chinese_generic_botnet | b4d51b0354e7508d723396fa6affd92b5108fa3cd27ecd4c86001a5ffb999cb8

Analysis

max time kernel
142s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20231025-en
resource tags

arch:x64arch:x86image:win10v2004-20231025-enlocale:en-usos:windows10-2004-x64system
submitted
17-11-2023 01:08

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General

Target

NEAS.108fde1527d48fabd718d3b25d58ce40.exe
Size

1.8MB
MD5

108fde1527d48fabd718d3b25d58ce40
SHA1

fdd49fafb3fc40b700204f60d754143468762f4d
SHA256

b4d51b0354e7508d723396fa6affd92b5108fa3cd27ecd4c86001a5ffb999cb8
SHA512

140a12f14e3733a4a2989dccf645033e628684bcd4c56e63c7d2d22ed2893ce71e986e6c1ef04fde121125dbed128d48245d121980ac0bceb2fe7fdc809e6e04
SSDEEP

12288:uvTIiUxmYh90jjAblb1yHy8ZV0Lug6BtPtzFS30pS6zxgIsxITrLpyPYCSXh1M2p:ubIiCm898jGyS8RY3VSdsxIPL1/xUU

Score

10^/10

chinese_generic_botnet botnet persistence

Malware Config

Signatures

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

Chinese Botnet payload 1 IoCs

botnet

resource	yara_rule
behavioral2/memory/1156-4-0x0000000010000000-0x0000000010018000-memory.dmp	unk_chinese_botnet

Executes dropped EXE 1 IoCs

pid	Process
1156	Server.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rotzeac.exe = "C:\\Windows\\SysWOW64\\Server.exe"	Server.exe

Enumerates connected drives 3 TTPs 22 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)	\??\X:	Server.exe
File opened (read-only)	\??\I:	Server.exe
File opened (read-only)	\??\J:	Server.exe
File opened (read-only)	\??\L:	Server.exe
File opened (read-only)	\??\O:	Server.exe
File opened (read-only)	\??\T:	Server.exe
File opened (read-only)	\??\R:	Server.exe
File opened (read-only)	\??\V:	Server.exe
File opened (read-only)	\??\W:	Server.exe
File opened (read-only)	\??\B:	Server.exe
File opened (read-only)	\??\E:	Server.exe
File opened (read-only)	\??\G:	Server.exe
File opened (read-only)	\??\H:	Server.exe
File opened (read-only)	\??\N:	Server.exe
File opened (read-only)	\??\P:	Server.exe
File opened (read-only)	\??\Q:	Server.exe
File opened (read-only)	\??\S:	Server.exe
File opened (read-only)	\??\U:	Server.exe
File opened (read-only)	\??\K:	Server.exe
File opened (read-only)	\??\M:	Server.exe
File opened (read-only)	\??\Y:	Server.exe
File opened (read-only)	\??\Z:	Server.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Server.exe	NEAS.108fde1527d48fabd718d3b25d58ce40.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Server.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	Server.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1156	Server.exe
1156	Server.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1916	NEAS.108fde1527d48fabd718d3b25d58ce40.exe
1916	NEAS.108fde1527d48fabd718d3b25d58ce40.exe
1156	Server.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 1156	1916	NEAS.108fde1527d48fabd718d3b25d58ce40.exe	88
PID 1916 wrote to memory of 1156	1916	NEAS.108fde1527d48fabd718d3b25d58ce40.exe	88
PID 1916 wrote to memory of 1156	1916	NEAS.108fde1527d48fabd718d3b25d58ce40.exe	88

C:\Users\Admin\AppData\Local\Temp\NEAS.108fde1527d48fabd718d3b25d58ce40.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.108fde1527d48fabd718d3b25d58ce40.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Windows\SysWOW64\Server.exe
  C:\Windows\system32\\Server.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Enumerates connected drives
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:1156

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\Server.exe

Filesize
1.0MB

MD5
b1b90cec4501087e97426d83c01bbd1f

SHA1
444dae63f2a182366fb40060bd91f174dd33424b

SHA256
6d42ce925574750c88aff2d8e3b4cb0d500ef23d520706f82ed913eba9c466fe

SHA512
806f1956cb05db1ab8f2d35223c961919cc5d7ce4d63aef1dad1f9d51927b3a7e6022b1df52c6f8bcbf595d3df0134ce6101f3b557c716934ad0f91dafcece81

Download Submit
C:\Windows\SysWOW64\Server.exe

Filesize
1.0MB

MD5
b1b90cec4501087e97426d83c01bbd1f

SHA1
444dae63f2a182366fb40060bd91f174dd33424b

SHA256
6d42ce925574750c88aff2d8e3b4cb0d500ef23d520706f82ed913eba9c466fe

SHA512
806f1956cb05db1ab8f2d35223c961919cc5d7ce4d63aef1dad1f9d51927b3a7e6022b1df52c6f8bcbf595d3df0134ce6101f3b557c716934ad0f91dafcece81

Download Submit
memory/1156-4-0x0000000010000000-0x0000000010018000-memory.dmp

Filesize
96KB

Download