tofsee | 52a94a2896aa197e2bed53e7cac93e55be17aa9e461a3fc31d88752aedfc33e4

General

Target

74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe
Size

13.8MB
MD5

74dc2690a43fc65a8b0bb7daec660407
SHA1

944614d079eb7808dd23feee5c7eb54897f6b117
SHA256

52a94a2896aa197e2bed53e7cac93e55be17aa9e461a3fc31d88752aedfc33e4
SHA512

13d59dae9b7288aeb1c1662a0be06c5e72161dca8f663ae07b91e20a3d49b3e351cc7cda13565252a5107579b2125944f3e566d9507330dea3a49a0dae0611e4
SSDEEP

24576:uPTYeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee3:uP

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
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
2344	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\luodeak\ImagePath = "C:\\Windows\\SysWOW64\\luodeak\\otphfiu.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	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
4772	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1124	otphfiu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1124 set thread context of 4772	1124	otphfiu.exe	108

Launches sc.exe 3 IoCs

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

pid	Process
1544	sc.exe
636	sc.exe
4692	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
4732	3032	WerFault.exe	84
3180	1124	WerFault.exe	99

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	otphfiu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3032 wrote to memory of 2900	3032	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	87
PID 3032 wrote to memory of 2900	3032	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	87
PID 3032 wrote to memory of 2900	3032	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	87
PID 3032 wrote to memory of 3012	3032	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	89
PID 3032 wrote to memory of 3012	3032	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	89
PID 3032 wrote to memory of 3012	3032	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	89
PID 3032 wrote to memory of 1544	3032	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	91
PID 3032 wrote to memory of 1544	3032	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	91
PID 3032 wrote to memory of 1544	3032	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	91
PID 3032 wrote to memory of 636	3032	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	95
PID 3032 wrote to memory of 636	3032	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	95
PID 3032 wrote to memory of 636	3032	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	95
PID 3032 wrote to memory of 4692	3032	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	97
PID 3032 wrote to memory of 4692	3032	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	97
PID 3032 wrote to memory of 4692	3032	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	97
PID 3032 wrote to memory of 2344	3032	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	101
PID 3032 wrote to memory of 2344	3032	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	101
PID 3032 wrote to memory of 2344	3032	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	101
PID 1124 wrote to memory of 4772	1124	otphfiu.exe	108
PID 1124 wrote to memory of 4772	1124	otphfiu.exe	108
PID 1124 wrote to memory of 4772	1124	otphfiu.exe	108
PID 1124 wrote to memory of 4772	1124	otphfiu.exe	108
PID 1124 wrote to memory of 4772	1124	otphfiu.exe	108

C:\Users\Admin\AppData\Local\Temp\74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\luodeak\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2900
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\otphfiu.exe" C:\Windows\SysWOW64\luodeak\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create luodeak binPath= "C:\Windows\SysWOW64\luodeak\otphfiu.exe /d\"C:\Users\Admin\AppData\Local\Temp\74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1544
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description luodeak "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:636
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start luodeak
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4692
- 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:2344
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 1044
  2⤵
  - Program crash
  PID:4732

C:\Windows\SysWOW64\luodeak\otphfiu.exe
C:\Windows\SysWOW64\luodeak\otphfiu.exe /d"C:\Users\Admin\AppData\Local\Temp\74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1124
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4772
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1124 -s 512
  2⤵
  - Program crash
  PID:3180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3032 -ip 3032
1⤵
PID:2808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1124 -ip 1124
1⤵
PID:888

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\otphfiu.exe

Filesize
14.0MB

MD5
ec7df506478962aed5b35d480dc5d806

SHA1
0a30ae3373e95fb13ad76321cff9fbc40dff1495

SHA256
43f555ecb7cf31c74342fd50c2b8c418f216b8e92f1b37873b4726a01e6d51d8

SHA512
4703cce3ca04eb7a51d72d7864e253f1c09f566593e20051f08e650a0e7aaaa7d030b9c88322a200bc88c0079289273f08da4458be1ea01a9e3be14c8c27a9d2

Download Submit
memory/1124-12-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1124-11-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1124-13-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1124-18-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3032-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3032-2-0x00000000020C0000-0x00000000020D3000-memory.dmp

Filesize
76KB

Download
memory/3032-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3032-9-0x00000000020C0000-0x00000000020D3000-memory.dmp

Filesize
76KB

Download
memory/3032-8-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3032-1-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/4772-14-0x0000000000860000-0x0000000000875000-memory.dmp

Filesize
84KB

Download
memory/4772-16-0x0000000000860000-0x0000000000875000-memory.dmp

Filesize
84KB

Download
memory/4772-17-0x0000000000860000-0x0000000000875000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads