tofsee | 8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54

General

Target

JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe
Size

241KB
MD5

0ae6c8339377c3855ddadcad76673d8a
SHA1

ce2b58ab96ef3790ce55307ee3d7c04399b3e821
SHA256

8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54
SHA512

0d99817de8f5450c05303eafb81d533003ef77f1df8a59d5ae068675ecbba15f00d80d1da307e5eb02a74ebfb4c8d7f2ed3ee64b51995dbaa0644d36a68d42df
SSDEEP

3072:GOsUA8KZQ/IxsPVg4nkvzaHWgSjqdF0w2Uyopz9ZeCqJXXfehv1Ijoxw9xk:oUA8GV2e4nYWHEjqPt9cCqxmhv1pxQ

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
3604	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\tffmjhzq\ImagePath = "C:\\Windows\\SysWOW64\\tffmjhzq\\wqmsdnfl.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe

Deletes itself 1 IoCs

pid	Process
2544	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
560	wqmsdnfl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 560 set thread context of 2544	560	wqmsdnfl.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
2780	sc.exe
2736	sc.exe
2376	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4736	3740	WerFault.exe	81
1804	560	WerFault.exe	92

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	wqmsdnfl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3740 wrote to memory of 3508	3740	JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe	82
PID 3740 wrote to memory of 3508	3740	JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe	82
PID 3740 wrote to memory of 3508	3740	JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe	82
PID 3740 wrote to memory of 4048	3740	JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe	84
PID 3740 wrote to memory of 4048	3740	JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe	84
PID 3740 wrote to memory of 4048	3740	JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe	84
PID 3740 wrote to memory of 2780	3740	JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe	86
PID 3740 wrote to memory of 2780	3740	JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe	86
PID 3740 wrote to memory of 2780	3740	JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe	86
PID 3740 wrote to memory of 2736	3740	JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe	88
PID 3740 wrote to memory of 2736	3740	JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe	88
PID 3740 wrote to memory of 2736	3740	JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe	88
PID 3740 wrote to memory of 2376	3740	JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe	90
PID 3740 wrote to memory of 2376	3740	JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe	90
PID 3740 wrote to memory of 2376	3740	JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe	90
PID 3740 wrote to memory of 3604	3740	JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe	93
PID 3740 wrote to memory of 3604	3740	JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe	93
PID 3740 wrote to memory of 3604	3740	JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe	93
PID 560 wrote to memory of 2544	560	wqmsdnfl.exe	98
PID 560 wrote to memory of 2544	560	wqmsdnfl.exe	98
PID 560 wrote to memory of 2544	560	wqmsdnfl.exe	98
PID 560 wrote to memory of 2544	560	wqmsdnfl.exe	98
PID 560 wrote to memory of 2544	560	wqmsdnfl.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3740
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tffmjhzq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3508
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wqmsdnfl.exe" C:\Windows\SysWOW64\tffmjhzq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4048
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tffmjhzq binPath= "C:\Windows\SysWOW64\tffmjhzq\wqmsdnfl.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tffmjhzq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2736
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tffmjhzq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2376
- 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:3604
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3740 -s 1040
  2⤵
  - Program crash
  PID:4736

C:\Windows\SysWOW64\tffmjhzq\wqmsdnfl.exe
C:\Windows\SysWOW64\tffmjhzq\wqmsdnfl.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8d5cf5412047ce007f13174937a4d7664bf97816b1b274f887c5b91eecfd3e54.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:560
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2544
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 560 -s 524
  2⤵
  - Program crash
  PID:1804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3740 -ip 3740
1⤵
PID:4296

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 560 -ip 560
1⤵
PID:1288

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\wqmsdnfl.exe

Filesize
11.2MB

MD5
1e728c14246dfc9e7d152738730e1cc6

SHA1
d4e7472a9853bff367f200653b733e82b6052fed

SHA256
82eee7b8979d8fd931e53d9a131a0bebdb56b468df219615d4b158f54859e410

SHA512
3a157c4bda0fe4b28802318ec77baed50d8ea632604b857fba8051d17ab9ad9f293d460ff6ee4ac781008b2f4c6f2be1e6f51fb3588fd83449b238473b84998d

Download Submit
memory/560-15-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/560-11-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/560-16-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/2544-12-0x0000000000440000-0x0000000000455000-memory.dmp

Filesize
84KB

Download
memory/2544-14-0x0000000000440000-0x0000000000455000-memory.dmp

Filesize
84KB

Download
memory/2544-17-0x0000000000440000-0x0000000000455000-memory.dmp

Filesize
84KB

Download
memory/3740-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3740-2-0x0000000000E00000-0x0000000000E13000-memory.dmp

Filesize
76KB

Download
memory/3740-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3740-9-0x0000000000E00000-0x0000000000E13000-memory.dmp

Filesize
76KB

Download
memory/3740-8-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/3740-1-0x0000000000B90000-0x0000000000C90000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads