tofsee | fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f

General

Target

JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe
Size

160KB
MD5

f7362c11138f5fb89143d4e97419b015
SHA1

f67454310411f4d89d34699b5faa8f5643806de6
SHA256

fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f
SHA512

c242fb26590cae181260ab8d8c786f69821d4131478c1d8a08beca116db329080eb28020b8636bc70907ced218913f802ec32e6621e349ebe13a596c090b6c12
SSDEEP

1536:9aCl+iglHErWOeaAnDt45cNQ6nVGAk/m1AR8bFgrTTN2FJpstlLnDe06IO4gGGH5:IFqSV7W5vnw7JSTrMIWQLDP9KmMFTe0

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
4976	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\lufbfrvi\ImagePath = "C:\\Windows\\SysWOW64\\lufbfrvi\\ohvhztvi.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe

Deletes itself 1 IoCs

pid	Process
1116	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
448	ohvhztvi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 448 set thread context of 1116	448	ohvhztvi.exe	93

Launches sc.exe 3 IoCs

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

pid	Process
1028	sc.exe
1488	sc.exe
2148	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1492	448	WerFault.exe	92
3648	4644	WerFault.exe	81

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_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.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	svchost.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	ohvhztvi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4644 wrote to memory of 3332	4644	JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe	82
PID 4644 wrote to memory of 3332	4644	JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe	82
PID 4644 wrote to memory of 3332	4644	JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe	82
PID 4644 wrote to memory of 4660	4644	JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe	84
PID 4644 wrote to memory of 4660	4644	JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe	84
PID 4644 wrote to memory of 4660	4644	JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe	84
PID 4644 wrote to memory of 1488	4644	JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe	86
PID 4644 wrote to memory of 1488	4644	JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe	86
PID 4644 wrote to memory of 1488	4644	JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe	86
PID 4644 wrote to memory of 2148	4644	JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe	88
PID 4644 wrote to memory of 2148	4644	JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe	88
PID 4644 wrote to memory of 2148	4644	JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe	88
PID 4644 wrote to memory of 1028	4644	JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe	90
PID 4644 wrote to memory of 1028	4644	JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe	90
PID 4644 wrote to memory of 1028	4644	JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe	90
PID 448 wrote to memory of 1116	448	ohvhztvi.exe	93
PID 448 wrote to memory of 1116	448	ohvhztvi.exe	93
PID 448 wrote to memory of 1116	448	ohvhztvi.exe	93
PID 448 wrote to memory of 1116	448	ohvhztvi.exe	93
PID 448 wrote to memory of 1116	448	ohvhztvi.exe	93
PID 4644 wrote to memory of 4976	4644	JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe	97
PID 4644 wrote to memory of 4976	4644	JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe	97
PID 4644 wrote to memory of 4976	4644	JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe	97

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4644
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lufbfrvi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3332
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ohvhztvi.exe" C:\Windows\SysWOW64\lufbfrvi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4660
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lufbfrvi binPath= "C:\Windows\SysWOW64\lufbfrvi\ohvhztvi.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1488
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lufbfrvi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2148
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lufbfrvi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1028
- 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:4976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 1184
  2⤵
  - Program crash
  PID:3648

C:\Windows\SysWOW64\lufbfrvi\ohvhztvi.exe
C:\Windows\SysWOW64\lufbfrvi\ohvhztvi.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fda6b81845b74210279a7797739ba4deddebf04f6b1b9a7dff4a38a793808e1f.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:448
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1116
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 448 -s 532
  2⤵
  - Program crash
  PID:1492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 448 -ip 448
1⤵
PID:4112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4644 -ip 4644
1⤵
PID:2104

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\ohvhztvi.exe

Filesize
10.6MB

MD5
cc027e4a5e13a25050ffd434ea521d4f

SHA1
c44edd567f195f318136369086506b13e7035fa8

SHA256
489be4c5b0b8d437039f6aadf63be76c204e698120c21b95ae55cf4f84e7d47a

SHA512
d0a8fe162a375df8053da49fdcbb964b06c21431642de6cacf0bcd4eccc60de852f170134d17711716c4615b0606a7bbedee045cd1974a773a209f21528e7dd1

Download Submit
memory/448-6-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/448-13-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/448-8-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/448-7-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1116-12-0x00000000004E0000-0x00000000004F5000-memory.dmp

Filesize
84KB

Download
memory/1116-9-0x00000000004E0000-0x00000000004F5000-memory.dmp

Filesize
84KB

Download
memory/1116-18-0x00000000004E0000-0x00000000004F5000-memory.dmp

Filesize
84KB

Download
memory/1116-19-0x00000000004E0000-0x00000000004F5000-memory.dmp

Filesize
84KB

Download
memory/1116-20-0x00000000004E0000-0x00000000004F5000-memory.dmp

Filesize
84KB

Download
memory/4644-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4644-0-0x00000000006E0000-0x00000000006ED000-memory.dmp

Filesize
52KB

Download
memory/4644-1-0x00000000021C0000-0x00000000021D3000-memory.dmp

Filesize
76KB

Download
memory/4644-16-0x00000000021C0000-0x00000000021D3000-memory.dmp

Filesize
76KB

Download
memory/4644-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4644-14-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4644-15-0x00000000006E0000-0x00000000006ED000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads