe

description ioc process

File opened for modification \??\PhysicalDrive0 75f3cc169020d986ca557134fc35d613831a62f31ea6042decf0229dc2d0a22b.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

75f3cc169020d986ca557134fc35d613831a62f31ea6042decf0229dc2d0a22b.exe

pid process

2168 75f3cc169020d986ca557134fc35d613831a62f31ea6042decf0229dc2d0a22b.exe

pid	process
2168	75f3cc169020d986ca557134fc35d613831a62f31ea6042decf0229dc2d0a22b.exe

description	ioc	process
File opened (read-only)	\??\F:	75f3cc169020d986ca557134fc35d613831a62f31ea6042decf0229dc2d0a22b.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	75f3cc169020d986ca557134fc35d613831a62f31ea6042decf0229dc2d0a22b.exe

pid	process
2168	75f3cc169020d986ca557134fc35d613831a62f31ea6042decf0229dc2d0a22b.exe

C:\Users\Admin\AppData\Local\Temp\75f3cc169020d986ca557134fc35d613831a62f31ea6042decf0229dc2d0a22b.exe
"C:\Users\Admin\AppData\Local\Temp\75f3cc169020d986ca557134fc35d613831a62f31ea6042decf0229dc2d0a22b.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
PID:2168

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

\Users\Admin\AppData\Local\Tencent\TxGameAssistant\TGBDownloader\dr.dll

Filesize
74KB

MD5
2814acbd607ba47bdbcdf6ac3076ee95

SHA1
50ab892071bed2bb2365ca1d4bf5594e71c6b13b

SHA256
5904a7e4d97eeac939662c3638a0e145f64ff3dd0198f895c4bf0337595c6a67

SHA512
34c73014ffc8d38d6dd29f4f84c8f4f9ea971bc131f665f65b277f453504d5efc2d483a792cdea610c5e0544bf3997b132dcdbe37224912c5234c15cdb89d498

Download Submit
memory/2168-5-0x00000000003E0000-0x00000000003EA000-memory.dmp

Filesize
40KB

Download
memory/2168-4-0x00000000003E0000-0x00000000003EA000-memory.dmp

Filesize
40KB

Download
memory/2168-11-0x00000000003E0000-0x00000000003EA000-memory.dmp

Filesize
40KB

Download
memory/2168-10-0x00000000003E0000-0x00000000003EA000-memory.dmp

Filesize
40KB

Download