tofsee | 2dd88c2cf5f3ad49a46e6cfb88ec470423992ea5365fb55f7890af7e3d704662

General

Target

c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe
Size

13.5MB
MD5

c12142a8710fe99c29101f78dd31d5d7
SHA1

4c638ca8cdb0c581ba1323101b485973d724b917
SHA256

2dd88c2cf5f3ad49a46e6cfb88ec470423992ea5365fb55f7890af7e3d704662
SHA512

0944f49c54d4f488d55a477ff3767c72a3807148718e63745cf0795b570be48a7baf6fb3d5f19747918897c5cce588d1fcc60bbd6b91bfdc85de0546d9b64100
SSDEEP

49152:RT81MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMk:RT8

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
540	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\ezfeaobz\ImagePath = "C:\\Windows\\SysWOW64\\ezfeaobz\\ojyinski.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	c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
1656	ojyinski.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1656 set thread context of 4076	1656	ojyinski.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
3516	sc.exe
4708	sc.exe
4300	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

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ojyinski.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 924 wrote to memory of 5012	924	c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe	83
PID 924 wrote to memory of 5012	924	c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe	83
PID 924 wrote to memory of 5012	924	c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe	83
PID 924 wrote to memory of 2096	924	c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe	85
PID 924 wrote to memory of 2096	924	c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe	85
PID 924 wrote to memory of 2096	924	c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe	85
PID 924 wrote to memory of 4708	924	c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe	87
PID 924 wrote to memory of 4708	924	c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe	87
PID 924 wrote to memory of 4708	924	c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe	87
PID 924 wrote to memory of 4300	924	c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe	90
PID 924 wrote to memory of 4300	924	c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe	90
PID 924 wrote to memory of 4300	924	c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe	90
PID 924 wrote to memory of 3516	924	c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe	92
PID 924 wrote to memory of 3516	924	c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe	92
PID 924 wrote to memory of 3516	924	c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe	92
PID 924 wrote to memory of 540	924	c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe	95
PID 924 wrote to memory of 540	924	c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe	95
PID 924 wrote to memory of 540	924	c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe	95
PID 1656 wrote to memory of 4076	1656	ojyinski.exe	97
PID 1656 wrote to memory of 4076	1656	ojyinski.exe	97
PID 1656 wrote to memory of 4076	1656	ojyinski.exe	97
PID 1656 wrote to memory of 4076	1656	ojyinski.exe	97
PID 1656 wrote to memory of 4076	1656	ojyinski.exe	97

C:\Users\Admin\AppData\Local\Temp\c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:924
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ezfeaobz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ojyinski.exe" C:\Windows\SysWOW64\ezfeaobz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2096
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ezfeaobz binPath= "C:\Windows\SysWOW64\ezfeaobz\ojyinski.exe /d\"C:\Users\Admin\AppData\Local\Temp\c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ezfeaobz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4300
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ezfeaobz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3516
- 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:540

C:\Windows\SysWOW64\ezfeaobz\ojyinski.exe
C:\Windows\SysWOW64\ezfeaobz\ojyinski.exe /d"C:\Users\Admin\AppData\Local\Temp\c12142a8710fe99c29101f78dd31d5d7_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1656
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - System Location Discovery: System Language Discovery
  PID:4076

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\ojyinski.exe

Filesize
13.4MB

MD5
f023f027ced36db09624e167f6fe9a60

SHA1
b9cd916c32976dc8f28be3c068d6858e470b4209

SHA256
bfb07b9cae4fb3d46d55ae7e524bc45f55f06817d0e39742b09fad1fafffeddd

SHA512
fc43567827ea54dfe784ea0f5018da48d3aaf9275e2d92ccfd3f5fe6e33f44916e14feb973e972d16a06e9c04464e844ee9ac8185e0cc43adf535ff8fbc60df7

Download Submit
memory/924-11-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/924-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/924-2-0x00000000006D0000-0x00000000006E3000-memory.dmp

Filesize
76KB

Download
memory/924-1-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/924-12-0x00000000006D0000-0x00000000006E3000-memory.dmp

Filesize
76KB

Download
memory/924-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/924-14-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1656-8-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/1656-16-0x0000000000400000-0x000000000046E000-memory.dmp

Filesize
440KB

Download
memory/4076-9-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/4076-17-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/4076-18-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads