7744f5424e2f5d3865134e6826779417cee0f8e3cecac07c67ceac47e9fb6150

Analysis

max time kernel
117s
max time network
122s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
26/11/2023, 20:06

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

7744f5424e2f5d3865134e6826779417cee0f8e3cecac07c67ceac47e9fb6150.exe
Size

3.6MB
MD5

8c223a5320c5d1ba089f35cedd66e1c7
SHA1

01d9f00424df51b8081bd958830b73caf8d290a1
SHA256

7744f5424e2f5d3865134e6826779417cee0f8e3cecac07c67ceac47e9fb6150
SHA512

425665d8f572d99ef4b16e7f6f87f36ae69dd1d4d64754e531d685e63c77cfa78cda98b40564ff72f26fb9ba0d09a73b450cf97d22a33b2c2b73c403df6e7ce8
SSDEEP

49152:m08OhxtUg9OUi82w6aQp9dgS1GUL38XhCOYc3iJXe9emEPGKOPkQThMYRGnm7LBN:m08vdsGaQNgS1C6eon03lq0

Score

7^/10

bootkit persistence

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
2144	7744f5424e2f5d3865134e6826779417cee0f8e3cecac07c67ceac47e9fb6150.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:	7744f5424e2f5d3865134e6826779417cee0f8e3cecac07c67ceac47e9fb6150.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	7744f5424e2f5d3865134e6826779417cee0f8e3cecac07c67ceac47e9fb6150.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2144	7744f5424e2f5d3865134e6826779417cee0f8e3cecac07c67ceac47e9fb6150.exe

C:\Users\Admin\AppData\Local\Temp\7744f5424e2f5d3865134e6826779417cee0f8e3cecac07c67ceac47e9fb6150.exe
"C:\Users\Admin\AppData\Local\Temp\7744f5424e2f5d3865134e6826779417cee0f8e3cecac07c67ceac47e9fb6150.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
PID:2144

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

Loading Replay Monitor...

Downloads

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

Filesize
74KB

MD5
2814acbd607ba47bdbcdf6ac3076ee95

SHA1
50ab892071bed2bb2365ca1d4bf5594e71c6b13b

SHA256
5904a7e4d97eeac939662c3638a0e145f64ff3dd0198f895c4bf0337595c6a67

SHA512
34c73014ffc8d38d6dd29f4f84c8f4f9ea971bc131f665f65b277f453504d5efc2d483a792cdea610c5e0544bf3997b132dcdbe37224912c5234c15cdb89d498

Download Submit
memory/2144-6-0x0000000000260000-0x000000000026A000-memory.dmp

Filesize
40KB

Download
memory/2144-7-0x0000000000260000-0x000000000026A000-memory.dmp

Filesize
40KB

Download
memory/2144-10-0x0000000000260000-0x000000000026A000-memory.dmp

Filesize
40KB

Download
memory/2144-11-0x0000000000260000-0x000000000026A000-memory.dmp

Filesize
40KB

Download