tofsee | 181e6f88cf32348d8247bb3c4deb07bf44b677656b43b37a30dfad4a3b3e2935

General

Target

JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe
Size

12.1MB
MD5

0906ff34f48334d4563ca2df39b3cef7
SHA1

289a0a4287b6e42e680a9b7efa0585fd97708f2e
SHA256

181e6f88cf32348d8247bb3c4deb07bf44b677656b43b37a30dfad4a3b3e2935
SHA512

41545edf3fc63015f8bf2d094de7c17688889fbf4956fadd0b2447da2a870967606ad06971b3db4f28de7e8c777a1dcfec67bb8a99454d1598f1a42bb20580f6
SSDEEP

196608:gXPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP/:g

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
2032	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\krydhoxa\ImagePath = "C:\\Windows\\SysWOW64\\krydhoxa\\qcjdiobj.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_0906ff34f48334d4563ca2df39b3cef7.exe

Deletes itself 1 IoCs

pid	Process
3256	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1968	qcjdiobj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1968 set thread context of 3256	1968	qcjdiobj.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4496	sc.exe
516	sc.exe
4900	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
4212	1832	WerFault.exe	81
3684	1968	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	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qcjdiobj.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1832 wrote to memory of 220	1832	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	82
PID 1832 wrote to memory of 220	1832	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	82
PID 1832 wrote to memory of 220	1832	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	82
PID 1832 wrote to memory of 3156	1832	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	84
PID 1832 wrote to memory of 3156	1832	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	84
PID 1832 wrote to memory of 3156	1832	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	84
PID 1832 wrote to memory of 4496	1832	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	86
PID 1832 wrote to memory of 4496	1832	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	86
PID 1832 wrote to memory of 4496	1832	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	86
PID 1832 wrote to memory of 516	1832	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	88
PID 1832 wrote to memory of 516	1832	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	88
PID 1832 wrote to memory of 516	1832	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	88
PID 1832 wrote to memory of 4900	1832	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	90
PID 1832 wrote to memory of 4900	1832	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	90
PID 1832 wrote to memory of 4900	1832	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	90
PID 1832 wrote to memory of 2032	1832	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	93
PID 1832 wrote to memory of 2032	1832	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	93
PID 1832 wrote to memory of 2032	1832	JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe	93
PID 1968 wrote to memory of 3256	1968	qcjdiobj.exe	98
PID 1968 wrote to memory of 3256	1968	qcjdiobj.exe	98
PID 1968 wrote to memory of 3256	1968	qcjdiobj.exe	98
PID 1968 wrote to memory of 3256	1968	qcjdiobj.exe	98
PID 1968 wrote to memory of 3256	1968	qcjdiobj.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1832
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\krydhoxa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:220
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qcjdiobj.exe" C:\Windows\SysWOW64\krydhoxa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3156
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create krydhoxa binPath= "C:\Windows\SysWOW64\krydhoxa\qcjdiobj.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4496
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description krydhoxa "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:516
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start krydhoxa
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4900
- 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:2032
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1832 -s 596
  2⤵
  - Program crash
  PID:4212

C:\Windows\SysWOW64\krydhoxa\qcjdiobj.exe
C:\Windows\SysWOW64\krydhoxa\qcjdiobj.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0906ff34f48334d4563ca2df39b3cef7.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3256
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1968 -s 532
  2⤵
  - Program crash
  PID:3684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1832 -ip 1832
1⤵
PID:3236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1968 -ip 1968
1⤵
PID:5096

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\qcjdiobj.exe

Filesize
11.9MB

MD5
d76bc56801be9c2817b561c8929d7b7b

SHA1
42ec610de9d4b85dc65877314348f133bb3ae051

SHA256
a4b928ccad0964f42dcf166a1a779b22c5f7de69d005c8f8b2f5e3106367d9da

SHA512
adb54b52850a5a3ff3e2ba9de768f60296b5b09889dc83870b5b52483a7ad2a75fc0d4eeeb0b94ea59facfd34996ccc2b2f6750b354e07675525694a7e486fb3

Download Submit
memory/1832-8-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/1832-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1832-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1832-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1832-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1832-1-0x0000000000B00000-0x0000000000C00000-memory.dmp

Filesize
1024KB

Download
memory/1968-16-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/1968-12-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/1968-11-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/3256-15-0x00000000009B0000-0x00000000009C5000-memory.dmp

Filesize
84KB

Download
memory/3256-13-0x00000000009B0000-0x00000000009C5000-memory.dmp

Filesize
84KB

Download
memory/3256-17-0x00000000009B0000-0x00000000009C5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads