tofsee | f4cfa45ff195fb3fe470b75d9d3c8b6d8a8d8741a6e1401ba5eb494c27dd4090

General

Target

JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe
Size

12.8MB
MD5

5dfcaf4e5871ac873611bd6f471ef2fc
SHA1

4e629c67eea486e000f176945c1432db02ff762d
SHA256

f4cfa45ff195fb3fe470b75d9d3c8b6d8a8d8741a6e1401ba5eb494c27dd4090
SHA512

b949db654cc28ae03a1e83953fe608a3990b5dc37d9145ca011d4ba43f0d1d0bc54c18a7c85f648b141230db65d4168701a0ccd0d151ce71b2d4071b201684cb
SSDEEP

6144:kNvMXNc7x72uNJFeTgkYIvpjkHp2e7z+/uyAmMGwDkqyyyyyyyyyyyyyyyyyyyyi:kNvM9i7fNJFeTgk9BjkHp2Euu1mr

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
3532	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\tijqyhtn\ImagePath = "C:\\Windows\\SysWOW64\\tijqyhtn\\fhbqmiev.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe

Deletes itself 1 IoCs

pid	Process
224	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1996	fhbqmiev.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1996 set thread context of 224	1996	fhbqmiev.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
1644	sc.exe
972	sc.exe
2880	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
2220	1716	WerFault.exe	84
4784	1996	WerFault.exe	96

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_5dfcaf4e5871ac873611bd6f471ef2fc.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	fhbqmiev.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1716 wrote to memory of 2984	1716	JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe	85
PID 1716 wrote to memory of 2984	1716	JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe	85
PID 1716 wrote to memory of 2984	1716	JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe	85
PID 1716 wrote to memory of 1152	1716	JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe	87
PID 1716 wrote to memory of 1152	1716	JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe	87
PID 1716 wrote to memory of 1152	1716	JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe	87
PID 1716 wrote to memory of 1644	1716	JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe	90
PID 1716 wrote to memory of 1644	1716	JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe	90
PID 1716 wrote to memory of 1644	1716	JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe	90
PID 1716 wrote to memory of 972	1716	JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe	92
PID 1716 wrote to memory of 972	1716	JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe	92
PID 1716 wrote to memory of 972	1716	JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe	92
PID 1716 wrote to memory of 2880	1716	JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe	94
PID 1716 wrote to memory of 2880	1716	JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe	94
PID 1716 wrote to memory of 2880	1716	JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe	94
PID 1716 wrote to memory of 3532	1716	JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe	97
PID 1716 wrote to memory of 3532	1716	JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe	97
PID 1716 wrote to memory of 3532	1716	JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe	97
PID 1996 wrote to memory of 224	1996	fhbqmiev.exe	103
PID 1996 wrote to memory of 224	1996	fhbqmiev.exe	103
PID 1996 wrote to memory of 224	1996	fhbqmiev.exe	103
PID 1996 wrote to memory of 224	1996	fhbqmiev.exe	103
PID 1996 wrote to memory of 224	1996	fhbqmiev.exe	103

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1716
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tijqyhtn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2984
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fhbqmiev.exe" C:\Windows\SysWOW64\tijqyhtn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1152
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tijqyhtn binPath= "C:\Windows\SysWOW64\tijqyhtn\fhbqmiev.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1644
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tijqyhtn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:972
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tijqyhtn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2880
- 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:3532
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 576
  2⤵
  - Program crash
  PID:2220

C:\Windows\SysWOW64\tijqyhtn\fhbqmiev.exe
C:\Windows\SysWOW64\tijqyhtn\fhbqmiev.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5dfcaf4e5871ac873611bd6f471ef2fc.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1996
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:224
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1996 -s 516
  2⤵
  - Program crash
  PID:4784

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1716 -ip 1716
1⤵
PID:4484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1996 -ip 1996
1⤵
PID:1296

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\fhbqmiev.exe

Filesize
12.8MB

MD5
5bf8cbde945501a7057445d26c1c06b0

SHA1
11f549e7cd6b5d8c1068a154b023b03b64d25aa0

SHA256
b579e854114938619db754d196bbcebc4564dbcb724384171e40e4b0acfbe6de

SHA512
afec522e07c448863ef4c19ebbc80172a375e1d0ab5e8419df1eae8c2b4fce94abbdec8d6a6d1aa783f9858063fa4d5824652711544b296c0756869c282dfd21

Download Submit
memory/224-12-0x0000000000B70000-0x0000000000B85000-memory.dmp

Filesize
84KB

Download
memory/224-14-0x0000000000B70000-0x0000000000B85000-memory.dmp

Filesize
84KB

Download
memory/224-15-0x0000000000B70000-0x0000000000B85000-memory.dmp

Filesize
84KB

Download
memory/1716-2-0x0000000000820000-0x0000000000833000-memory.dmp

Filesize
76KB

Download
memory/1716-1-0x0000000000850000-0x0000000000950000-memory.dmp

Filesize
1024KB

Download
memory/1716-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1716-9-0x0000000000820000-0x0000000000833000-memory.dmp

Filesize
76KB

Download
memory/1716-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1716-8-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/1996-11-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/1996-17-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads