tofsee | 876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662

General

Target

JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe
Size

284KB
MD5

980a1da409587438ce6ad9402f8ef025
SHA1

dc49bfc6d436dbd0a21fe23ff95280811f273c59
SHA256

876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662
SHA512

66391d577a8ba158ffa528d220ea51b6aa626c1c0d9716f4cd90739e7ed960a85594d3cb1419e49224e3f60508cbe3ebe06486df160302b82e3e86526313af14
SSDEEP

6144:UF0i1M8mVdb98uiaMBl1wRnhu8UJfPJZSGp:UF0i1MtVdb4a+wRn6fPJZNp

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
3372	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\ovmqvsvf\ImagePath = "C:\\Windows\\SysWOW64\\ovmqvsvf\\ipboxklf.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe

Deletes itself 1 IoCs

pid	Process
544	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2176	ipboxklf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2176 set thread context of 544	2176	ipboxklf.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4612	sc.exe
3036	sc.exe
1616	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
1060	3948	WerFault.exe	81
3600	2176	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_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ipboxklf.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3948 wrote to memory of 4976	3948	JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe	82
PID 3948 wrote to memory of 4976	3948	JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe	82
PID 3948 wrote to memory of 4976	3948	JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe	82
PID 3948 wrote to memory of 3648	3948	JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe	84
PID 3948 wrote to memory of 3648	3948	JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe	84
PID 3948 wrote to memory of 3648	3948	JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe	84
PID 3948 wrote to memory of 4612	3948	JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe	86
PID 3948 wrote to memory of 4612	3948	JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe	86
PID 3948 wrote to memory of 4612	3948	JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe	86
PID 3948 wrote to memory of 3036	3948	JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe	88
PID 3948 wrote to memory of 3036	3948	JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe	88
PID 3948 wrote to memory of 3036	3948	JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe	88
PID 3948 wrote to memory of 1616	3948	JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe	90
PID 3948 wrote to memory of 1616	3948	JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe	90
PID 3948 wrote to memory of 1616	3948	JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe	90
PID 3948 wrote to memory of 3372	3948	JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe	93
PID 3948 wrote to memory of 3372	3948	JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe	93
PID 3948 wrote to memory of 3372	3948	JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe	93
PID 2176 wrote to memory of 544	2176	ipboxklf.exe	98
PID 2176 wrote to memory of 544	2176	ipboxklf.exe	98
PID 2176 wrote to memory of 544	2176	ipboxklf.exe	98
PID 2176 wrote to memory of 544	2176	ipboxklf.exe	98
PID 2176 wrote to memory of 544	2176	ipboxklf.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3948
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ovmqvsvf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4976
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ipboxklf.exe" C:\Windows\SysWOW64\ovmqvsvf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3648
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ovmqvsvf binPath= "C:\Windows\SysWOW64\ovmqvsvf\ipboxklf.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4612
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ovmqvsvf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ovmqvsvf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1616
- 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:3372
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 1028
  2⤵
  - Program crash
  PID:1060

C:\Windows\SysWOW64\ovmqvsvf\ipboxklf.exe
C:\Windows\SysWOW64\ovmqvsvf\ipboxklf.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_876c483b6fbc54f63b315535e70f50c2f5cd37ca2331847ba4a8bc7035435662.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2176
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:544
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2176 -s 516
  2⤵
  - Program crash
  PID:3600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3948 -ip 3948
1⤵
PID:2132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 2176 -ip 2176
1⤵
PID:5052

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\ipboxklf.exe

Filesize
10.7MB

MD5
97851e75409e05812e9b414e763a8170

SHA1
3b91ac43c18389513b8f97860a28bd8ed862ddca

SHA256
c0458575c3667dfa29da41c3b3a2cb031152dcc6f7b294dc6292404a3e997c84

SHA512
8f15cc8f1c9fc029859127ac88eb0256c9433fcc353e7e058f6f67ff8a6f74508d6143a238aad06dcf9e2b0f70452d6f8bd8e1c692a5344c8617aa27a7a9de7d

Download Submit
memory/544-13-0x0000000000EA0000-0x0000000000EB5000-memory.dmp

Filesize
84KB

Download
memory/544-11-0x0000000000EA0000-0x0000000000EB5000-memory.dmp

Filesize
84KB

Download
memory/544-15-0x0000000000EA0000-0x0000000000EB5000-memory.dmp

Filesize
84KB

Download
memory/2176-14-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/3948-1-0x0000000002DA0000-0x0000000002EA0000-memory.dmp

Filesize
1024KB

Download
memory/3948-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3948-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3948-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3948-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3948-8-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads