0aa3ca9906c4ad14f282806b6c28c508c011dddc248936f5a559771039cf579a

Analysis

max time kernel
140s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
23/07/2024, 16:55

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General

Target

0aa3ca9906c4ad14f282806b6c28c508c011dddc248936f5a559771039cf579a.exe
Size

3.5MB
MD5

61593c989dfb746cea43608b2b37409c
SHA1

3602e9a4d67ac01476980fcaf040171e2f3e40ff
SHA256

0aa3ca9906c4ad14f282806b6c28c508c011dddc248936f5a559771039cf579a
SHA512

8baa1eaa48742f084c6a7480a618844d7feb38e1acb53f6205d16c0a4d75538e78d1e86227c1dce60226c9c5a0ab4155eaefc6d20788c584ab2014489848c7f5
SSDEEP

49152:XEjEamQb2OguN8Dfk5JEG14wv2QwnN4iTapOcaPKfjtD8cEOxeuxzS2hPV5T1gW/:XEjlmQbfgSgwvSnN4iVJu60xyIXggdqA

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
3380	0aa3ca9906c4ad14f282806b6c28c508c011dddc248936f5a559771039cf579a.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:	0aa3ca9906c4ad14f282806b6c28c508c011dddc248936f5a559771039cf579a.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	0aa3ca9906c4ad14f282806b6c28c508c011dddc248936f5a559771039cf579a.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0aa3ca9906c4ad14f282806b6c28c508c011dddc248936f5a559771039cf579a.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3380	0aa3ca9906c4ad14f282806b6c28c508c011dddc248936f5a559771039cf579a.exe
3380	0aa3ca9906c4ad14f282806b6c28c508c011dddc248936f5a559771039cf579a.exe

C:\Users\Admin\AppData\Local\Temp\0aa3ca9906c4ad14f282806b6c28c508c011dddc248936f5a559771039cf579a.exe
"C:\Users\Admin\AppData\Local\Temp\0aa3ca9906c4ad14f282806b6c28c508c011dddc248936f5a559771039cf579a.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:3380

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

System Location Discovery

T1614

System Language Discovery

T1614.001

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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