5d214ba9162c66fdaedcaefec9312c2cb5b276f121aa7e86a5e4dd247361d127

Analysis

max time kernel
142s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15-05-2024 03:17

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General

Target

5d214ba9162c66fdaedcaefec9312c2cb5b276f121aa7e86a5e4dd247361d127.exe
Size

3.4MB
MD5

07891e8f46fd9d40a124c1302832a2d6
SHA1

108886b3951463b7417b8907ff0ae1c95dfbdff7
SHA256

5d214ba9162c66fdaedcaefec9312c2cb5b276f121aa7e86a5e4dd247361d127
SHA512

bf326d8ddda65099562420f50262c146ee0db5218bdd54622289231fd1aaedc3d90b2330137a82528b7754866c111ea30d8f010f822a32a751d4dbf85d6bd6b8
SSDEEP

49152:3EjEamQb2OguN8Dfk5JEG14wv2QwnN4iTapOcaPKfjtD8cEOxeuxzS2hPV5T1gWM:3EjlmQbfgSgwvSnN4iVJuS0xVLQEoeqL

Score

7^/10

bootkit persistence

Malware Config

Signatures

Loads dropped DLL 1 IoCs

Processes:

5d214ba9162c66fdaedcaefec9312c2cb5b276f121aa7e86a5e4dd247361d127.exe

pid process

392 5d214ba9162c66fdaedcaefec9312c2cb5b276f121aa7e86a5e4dd247361d127.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:

5d214ba9162c66fdaedcaefec9312c2cb5b276f121aa7e86a5e4dd247361d127.exe

description ioc process

File opened (read-only) \??\F: 5d214ba9162c66fdaedcaefec9312c2cb5b276f121aa7e86a5e4dd247361d127.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:

5d214ba9162c66fdaedcaefec9312c2cb5b276f121aa7e86a5e4dd247361d127.exe

description ioc process

File opened for modification \??\PhysicalDrive0 5d214ba9162c66fdaedcaefec9312c2cb5b276f121aa7e86a5e4dd247361d127.exe

description	ioc	process
File opened (read-only)	\??\F:	5d214ba9162c66fdaedcaefec9312c2cb5b276f121aa7e86a5e4dd247361d127.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	5d214ba9162c66fdaedcaefec9312c2cb5b276f121aa7e86a5e4dd247361d127.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

5d214ba9162c66fdaedcaefec9312c2cb5b276f121aa7e86a5e4dd247361d127.exe

pid	process
392	5d214ba9162c66fdaedcaefec9312c2cb5b276f121aa7e86a5e4dd247361d127.exe
392	5d214ba9162c66fdaedcaefec9312c2cb5b276f121aa7e86a5e4dd247361d127.exe

C:\Users\Admin\AppData\Local\Temp\5d214ba9162c66fdaedcaefec9312c2cb5b276f121aa7e86a5e4dd247361d127.exe
"C:\Users\Admin\AppData\Local\Temp\5d214ba9162c66fdaedcaefec9312c2cb5b276f121aa7e86a5e4dd247361d127.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
PID:392

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4068 --field-trial-handle=2236,i,5367110156796017614,12594004256180761011,262144 --variations-seed-version /prefetch:8
1⤵
PID:2092

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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