62bd42f76d558834dc0b7cad9098b2e97f8e3fee4e30283e000de26dd94079b7

Analysis

max time kernel
117s
max time network
133s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
10-10-2023 20:46

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General

Target

62bd42f76d558834dc0b7cad9098b2e97f8e3fee4e30283e000de26dd94079b7.exe
Size

3.6MB
MD5

af97ffb857843f778beb4858da7cf09e
SHA1

168bcf6bd31a71387d1b6d339cb699f4140d129c
SHA256

62bd42f76d558834dc0b7cad9098b2e97f8e3fee4e30283e000de26dd94079b7
SHA512

37ad480f2b81913297e081cf52d15dfa785ab233abfd5d0ff502437a7e9e9f18e03be79c91ddc8f1f20bff1c329b74fae7f1a319ab3fa0002a4564b4aeb36461
SSDEEP

49152:d08OhxtUg9OUi82w6aQp9dgS1GUL38XhCOYc3iJXe9emEPGKOPkQThMYRLnm7LBh:d08vdsGaQNgS1C6eNn00OqQ

Score

7^/10

bootkit persistence

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
2008	62bd42f76d558834dc0b7cad9098b2e97f8e3fee4e30283e000de26dd94079b7.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:	62bd42f76d558834dc0b7cad9098b2e97f8e3fee4e30283e000de26dd94079b7.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	62bd42f76d558834dc0b7cad9098b2e97f8e3fee4e30283e000de26dd94079b7.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2008	62bd42f76d558834dc0b7cad9098b2e97f8e3fee4e30283e000de26dd94079b7.exe

C:\Users\Admin\AppData\Local\Temp\62bd42f76d558834dc0b7cad9098b2e97f8e3fee4e30283e000de26dd94079b7.exe
"C:\Users\Admin\AppData\Local\Temp\62bd42f76d558834dc0b7cad9098b2e97f8e3fee4e30283e000de26dd94079b7.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
PID:2008

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/2008-4-0x0000000000510000-0x000000000051A000-memory.dmp

Filesize
40KB

Download
memory/2008-5-0x0000000000510000-0x000000000051A000-memory.dmp

Filesize
40KB

Download
memory/2008-10-0x0000000000510000-0x000000000051A000-memory.dmp

Filesize
40KB

Download
memory/2008-11-0x0000000000510000-0x000000000051A000-memory.dmp

Filesize
40KB

Download