tofsee | 4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23

General

Target

JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe
Size

187KB
MD5

c2a778630a2fc539bb9513aea545263d
SHA1

922e32d1aec7cb7bde493f5cb83514478a714cd3
SHA256

4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23
SHA512

e0b291ab6b976e4a7e44d221c058edbd4861135865e56e54f6c98437fbf1aa095eda70fbcdc40b72951b119285f225ecd8f11a47ba1814bc7472f1a7379c9cfb
SSDEEP

3072:y7nkTvI0pZG/xfCqaSvAt7XLh27C+Eo3Ey0slcok9pZa9uD6Vdyhkf:S+vI0pZG/xfCqBA92OGcok9wVf

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

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
1936	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\xekwhzaw\ImagePath = "C:\\Windows\\SysWOW64\\xekwhzaw\\najghmyl.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe

Deletes itself 1 IoCs

pid	Process
3004	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2516	najghmyl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2516 set thread context of 3004	2516	najghmyl.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
1344	sc.exe
2116	sc.exe
3312	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

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	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	najghmyl.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4180 wrote to memory of 624	4180	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	84
PID 4180 wrote to memory of 624	4180	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	84
PID 4180 wrote to memory of 624	4180	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	84
PID 4180 wrote to memory of 3720	4180	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	86
PID 4180 wrote to memory of 3720	4180	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	86
PID 4180 wrote to memory of 3720	4180	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	86
PID 4180 wrote to memory of 1344	4180	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	88
PID 4180 wrote to memory of 1344	4180	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	88
PID 4180 wrote to memory of 1344	4180	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	88
PID 4180 wrote to memory of 2116	4180	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	90
PID 4180 wrote to memory of 2116	4180	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	90
PID 4180 wrote to memory of 2116	4180	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	90
PID 4180 wrote to memory of 3312	4180	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	92
PID 4180 wrote to memory of 3312	4180	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	92
PID 4180 wrote to memory of 3312	4180	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	92
PID 4180 wrote to memory of 1936	4180	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	95
PID 4180 wrote to memory of 1936	4180	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	95
PID 4180 wrote to memory of 1936	4180	JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe	95
PID 2516 wrote to memory of 3004	2516	najghmyl.exe	97
PID 2516 wrote to memory of 3004	2516	najghmyl.exe	97
PID 2516 wrote to memory of 3004	2516	najghmyl.exe	97
PID 2516 wrote to memory of 3004	2516	najghmyl.exe	97
PID 2516 wrote to memory of 3004	2516	najghmyl.exe	97

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xekwhzaw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:624
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\najghmyl.exe" C:\Windows\SysWOW64\xekwhzaw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3720
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xekwhzaw binPath= "C:\Windows\SysWOW64\xekwhzaw\najghmyl.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1344
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xekwhzaw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2116
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xekwhzaw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3312
- 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:1936

C:\Windows\SysWOW64\xekwhzaw\najghmyl.exe
C:\Windows\SysWOW64\xekwhzaw\najghmyl.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4ffa17dc5c1c0998ba93f9a2576071ad345b857865691bfa4f11d6d80a5f4d23.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3004

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\najghmyl.exe

Filesize
14.3MB

MD5
e10631101f28118e1781147ce25aed26

SHA1
eb085d6a9665a393841e118d15ceacb865a2a5c8

SHA256
2850e83b09e2988163654eaf59b91e2e140ada6f9006507972fe34fbea99a429

SHA512
dd659099f3c6ba1db67bd49a65e6280ec3cafe1794709284ca89527ffb1275764b13ed5db4ff1da64c40d4d2cf73affacb33ca24acea09c5bbe891f9116f0d11

Download Submit
memory/2516-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2516-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2516-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3004-12-0x0000000000CF0000-0x0000000000D05000-memory.dmp

Filesize
84KB

Download
memory/3004-15-0x0000000000CF0000-0x0000000000D05000-memory.dmp

Filesize
84KB

Download
memory/3004-16-0x0000000000CF0000-0x0000000000D05000-memory.dmp

Filesize
84KB

Download
memory/3004-17-0x0000000000CF0000-0x0000000000D05000-memory.dmp

Filesize
84KB

Download
memory/4180-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4180-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4180-8-0x00000000021B0000-0x00000000021C3000-memory.dmp

Filesize
76KB

Download
memory/4180-7-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/4180-1-0x00000000021B0000-0x00000000021C3000-memory.dmp

Filesize
76KB

Download
memory/4180-0-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/4180-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads