67ea9e1543b631fc484440cb21fb8eba177faea04601c0e5f1e34b7a66158e30

Analysis

max time kernel
120s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/03/2024, 18:58

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General

Target

67ea9e1543b631fc484440cb21fb8eba177faea04601c0e5f1e34b7a66158e30.exe
Size

6.8MB
MD5

3177a0d4500d5f502a6ef3212d0e114f
SHA1

592cfd3953d17502d90d0cf2579cdf87c0e8d4db
SHA256

67ea9e1543b631fc484440cb21fb8eba177faea04601c0e5f1e34b7a66158e30
SHA512

6d77800148ae1bf88f2edfc983062a9868b2133ab51c7d35953418e027f2ca1b8688e3c6507f2a45a42573b3e847683b80e242b53e389bcb8c1bf9309126e557
SSDEEP

98304:f+2/6yNK0TqTWab1Cv1rBRYpxIcbkS79//enZPJOm4f0URyRr2Eq7eM:f+PfTH/Tbl1mnGbsiUhqJ

Score

7^/10

bootkit persistence

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
2136	67ea9e1543b631fc484440cb21fb8eba177faea04601c0e5f1e34b7a66158e30.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:	67ea9e1543b631fc484440cb21fb8eba177faea04601c0e5f1e34b7a66158e30.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	67ea9e1543b631fc484440cb21fb8eba177faea04601c0e5f1e34b7a66158e30.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2136	67ea9e1543b631fc484440cb21fb8eba177faea04601c0e5f1e34b7a66158e30.exe

C:\Users\Admin\AppData\Local\Temp\67ea9e1543b631fc484440cb21fb8eba177faea04601c0e5f1e34b7a66158e30.exe
"C:\Users\Admin\AppData\Local\Temp\67ea9e1543b631fc484440cb21fb8eba177faea04601c0e5f1e34b7a66158e30.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
PID:2136

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

\Users\Admin\AppData\Local\Tencent\TxGameAssistant\TGBDownloader\dr.dll

Filesize
74KB

MD5
2814acbd607ba47bdbcdf6ac3076ee95

SHA1
50ab892071bed2bb2365ca1d4bf5594e71c6b13b

SHA256
5904a7e4d97eeac939662c3638a0e145f64ff3dd0198f895c4bf0337595c6a67

SHA512
34c73014ffc8d38d6dd29f4f84c8f4f9ea971bc131f665f65b277f453504d5efc2d483a792cdea610c5e0544bf3997b132dcdbe37224912c5234c15cdb89d498

Download Submit
memory/2136-4-0x00000000000B0000-0x00000000000BA000-memory.dmp

Filesize
40KB

Download
memory/2136-7-0x00000000000B0000-0x00000000000BA000-memory.dmp

Filesize
40KB

Download
memory/2136-10-0x00000000000B0000-0x00000000000BA000-memory.dmp

Filesize
40KB

Download
memory/2136-11-0x00000000000B0000-0x00000000000BA000-memory.dmp

Filesize
40KB

Download