tofsee | 0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5

General

Target

JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe
Size

187KB
MD5

25ba41269d69b8d9e36a657f5a693365
SHA1

64ac09b1ba11323a5722593080053e0a29338ff3
SHA256

0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5
SHA512

b05a807a75d82c9c639f623ee5d7af2f05d1002ea3fa74f167dd8f38b18a5b2d8de7b4ce094f05986b85afc6bf1c60b5ef1dfeac4f00188cfbf17dcb042c10b4
SSDEEP

3072:u7nkTvI0pZG/xfCbrUoBMs4IJvs0PmFVilOpZa9uD6Vdyhkf:++vI0pZG/xfC3UmywVf

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
5028	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\dnrzfrat\ImagePath = "C:\\Windows\\SysWOW64\\dnrzfrat\\renklqcp.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_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe

Deletes itself 1 IoCs

pid	Process
2888	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1228	renklqcp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1228 set thread context of 2888	1228	renklqcp.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
1304	sc.exe
428	sc.exe
1352	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	renklqcp.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1476 wrote to memory of 4884	1476	JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe	83
PID 1476 wrote to memory of 4884	1476	JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe	83
PID 1476 wrote to memory of 4884	1476	JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe	83
PID 1476 wrote to memory of 2100	1476	JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe	85
PID 1476 wrote to memory of 2100	1476	JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe	85
PID 1476 wrote to memory of 2100	1476	JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe	85
PID 1476 wrote to memory of 1352	1476	JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe	87
PID 1476 wrote to memory of 1352	1476	JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe	87
PID 1476 wrote to memory of 1352	1476	JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe	87
PID 1476 wrote to memory of 1304	1476	JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe	89
PID 1476 wrote to memory of 1304	1476	JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe	89
PID 1476 wrote to memory of 1304	1476	JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe	89
PID 1476 wrote to memory of 428	1476	JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe	92
PID 1476 wrote to memory of 428	1476	JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe	92
PID 1476 wrote to memory of 428	1476	JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe	92
PID 1476 wrote to memory of 5028	1476	JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe	95
PID 1476 wrote to memory of 5028	1476	JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe	95
PID 1476 wrote to memory of 5028	1476	JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe	95
PID 1228 wrote to memory of 2888	1228	renklqcp.exe	97
PID 1228 wrote to memory of 2888	1228	renklqcp.exe	97
PID 1228 wrote to memory of 2888	1228	renklqcp.exe	97
PID 1228 wrote to memory of 2888	1228	renklqcp.exe	97
PID 1228 wrote to memory of 2888	1228	renklqcp.exe	97

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1476
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dnrzfrat\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4884
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\renklqcp.exe" C:\Windows\SysWOW64\dnrzfrat\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2100
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dnrzfrat binPath= "C:\Windows\SysWOW64\dnrzfrat\renklqcp.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1352
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dnrzfrat "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1304
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dnrzfrat
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:428
- 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:5028

C:\Windows\SysWOW64\dnrzfrat\renklqcp.exe
C:\Windows\SysWOW64\dnrzfrat\renklqcp.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d92cf54954461c4a961d15745ee4b22a3aa6f27ce3387480e19c9bb5342cfb5.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1228
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2888

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\renklqcp.exe

Filesize
14.7MB

MD5
56c2223008d42c9108720150addf2b37

SHA1
8590b165750ce305ff1932125db421136b2c5f92

SHA256
4dd27ac466741f67f8dc7783b4542829b579e71077fbb2716995175f5a43c007

SHA512
3b54357d77860c5a270eb6e5322f2f92a12d0255383bc83f99ce5712207d0b91914232f786c618aa3df14e49e6f0b35e5c0ec1405184ca74f3795279b1d905df

Download Submit
memory/1228-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1228-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1228-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1228-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1476-8-0x0000000002060000-0x0000000002073000-memory.dmp

Filesize
76KB

Download
memory/1476-7-0x0000000000560000-0x000000000056D000-memory.dmp

Filesize
52KB

Download
memory/1476-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1476-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1476-0-0x0000000000560000-0x000000000056D000-memory.dmp

Filesize
52KB

Download
memory/1476-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1476-1-0x0000000002060000-0x0000000002073000-memory.dmp

Filesize
76KB

Download
memory/2888-13-0x0000000000F90000-0x0000000000FA5000-memory.dmp

Filesize
84KB

Download
memory/2888-15-0x0000000000F90000-0x0000000000FA5000-memory.dmp

Filesize
84KB

Download
memory/2888-18-0x0000000000F90000-0x0000000000FA5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads