tofsee | 67729ca5a906673b68e97c49031e4d3b7349f39e83e75d82f28f435eaee47636

General

Target

JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe
Size

10.6MB
MD5

c2398c801dfe310d7ad448c4a0723027
SHA1

5ccce6758b684103f7c64b638b7e40df83c80b82
SHA256

67729ca5a906673b68e97c49031e4d3b7349f39e83e75d82f28f435eaee47636
SHA512

e6fdd95a7362770e3ed2d48015f69141edf62fa1122881e019f20633f98b6dc3d8f7685c0d6a77f0b31d8ef6ec950def2aaf01901f76a674305b6da4c9f14437
SSDEEP

3072:qMvoJ8oyOUQmaEa1otqKjHJSQEb/PUNnrU0vyHeN2hFRsGcPEH/UnpkWxeVxENO3:qMvw8F3QDEFgIpb8U92ebznbxe4

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.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
2880	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\uhqnutyq\ImagePath = "C:\\Windows\\SysWOW64\\uhqnutyq\\rdkejpck.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe

Deletes itself 1 IoCs

pid	Process
1280	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
212	rdkejpck.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 212 set thread context of 1280	212	rdkejpck.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
3460	sc.exe
2116	sc.exe
2912	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	rdkejpck.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2472 wrote to memory of 2692	2472	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	83
PID 2472 wrote to memory of 2692	2472	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	83
PID 2472 wrote to memory of 2692	2472	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	83
PID 2472 wrote to memory of 4468	2472	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	85
PID 2472 wrote to memory of 4468	2472	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	85
PID 2472 wrote to memory of 4468	2472	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	85
PID 2472 wrote to memory of 2116	2472	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	87
PID 2472 wrote to memory of 2116	2472	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	87
PID 2472 wrote to memory of 2116	2472	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	87
PID 2472 wrote to memory of 2912	2472	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	89
PID 2472 wrote to memory of 2912	2472	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	89
PID 2472 wrote to memory of 2912	2472	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	89
PID 2472 wrote to memory of 3460	2472	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	92
PID 2472 wrote to memory of 3460	2472	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	92
PID 2472 wrote to memory of 3460	2472	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	92
PID 2472 wrote to memory of 2880	2472	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	95
PID 2472 wrote to memory of 2880	2472	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	95
PID 2472 wrote to memory of 2880	2472	JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe	95
PID 212 wrote to memory of 1280	212	rdkejpck.exe	97
PID 212 wrote to memory of 1280	212	rdkejpck.exe	97
PID 212 wrote to memory of 1280	212	rdkejpck.exe	97
PID 212 wrote to memory of 1280	212	rdkejpck.exe	97
PID 212 wrote to memory of 1280	212	rdkejpck.exe	97

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2472
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uhqnutyq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2692
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rdkejpck.exe" C:\Windows\SysWOW64\uhqnutyq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4468
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create uhqnutyq binPath= "C:\Windows\SysWOW64\uhqnutyq\rdkejpck.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2116
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description uhqnutyq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2912
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start uhqnutyq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3460
- 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:2880

C:\Windows\SysWOW64\uhqnutyq\rdkejpck.exe
C:\Windows\SysWOW64\uhqnutyq\rdkejpck.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c2398c801dfe310d7ad448c4a0723027.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:212
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1280

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
12.1MB

MD5
723c284af5d8c64b0d6a3b85a1fbf64e

SHA1
2372a248437f51ab7ca25d6d3e6c19adb287a613

SHA256
f05ef2d58a604ce5dc63b0cce77c970b0d898489c8659d3f7ad9ee25d623c1e5

SHA512
12dd60f2356f9dfb9814d216886456280802c73a417748553019ef95beb809079ad3c2088afda169c0232761873697e9cb753487c865aa30033bf637fa30a9c2

Download Submit
memory/212-13-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/212-11-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/212-17-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/1280-12-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/1280-15-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/1280-18-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/2472-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2472-2-0x00000000009C0000-0x00000000009D3000-memory.dmp

Filesize
76KB

Download
memory/2472-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2472-9-0x00000000009C0000-0x00000000009D3000-memory.dmp

Filesize
76KB

Download
memory/2472-8-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2472-1-0x0000000000B80000-0x0000000000C80000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads