dd26733ff65004d497c42ab8f868c9ead2ecd5e0ec5030fe5cbf5a4dbf117faa

Analysis

max time kernel
93s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
11-05-2024 03:16

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General

Target

dd26733ff65004d497c42ab8f868c9ead2ecd5e0ec5030fe5cbf5a4dbf117faa.exe
Size

3.4MB
MD5

2fa9e98586d389c987f558fa51652b4e
SHA1

1d837677d13de91098b8d960589ae7d88a6e89b0
SHA256

dd26733ff65004d497c42ab8f868c9ead2ecd5e0ec5030fe5cbf5a4dbf117faa
SHA512

fc752e7f4e37ee66ed62b4713ca15ae7730d08d90c423c4c9170f6f953f23d77d72bcb29e3d397a28379c0deeb0046495be759599a06b8561c9c68a1a43ab0cc
SSDEEP

49152:DEjEamQb2OguN8Dfk5JEG14wv2QwnN4iTapOcaPKfjtD8cEOxeuxzS2hPV5T1gWD:DEjlmQbfgSgwvSnN4iVJuS0xJdzYUqa

Score

7^/10

bootkit persistence

Malware Config

Signatures

Loads dropped DLL 1 IoCs

Processes:

dd26733ff65004d497c42ab8f868c9ead2ecd5e0ec5030fe5cbf5a4dbf117faa.exe

pid process

1224 dd26733ff65004d497c42ab8f868c9ead2ecd5e0ec5030fe5cbf5a4dbf117faa.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

Processes:

dd26733ff65004d497c42ab8f868c9ead2ecd5e0ec5030fe5cbf5a4dbf117faa.exe

description ioc process

File opened (read-only) \??\F: dd26733ff65004d497c42ab8f868c9ead2ecd5e0ec5030fe5cbf5a4dbf117faa.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

Processes:

dd26733ff65004d497c42ab8f868c9ead2ecd5e0ec5030fe5cbf5a4dbf117faa.exe

description ioc process

File opened for modification \??\PhysicalDrive0 dd26733ff65004d497c42ab8f868c9ead2ecd5e0ec5030fe5cbf5a4dbf117faa.exe

description	ioc	process
File opened (read-only)	\??\F:	dd26733ff65004d497c42ab8f868c9ead2ecd5e0ec5030fe5cbf5a4dbf117faa.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	dd26733ff65004d497c42ab8f868c9ead2ecd5e0ec5030fe5cbf5a4dbf117faa.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

dd26733ff65004d497c42ab8f868c9ead2ecd5e0ec5030fe5cbf5a4dbf117faa.exe

pid	process
1224	dd26733ff65004d497c42ab8f868c9ead2ecd5e0ec5030fe5cbf5a4dbf117faa.exe
1224	dd26733ff65004d497c42ab8f868c9ead2ecd5e0ec5030fe5cbf5a4dbf117faa.exe

C:\Users\Admin\AppData\Local\Temp\dd26733ff65004d497c42ab8f868c9ead2ecd5e0ec5030fe5cbf5a4dbf117faa.exe
"C:\Users\Admin\AppData\Local\Temp\dd26733ff65004d497c42ab8f868c9ead2ecd5e0ec5030fe5cbf5a4dbf117faa.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
PID:1224

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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