eba7ef1fb95fc32af310e2971ac2ba76101923793dfaf06f21f0a9c91925644e

Analysis

max time kernel
138s
max time network
182s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
26/11/2023, 18:58

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General

Target

eba7ef1fb95fc32af310e2971ac2ba76101923793dfaf06f21f0a9c91925644e.exe
Size

2.6MB
MD5

f31a36f723f7a68210bb25d7d27aff3a
SHA1

37ff428d54cdb1c123bbea19bb532736442d226d
SHA256

eba7ef1fb95fc32af310e2971ac2ba76101923793dfaf06f21f0a9c91925644e
SHA512

6e8bbd17b882a50eb02ef3397fc4e3f6eee1f44adf1f7b2280b1dc9859cfc97f8cc0f974b64a75b98f4b021452e0a21ff1e9b68fa6615f82a3e5ff4c7a886761
SSDEEP

49152:ygpBULEt2tB7b26iEMO8sfz44dGgXpk8Ji7JvLWlqm95GLz2iPOqTHVXzyvPhGdc:yomIczkwJeKGLKgdDhqL

Score

7^/10

bootkit persistence

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
4280	eba7ef1fb95fc32af310e2971ac2ba76101923793dfaf06f21f0a9c91925644e.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:	eba7ef1fb95fc32af310e2971ac2ba76101923793dfaf06f21f0a9c91925644e.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	eba7ef1fb95fc32af310e2971ac2ba76101923793dfaf06f21f0a9c91925644e.exe

C:\Users\Admin\AppData\Local\Temp\eba7ef1fb95fc32af310e2971ac2ba76101923793dfaf06f21f0a9c91925644e.exe
"C:\Users\Admin\AppData\Local\Temp\eba7ef1fb95fc32af310e2971ac2ba76101923793dfaf06f21f0a9c91925644e.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
PID:4280

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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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads