tofsee | 0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5

General

Target

JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe
Size

271KB
MD5

d10661dfbee9320316539edd6c2d1583
SHA1

eef33f22896d6393bba58445c75eae9d73d57b2c
SHA256

0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5
SHA512

1b242e28fbb0d1299a6b59044b82d6e395c3c61300d5d312b626d3f7aa7c758f92666813d1cfef41ab4a1486cd9a922dd232cd96d53bf238810b5ed3d8cde58b
SSDEEP

6144:9HFo/Rtx8btjppCB9xqiF8ASn0zl19pDJO:VC/Rtxehuj8nn0B19b

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
3000	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\ctdjouiv\ImagePath = "C:\\Windows\\SysWOW64\\ctdjouiv\\xmzvhgzl.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe

Deletes itself 1 IoCs

pid	Process
5088	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4084	xmzvhgzl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4084 set thread context of 5088	4084	xmzvhgzl.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
1472	sc.exe
3348	sc.exe
3984	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
2024	1412	WerFault.exe	84
2592	4084	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	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	xmzvhgzl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.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 1412 wrote to memory of 1600	1412	JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe	85
PID 1412 wrote to memory of 1600	1412	JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe	85
PID 1412 wrote to memory of 1600	1412	JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe	85
PID 1412 wrote to memory of 4396	1412	JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe	88
PID 1412 wrote to memory of 4396	1412	JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe	88
PID 1412 wrote to memory of 4396	1412	JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe	88
PID 1412 wrote to memory of 3348	1412	JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe	90
PID 1412 wrote to memory of 3348	1412	JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe	90
PID 1412 wrote to memory of 3348	1412	JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe	90
PID 1412 wrote to memory of 3984	1412	JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe	92
PID 1412 wrote to memory of 3984	1412	JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe	92
PID 1412 wrote to memory of 3984	1412	JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe	92
PID 1412 wrote to memory of 1472	1412	JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe	94
PID 1412 wrote to memory of 1472	1412	JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe	94
PID 1412 wrote to memory of 1472	1412	JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe	94
PID 1412 wrote to memory of 3000	1412	JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe	97
PID 1412 wrote to memory of 3000	1412	JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe	97
PID 1412 wrote to memory of 3000	1412	JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe	97
PID 4084 wrote to memory of 5088	4084	xmzvhgzl.exe	103
PID 4084 wrote to memory of 5088	4084	xmzvhgzl.exe	103
PID 4084 wrote to memory of 5088	4084	xmzvhgzl.exe	103
PID 4084 wrote to memory of 5088	4084	xmzvhgzl.exe	103
PID 4084 wrote to memory of 5088	4084	xmzvhgzl.exe	103

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1412
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ctdjouiv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1600
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xmzvhgzl.exe" C:\Windows\SysWOW64\ctdjouiv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4396
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ctdjouiv binPath= "C:\Windows\SysWOW64\ctdjouiv\xmzvhgzl.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3348
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ctdjouiv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3984
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ctdjouiv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1472
- 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:3000
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1412 -s 1036
  2⤵
  - Program crash
  PID:2024

C:\Windows\SysWOW64\ctdjouiv\xmzvhgzl.exe
C:\Windows\SysWOW64\ctdjouiv\xmzvhgzl.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0454f772bdaedebddddb0919b3d4fe7675d8fde17444778c27ac4c4ac65a6fa5.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4084
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5088
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4084 -s 508
  2⤵
  - Program crash
  PID:2592

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1412 -ip 1412
1⤵
PID:1528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4084 -ip 4084
1⤵
PID:2892

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\xmzvhgzl.exe

Filesize
14.0MB

MD5
775b34dc7c2a17384ec5b442f3203576

SHA1
775ef94791cbbe102fc9e3524a6ebc9cebef2f11

SHA256
5d1480900ad8ba2ca03e55b4afe21368e8f7fc935830c8767ddf08bea688506b

SHA512
26d21092c0d2f6365d606e9af85216bf8a4b613e9357dfd7b9a1ffdca7bf6377799ec8ab1722af7defb707b3d7f3c1bd0cbf5bcf2395fd123dbde8b91e75c805

Download Submit
memory/1412-8-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1412-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1412-2-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/1412-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1412-9-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/1412-1-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/4084-12-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4084-11-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4084-13-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4084-19-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/5088-14-0x0000000000460000-0x0000000000475000-memory.dmp

Filesize
84KB

Download
memory/5088-16-0x0000000000460000-0x0000000000475000-memory.dmp

Filesize
84KB

Download
memory/5088-17-0x0000000000460000-0x0000000000475000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads