385022efd94741c7ff8797b8ebd98dfff0c6571cfcca1eae4463ad0b20cbab60

Analysis

max time kernel
122s
max time network
129s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
12/10/2023, 17:36

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General

Target

385022efd94741c7ff8797b8ebd98dfff0c6571cfcca1eae4463ad0b20cbab60.exe
Size

3.6MB
MD5

220201e66d9294f95d1a3b0f20e317ab
SHA1

f48175e0cbee0c42dacd07df370d812c4e0ed8c8
SHA256

385022efd94741c7ff8797b8ebd98dfff0c6571cfcca1eae4463ad0b20cbab60
SHA512

70119acb8f69cc65375d47aa62669f47c83e0c6edeeacde95df07b0d0afa2f69416ca5d0ebcecc532bc8f081799ef069df78ed0e4f1bfbf5ce117a4e7d0a35c3
SSDEEP

49152:g08OhxtUg9OUi82w6aQp9dgS1GUL38XhCOYc3iJXe9emEPGKOPkQThMYRZnm7LBS:g08vdsGaQNgS1C6eTnuFzqTZ

Score

7^/10

bootkit persistence

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
3016	385022efd94741c7ff8797b8ebd98dfff0c6571cfcca1eae4463ad0b20cbab60.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

description	ioc	Process
File opened (read-only)	\??\F:	385022efd94741c7ff8797b8ebd98dfff0c6571cfcca1eae4463ad0b20cbab60.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

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	385022efd94741c7ff8797b8ebd98dfff0c6571cfcca1eae4463ad0b20cbab60.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3016	385022efd94741c7ff8797b8ebd98dfff0c6571cfcca1eae4463ad0b20cbab60.exe

C:\Users\Admin\AppData\Local\Temp\385022efd94741c7ff8797b8ebd98dfff0c6571cfcca1eae4463ad0b20cbab60.exe
"C:\Users\Admin\AppData\Local\Temp\385022efd94741c7ff8797b8ebd98dfff0c6571cfcca1eae4463ad0b20cbab60.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
PID:3016

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/3016-5-0x00000000000B0000-0x00000000000BA000-memory.dmp

Filesize
40KB

Download
memory/3016-4-0x00000000000B0000-0x00000000000BA000-memory.dmp

Filesize
40KB

Download
memory/3016-10-0x00000000000B0000-0x00000000000BA000-memory.dmp

Filesize
40KB

Download
memory/3016-11-0x00000000000B0000-0x00000000000BA000-memory.dmp

Filesize
40KB

Download