ada4e2d4db707b2993757fcfe9a42dd1484cd81a9dcabfce593652700d5000e8

Analysis

max time kernel
187s
max time network
165s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
14/10/2023, 22:17

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General

Target

ada4e2d4db707b2993757fcfe9a42dd1484cd81a9dcabfce593652700d5000e8.exe
Size

3.4MB
MD5

13899b6d5f53870fbc91f21816cd71cf
SHA1

ad749dd657e1e153f4daba64c1a7664c230e17ae
SHA256

ada4e2d4db707b2993757fcfe9a42dd1484cd81a9dcabfce593652700d5000e8
SHA512

3e707c26aa78d22261ca0f86d9f6802f22df81022b32cb93db9b56352d046e6ac18d514cb5583bca44bdf6ae578a14956dd7109a49bd40501ab8ee14be333964
SSDEEP

49152:TevyHt8vnzLe5305uqs82SEg2N9yxuoAcgSpePhm0eNSIkZPlgivvIPHZT5d5LhP:Tev6MvU30Ls8j2N9yUdlgiZdi1pq57Yv

Score

7^/10

bootkit persistence

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
2128	ada4e2d4db707b2993757fcfe9a42dd1484cd81a9dcabfce593652700d5000e8.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:	ada4e2d4db707b2993757fcfe9a42dd1484cd81a9dcabfce593652700d5000e8.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	ada4e2d4db707b2993757fcfe9a42dd1484cd81a9dcabfce593652700d5000e8.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2128	ada4e2d4db707b2993757fcfe9a42dd1484cd81a9dcabfce593652700d5000e8.exe
2128	ada4e2d4db707b2993757fcfe9a42dd1484cd81a9dcabfce593652700d5000e8.exe

C:\Users\Admin\AppData\Local\Temp\ada4e2d4db707b2993757fcfe9a42dd1484cd81a9dcabfce593652700d5000e8.exe
"C:\Users\Admin\AppData\Local\Temp\ada4e2d4db707b2993757fcfe9a42dd1484cd81a9dcabfce593652700d5000e8.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
PID:2128

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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