chinese_generic_botnet | b6896b391ffd66abb4cbf1cfaf4384b00802626ee5e2b1fd61917b31ba71b5c5

Analysis

max time kernel
112s
max time network
117s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
04-08-2024 16:13

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

f36911ffd69559381d8e0eac23c1d050N.exe
Size

540KB
MD5

f36911ffd69559381d8e0eac23c1d050
SHA1

9db83c5a8a04b77005a2a69e639e53a0c938a0db
SHA256

b6896b391ffd66abb4cbf1cfaf4384b00802626ee5e2b1fd61917b31ba71b5c5
SHA512

e72cf53977900daef9ea7d66910b7fc66700bea9252ad97ebc2076c5f5416a288f7ccf188ff52dc0ec82f917d36ffb9ce7106e10ad8a9147586b35868df013b3
SSDEEP

3072:A5OsiQ79xzUcbK9LK/fzuaCrutJUDpRfmm5yqiXO+Zoy/6ESh0Jz5OdRSu:G7hoBO/fzxUpFmkgXO+T/6EJJNaS

Score

10^/10

chinese_generic_botnet botnet discovery

Malware Config

Signatures

Generic Chinese Botnet
A botnet originating from China which is currently unnamed publicly.
botnet chinese_generic_botnet

Chinese Botnet payload 2 IoCs

botnet

resource	yara_rule
behavioral1/memory/2176-0-0x0000000010000000-0x0000000010018000-memory.dmp	unk_chinese_botnet
behavioral1/memory/2176-22-0x0000000000400000-0x000000000048A000-memory.dmp	unk_chinese_botnet

Executes dropped EXE 2 IoCs

pid	Process
2528	Cmnurtw.exe
2700	Cmnurtw.exe

Loads dropped DLL 7 IoCs

pid	Process
2528	Cmnurtw.exe
2528	Cmnurtw.exe
2528	Cmnurtw.exe
2528	Cmnurtw.exe
2700	Cmnurtw.exe
2700	Cmnurtw.exe
2700	Cmnurtw.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Cmnurtw.exe	f36911ffd69559381d8e0eac23c1d050N.exe
File opened for modification	C:\Program Files (x86)\Cmnurtw.exe	f36911ffd69559381d8e0eac23c1d050N.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f36911ffd69559381d8e0eac23c1d050N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Cmnurtw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Cmnurtw.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2176	f36911ffd69559381d8e0eac23c1d050N.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2176	f36911ffd69559381d8e0eac23c1d050N.exe
2528	Cmnurtw.exe
2700	Cmnurtw.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 2700	2528	Cmnurtw.exe	31
PID 2528 wrote to memory of 2700	2528	Cmnurtw.exe	31
PID 2528 wrote to memory of 2700	2528	Cmnurtw.exe	31
PID 2528 wrote to memory of 2700	2528	Cmnurtw.exe	31
PID 2528 wrote to memory of 2700	2528	Cmnurtw.exe	31
PID 2528 wrote to memory of 2700	2528	Cmnurtw.exe	31
PID 2528 wrote to memory of 2700	2528	Cmnurtw.exe	31

C:\Users\Admin\AppData\Local\Temp\f36911ffd69559381d8e0eac23c1d050N.exe
"C:\Users\Admin\AppData\Local\Temp\f36911ffd69559381d8e0eac23c1d050N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
PID:2176

C:\Program Files (x86)\Cmnurtw.exe
"C:\Program Files (x86)\Cmnurtw.exe"
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Program Files (x86)\Cmnurtw.exe
  "C:\Program Files (x86)\Cmnurtw.exe" Win7
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2700

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files (x86)\Cmnurtw.exe

Filesize
540KB

MD5
f36911ffd69559381d8e0eac23c1d050

SHA1
9db83c5a8a04b77005a2a69e639e53a0c938a0db

SHA256
b6896b391ffd66abb4cbf1cfaf4384b00802626ee5e2b1fd61917b31ba71b5c5

SHA512
e72cf53977900daef9ea7d66910b7fc66700bea9252ad97ebc2076c5f5416a288f7ccf188ff52dc0ec82f917d36ffb9ce7106e10ad8a9147586b35868df013b3

Download Submit
memory/2176-0-0x0000000010000000-0x0000000010018000-memory.dmp

Filesize
96KB

Download
memory/2176-22-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download