chinese_generic_botnet | 3fee7f944dc0f23d09628713fe542cfcd70c6192d8fe106c6a5bf10516887f3d

General

Target

3fee7f944dc0f23d09628713fe542cfcd70c6192d8fe106c6a5bf10516887f3d.exe
Size

573KB
MD5

4de52afe5be73651d8121a799cc08b59
SHA1

1e269edfab7f8f84a8f212b2288a0f13aa499af8
SHA256

3fee7f944dc0f23d09628713fe542cfcd70c6192d8fe106c6a5bf10516887f3d
SHA512

13a166155992729037a6a8058bd267481013cdb9f768537568e954ccf142e31880b4e59f2cfba9da1420c42d8c2aa6edd0ff90194848db3c713d898c8b16922d
SSDEEP

12288:nsaY8rigT27rMf3hGrBvelimccunSH2JGhfZ+1hmohdTyeTqy:B/rxT28EvelFfunSH2wxZ+9hFT/

Score

10^/10

chinese_generic_botnet botnet persistence upx

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/540-24-0x0000000010000000-0x0000000010018000-memory.dmp	unk_chinese_botnet

UPX dump on OEP (original entry point) 2 IoCs

resource	yara_rule
behavioral2/memory/900-0-0x0000000000400000-0x000000000041C000-memory.dmp	UPX
behavioral2/memory/900-21-0x0000000000400000-0x000000000041C000-memory.dmp	UPX

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\Control Panel\International\Geo\Nation	3fee7f944dc0f23d09628713fe542cfcd70c6192d8fe106c6a5bf10516887f3d.exe

Executes dropped EXE 2 IoCs

pid	Process
1656	ÎÄ±¾´¦Àí.exe
540	IntelCpHDCPSvc.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/900-0-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/900-21-0x0000000000400000-0x000000000041C000-memory.dmp	upx

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-1-5-21-877519540-908060166-1852957295-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Wcdsekp.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Temp\\IntelCpHDCPSvc.exe"	IntelCpHDCPSvc.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)	\??\M:	IntelCpHDCPSvc.exe
File opened (read-only)	\??\S:	IntelCpHDCPSvc.exe
File opened (read-only)	\??\V:	IntelCpHDCPSvc.exe
File opened (read-only)	\??\W:	IntelCpHDCPSvc.exe
File opened (read-only)	\??\Y:	IntelCpHDCPSvc.exe
File opened (read-only)	\??\B:	IntelCpHDCPSvc.exe
File opened (read-only)	\??\G:	IntelCpHDCPSvc.exe
File opened (read-only)	\??\H:	IntelCpHDCPSvc.exe
File opened (read-only)	\??\P:	IntelCpHDCPSvc.exe
File opened (read-only)	\??\X:	IntelCpHDCPSvc.exe
File opened (read-only)	\??\Z:	IntelCpHDCPSvc.exe
File opened (read-only)	\??\K:	IntelCpHDCPSvc.exe
File opened (read-only)	\??\L:	IntelCpHDCPSvc.exe
File opened (read-only)	\??\E:	IntelCpHDCPSvc.exe
File opened (read-only)	\??\I:	IntelCpHDCPSvc.exe
File opened (read-only)	\??\J:	IntelCpHDCPSvc.exe
File opened (read-only)	\??\N:	IntelCpHDCPSvc.exe
File opened (read-only)	\??\O:	IntelCpHDCPSvc.exe
File opened (read-only)	\??\Q:	IntelCpHDCPSvc.exe
File opened (read-only)	\??\R:	IntelCpHDCPSvc.exe
File opened (read-only)	\??\T:	IntelCpHDCPSvc.exe
File opened (read-only)	\??\U:	IntelCpHDCPSvc.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	IntelCpHDCPSvc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	IntelCpHDCPSvc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
540	IntelCpHDCPSvc.exe
540	IntelCpHDCPSvc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1656	ÎÄ±¾´¦Àí.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 900 wrote to memory of 1656	900	3fee7f944dc0f23d09628713fe542cfcd70c6192d8fe106c6a5bf10516887f3d.exe	86
PID 900 wrote to memory of 1656	900	3fee7f944dc0f23d09628713fe542cfcd70c6192d8fe106c6a5bf10516887f3d.exe	86
PID 900 wrote to memory of 1656	900	3fee7f944dc0f23d09628713fe542cfcd70c6192d8fe106c6a5bf10516887f3d.exe	86
PID 900 wrote to memory of 540	900	3fee7f944dc0f23d09628713fe542cfcd70c6192d8fe106c6a5bf10516887f3d.exe	87
PID 900 wrote to memory of 540	900	3fee7f944dc0f23d09628713fe542cfcd70c6192d8fe106c6a5bf10516887f3d.exe	87
PID 900 wrote to memory of 540	900	3fee7f944dc0f23d09628713fe542cfcd70c6192d8fe106c6a5bf10516887f3d.exe	87
PID 540 wrote to memory of 64	540	IntelCpHDCPSvc.exe	88
PID 540 wrote to memory of 64	540	IntelCpHDCPSvc.exe	88
PID 540 wrote to memory of 64	540	IntelCpHDCPSvc.exe	88

C:\Users\Admin\AppData\Local\Temp\3fee7f944dc0f23d09628713fe542cfcd70c6192d8fe106c6a5bf10516887f3d.exe
"C:\Users\Admin\AppData\Local\Temp\3fee7f944dc0f23d09628713fe542cfcd70c6192d8fe106c6a5bf10516887f3d.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:900
- C:\Users\Admin\AppData\Local\Temp\Temp\ÎÄ±¾´¦Àí.exe
  "C:\Users\Admin\AppData\Local\Temp\Temp\ÎÄ±¾´¦Àí.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1656
- C:\Users\Admin\AppData\Local\Temp\Temp\IntelCpHDCPSvc.exe
  "C:\Users\Admin\AppData\Local\Temp\Temp\IntelCpHDCPSvc.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 WriteProcessMemory
  PID:540
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c md C:\windowss64
    3⤵
    PID:64

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

4

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\Temp\IntelCpHDCPSvc.exe

Filesize
412KB

MD5
669f0cd8a956fe16c90debc6950ff637

SHA1
aebfc5daf7081d47ef11027864f85febe662e664

SHA256
0a197cd65dd3a1cbe8becfcb6c2feb6fb23c0259866620602f641d9d110e4c5c

SHA512
714fec3975174fe0881d8363007afe7e817317f7781e61d4a845591ad99208ed6c05ffd0d5b0a121173afc18329f01639ef9f3db2b9a7a692bf42feb91311f26

Download Submit
C:\Users\Admin\AppData\Local\Temp\Temp\ÎÄ±¾´¦Àí.exe

Filesize
1.0MB

MD5
b16409fa2a8b5126c2e2c6031f4c9c08

SHA1
8e92523018abc7feca56707679baaa8ea09a6a1a

SHA256
d63ee11aa0a1bb6b3832255f01c812d13123adff3a57acfaad0619b58f850b29

SHA512
a1f5cf8ac0e4ee4edef4be0173605b7676213fb501d3658a157b6ae19aa7b729acaaa42c0776a2cfaec3cf094bab8118f295d8d2e299636f127e9e5b34b17918

Download Submit
memory/540-24-0x0000000010000000-0x0000000010018000-memory.dmp

Filesize
96KB

Download
memory/900-0-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/900-21-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/1656-15-0x0000000000400000-0x000000000050E000-memory.dmp

Filesize
1.1MB

Download
memory/1656-22-0x0000000000820000-0x0000000000821000-memory.dmp

Filesize
4KB

Download
memory/1656-23-0x0000000000400000-0x000000000050E000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads