tofsee | 9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7

General

Target

JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe
Size

300KB
MD5

182d46a7342ac2a2967195a823d0cece
SHA1

482e367a0d778f351ca84513f858f2094c2f6109
SHA256

9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7
SHA512

dd748ad474bb4868583b975db472b6c353021d1ce05152062e470a12f569b0302158ef155b0f2b7e9cb8ae348e984c73312aaa5408dfb6c9a27efb7e15ebe212
SSDEEP

3072:Rp4CdKyMOS7/473DkRVRKTJg50Yq0iQtLU8HHFdDZReYaahHvKhGtij4LyNfKR52:R3QdVRuZYq0ftNzDZReYXhHShGsIyep

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

patmushta.info

parubey.info

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee
Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4340	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\mcuhexad\ImagePath = "C:\\Windows\\SysWOW64\\mcuhexad\\lwxpcasd.exe"	svchost.exe

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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe

Deletes itself 1 IoCs

pid	Process
3720	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1576	lwxpcasd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1576 set thread context of 3720	1576	lwxpcasd.exe	101

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
5012	sc.exe
5072	sc.exe
1784	sc.exe

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4744	1948	WerFault.exe	82
4888	1576	WerFault.exe	94

System Location Discovery: System Language Discovery 1 TTPs 9 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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lwxpcasd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1948 wrote to memory of 4164	1948	JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe	83
PID 1948 wrote to memory of 4164	1948	JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe	83
PID 1948 wrote to memory of 4164	1948	JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe	83
PID 1948 wrote to memory of 2516	1948	JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe	85
PID 1948 wrote to memory of 2516	1948	JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe	85
PID 1948 wrote to memory of 2516	1948	JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe	85
PID 1948 wrote to memory of 5012	1948	JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe	87
PID 1948 wrote to memory of 5012	1948	JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe	87
PID 1948 wrote to memory of 5012	1948	JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe	87
PID 1948 wrote to memory of 5072	1948	JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe	89
PID 1948 wrote to memory of 5072	1948	JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe	89
PID 1948 wrote to memory of 5072	1948	JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe	89
PID 1948 wrote to memory of 1784	1948	JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe	92
PID 1948 wrote to memory of 1784	1948	JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe	92
PID 1948 wrote to memory of 1784	1948	JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe	92
PID 1948 wrote to memory of 4340	1948	JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe	95
PID 1948 wrote to memory of 4340	1948	JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe	95
PID 1948 wrote to memory of 4340	1948	JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe	95
PID 1576 wrote to memory of 3720	1576	lwxpcasd.exe	101
PID 1576 wrote to memory of 3720	1576	lwxpcasd.exe	101
PID 1576 wrote to memory of 3720	1576	lwxpcasd.exe	101
PID 1576 wrote to memory of 3720	1576	lwxpcasd.exe	101
PID 1576 wrote to memory of 3720	1576	lwxpcasd.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1948
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mcuhexad\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4164
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lwxpcasd.exe" C:\Windows\SysWOW64\mcuhexad\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2516
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mcuhexad binPath= "C:\Windows\SysWOW64\mcuhexad\lwxpcasd.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mcuhexad "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5072
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mcuhexad
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1784
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:4340
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1948 -s 1044
  2⤵
  - Program crash
  PID:4744

C:\Windows\SysWOW64\mcuhexad\lwxpcasd.exe
C:\Windows\SysWOW64\mcuhexad\lwxpcasd.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f87ec93e667df4f14763906163e9e3dee65dd81d4a66f39208d149243caf6e7.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1576
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3720
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1576 -s 520
  2⤵
  - Program crash
  PID:4888

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1948 -ip 1948
1⤵
PID:4972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1576 -ip 1576
1⤵
PID:4420

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
12.0MB

MD5
c7427161422965d71df584979c595bd2

SHA1
66a5d47d474927652c9c7ec0acf366d404bad7e8

SHA256
f3d2d09f5daf9b29b6ec88e0f16bd8178912fe4ec64730e9a7377f19417c62dc

SHA512
67e33811024f7332ee1fa08a09e3b337c710465e006eda60ef16c633b52767b961bbdd1f9f913847219c1dd14d52aaa1d3afed9a1ae87c4bf25f1a0567e6ab06

Download Submit
memory/1576-12-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1576-8-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1576-17-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1948-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1948-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1948-9-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1948-1-0x0000000000530000-0x0000000000630000-memory.dmp

Filesize
1024KB

Download
memory/1948-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1948-10-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3720-13-0x0000000000D50000-0x0000000000D65000-memory.dmp

Filesize
84KB

Download
memory/3720-15-0x0000000000D50000-0x0000000000D65000-memory.dmp

Filesize
84KB

Download
memory/3720-16-0x0000000000D50000-0x0000000000D65000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads