tofsee | 6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab

General

Target

JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe
Size

167KB
MD5

249fdfe48e87781f9afc019e32386aac
SHA1

07cd4328635c81f4884a63f84b6bfd0e307a61ae
SHA256

6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab
SHA512

f5696faddf8edd51f04681c391cc6c92dd0e66cf80c521134b472de6488e0016a9b3958d6e0de6cf61c6913463dea053c8c89bdac74a26b8d9b2289c418f5377
SSDEEP

3072:P9tPi1h6wejM/fvv0qqgikN3KAaf5gitpr6uerWcCS9H6dY3:l5i333/fGgizrMCEad

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
4768	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\ixfdieyc\ImagePath = "C:\\Windows\\SysWOW64\\ixfdieyc\\wmhtnzdv.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe

Deletes itself 1 IoCs

pid	Process
3944	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1372	wmhtnzdv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1372 set thread context of 3944	1372	wmhtnzdv.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
2528	sc.exe
1328	sc.exe
3896	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
4712	748	WerFault.exe	81
4700	1372	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	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	wmhtnzdv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.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	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 748 wrote to memory of 1976	748	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	82
PID 748 wrote to memory of 1976	748	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	82
PID 748 wrote to memory of 1976	748	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	82
PID 748 wrote to memory of 2692	748	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	84
PID 748 wrote to memory of 2692	748	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	84
PID 748 wrote to memory of 2692	748	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	84
PID 748 wrote to memory of 2528	748	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	88
PID 748 wrote to memory of 2528	748	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	88
PID 748 wrote to memory of 2528	748	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	88
PID 748 wrote to memory of 1328	748	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	90
PID 748 wrote to memory of 1328	748	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	90
PID 748 wrote to memory of 1328	748	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	90
PID 748 wrote to memory of 3896	748	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	93
PID 748 wrote to memory of 3896	748	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	93
PID 748 wrote to memory of 3896	748	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	93
PID 748 wrote to memory of 4768	748	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	97
PID 748 wrote to memory of 4768	748	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	97
PID 748 wrote to memory of 4768	748	JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe	97
PID 1372 wrote to memory of 3944	1372	wmhtnzdv.exe	102
PID 1372 wrote to memory of 3944	1372	wmhtnzdv.exe	102
PID 1372 wrote to memory of 3944	1372	wmhtnzdv.exe	102
PID 1372 wrote to memory of 3944	1372	wmhtnzdv.exe	102
PID 1372 wrote to memory of 3944	1372	wmhtnzdv.exe	102

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:748
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ixfdieyc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1976
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wmhtnzdv.exe" C:\Windows\SysWOW64\ixfdieyc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ixfdieyc binPath= "C:\Windows\SysWOW64\ixfdieyc\wmhtnzdv.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2528
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ixfdieyc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1328
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ixfdieyc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3896
- 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:4768
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 748 -s 1036
  2⤵
  - Program crash
  PID:4712

C:\Windows\SysWOW64\ixfdieyc\wmhtnzdv.exe
C:\Windows\SysWOW64\ixfdieyc\wmhtnzdv.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e8c5874269f258b6bff19eec8e04729932626f6edb7e61dbe564f3cc7255cab.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1372
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3944
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1372 -s 512
  2⤵
  - Program crash
  PID:4700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 748 -ip 748
1⤵
PID:4036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1372 -ip 1372
1⤵
PID:4316

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\wmhtnzdv.exe

Filesize
13.5MB

MD5
d09f33a01a4840dd9ae53060632ffab2

SHA1
3c1881096939f196f2705c7fb829b5cacaca116c

SHA256
76fb18368715e7e4cbca3cd44ed51b72e84373c67ce68e4c64e754dd634dd2d2

SHA512
166f8e42c5184d4411d975d4980bf345e430169d4efb5ef378b5a4da7ac072d2881b22c542773dd2150ba565f61bf4ff6fb8286a567b888438759ea17fa58d40

Download Submit
memory/748-8-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/748-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/748-2-0x0000000002200000-0x0000000002213000-memory.dmp

Filesize
76KB

Download
memory/748-9-0x0000000002200000-0x0000000002213000-memory.dmp

Filesize
76KB

Download
memory/748-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/748-1-0x0000000000660000-0x0000000000760000-memory.dmp

Filesize
1024KB

Download
memory/1372-11-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1372-12-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1372-13-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1372-18-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3944-14-0x0000000000C60000-0x0000000000C75000-memory.dmp

Filesize
84KB

Download
memory/3944-16-0x0000000000C60000-0x0000000000C75000-memory.dmp

Filesize
84KB

Download
memory/3944-17-0x0000000000C60000-0x0000000000C75000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads