tofsee | c466c81252bad216e977913ad8ca17ba679e9e3face818c2ba85bb8bbc5a9346

General

Target

JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe
Size

12.5MB
MD5

6d2c4d0bb3c69b3ef5c0580bf12811c0
SHA1

ab43ca8fabbb2dde3b73faa2bb6c6ae49c119345
SHA256

c466c81252bad216e977913ad8ca17ba679e9e3face818c2ba85bb8bbc5a9346
SHA512

73c5cdde6145fd1e3c13e2e993482c2f5611db339ff6e91ccaacbc7a0bbc02f80a4b08278a342abb64b9a44f04a93b9381f75237d9a93ff1a29dafd50268f2ec
SSDEEP

24576:1/FfqVdOBr70Fm09999999999999999999999999999999999999999999999991:RFU

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

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
1564	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\busdqest\ImagePath = "C:\\Windows\\SysWOW64\\busdqest\\vocogacp.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe

Deletes itself 1 IoCs

pid	Process
1976	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1924	vocogacp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1924 set thread context of 1976	1924	vocogacp.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
2960	sc.exe
3428	sc.exe
2160	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
3652	704	WerFault.exe	82
2996	1924	WerFault.exe	93

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vocogacp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe
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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 704 wrote to memory of 5064	704	JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe	83
PID 704 wrote to memory of 5064	704	JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe	83
PID 704 wrote to memory of 5064	704	JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe	83
PID 704 wrote to memory of 3840	704	JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe	85
PID 704 wrote to memory of 3840	704	JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe	85
PID 704 wrote to memory of 3840	704	JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe	85
PID 704 wrote to memory of 2160	704	JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe	87
PID 704 wrote to memory of 2160	704	JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe	87
PID 704 wrote to memory of 2160	704	JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe	87
PID 704 wrote to memory of 2960	704	JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe	89
PID 704 wrote to memory of 2960	704	JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe	89
PID 704 wrote to memory of 2960	704	JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe	89
PID 704 wrote to memory of 3428	704	JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe	91
PID 704 wrote to memory of 3428	704	JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe	91
PID 704 wrote to memory of 3428	704	JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe	91
PID 704 wrote to memory of 1564	704	JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe	94
PID 704 wrote to memory of 1564	704	JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe	94
PID 704 wrote to memory of 1564	704	JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe	94
PID 1924 wrote to memory of 1976	1924	vocogacp.exe	100
PID 1924 wrote to memory of 1976	1924	vocogacp.exe	100
PID 1924 wrote to memory of 1976	1924	vocogacp.exe	100
PID 1924 wrote to memory of 1976	1924	vocogacp.exe	100
PID 1924 wrote to memory of 1976	1924	vocogacp.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\busdqest\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5064
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vocogacp.exe" C:\Windows\SysWOW64\busdqest\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3840
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create busdqest binPath= "C:\Windows\SysWOW64\busdqest\vocogacp.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2160
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description busdqest "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start busdqest
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3428
- 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:1564
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 704 -s 1040
  2⤵
  - Program crash
  PID:3652

C:\Windows\SysWOW64\busdqest\vocogacp.exe
C:\Windows\SysWOW64\busdqest\vocogacp.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6d2c4d0bb3c69b3ef5c0580bf12811c0.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1924
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1924 -s 512
  2⤵
  - Program crash
  PID:2996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 704 -ip 704
1⤵
PID:4732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1924 -ip 1924
1⤵
PID:4328

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\vocogacp.exe

Filesize
10.5MB

MD5
532dcdf933682ec49aca1777b569bfe5

SHA1
ece1f3a39e6393d57d61e0573715bec7392c5f70

SHA256
bde63bda4a343db5f4d702748ef8e78f985028f6a3b83359559a1272de62d331

SHA512
4a03635d960a1206fa98cfe4e120b9740f716f663c1146c178257f5860f4d845a981a58dcc5b76d03b00d8d32ae3b2f8c7684da2d56765f0e03f456bd54d5571

Download Submit
memory/704-1-0x0000000000970000-0x0000000000A70000-memory.dmp

Filesize
1024KB

Download
memory/704-2-0x00000000008F0000-0x0000000000903000-memory.dmp

Filesize
76KB

Download
memory/704-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/704-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/704-9-0x00000000008F0000-0x0000000000903000-memory.dmp

Filesize
76KB

Download
memory/704-8-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1924-11-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1924-16-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1976-12-0x0000000000D80000-0x0000000000D95000-memory.dmp

Filesize
84KB

Download
memory/1976-14-0x0000000000D80000-0x0000000000D95000-memory.dmp

Filesize
84KB

Download
memory/1976-15-0x0000000000D80000-0x0000000000D95000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads