tofsee | f06f8570f6999f01ade88f2c09538759e55539eb7c2d452999e1c66ca83e8c02

Analysis

max time kernel
143s
max time network
146s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 10:36

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General

Target

JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe
Size

14.1MB
MD5

c60a9d97501c8fccb7ce37b52654839b
SHA1

94fc047b6307fd89d39eaad454db89dc1d0809c4
SHA256

f06f8570f6999f01ade88f2c09538759e55539eb7c2d452999e1c66ca83e8c02
SHA512

5254c7f7f7164e27408bdaefe28b948a0b61e576161bd92d0aecefc7b327687e2f10c80ded601fbcfd0d799d887c4b3895e251d3db0a9ef50b3a58086a53ac45
SSDEEP

12288:R0Xz1CuwA5Rp0rp0rp0rp0rp0rp0rp0rp0rp0rp0rp0rp0rp0rp0rp0rp0rp0rpZ:R0X2

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\pvrlpend = "0"	svchost.exe

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
572	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\pvrlpend\ImagePath = "C:\\Windows\\SysWOW64\\pvrlpend\\vcobkxys.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1820	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2340	vcobkxys.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2340 set thread context of 1820	2340	vcobkxys.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2068	sc.exe
2808	sc.exe
2652	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	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.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	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	vcobkxys.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 2852	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	30
PID 2868 wrote to memory of 2852	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	30
PID 2868 wrote to memory of 2852	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	30
PID 2868 wrote to memory of 2852	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	30
PID 2868 wrote to memory of 2644	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	32
PID 2868 wrote to memory of 2644	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	32
PID 2868 wrote to memory of 2644	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	32
PID 2868 wrote to memory of 2644	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	32
PID 2868 wrote to memory of 2068	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	34
PID 2868 wrote to memory of 2068	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	34
PID 2868 wrote to memory of 2068	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	34
PID 2868 wrote to memory of 2068	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	34
PID 2868 wrote to memory of 2808	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	36
PID 2868 wrote to memory of 2808	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	36
PID 2868 wrote to memory of 2808	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	36
PID 2868 wrote to memory of 2808	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	36
PID 2868 wrote to memory of 2652	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	38
PID 2868 wrote to memory of 2652	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	38
PID 2868 wrote to memory of 2652	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	38
PID 2868 wrote to memory of 2652	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	38
PID 2868 wrote to memory of 572	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	41
PID 2868 wrote to memory of 572	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	41
PID 2868 wrote to memory of 572	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	41
PID 2868 wrote to memory of 572	2868	JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe	41
PID 2340 wrote to memory of 1820	2340	vcobkxys.exe	43
PID 2340 wrote to memory of 1820	2340	vcobkxys.exe	43
PID 2340 wrote to memory of 1820	2340	vcobkxys.exe	43
PID 2340 wrote to memory of 1820	2340	vcobkxys.exe	43
PID 2340 wrote to memory of 1820	2340	vcobkxys.exe	43
PID 2340 wrote to memory of 1820	2340	vcobkxys.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pvrlpend\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2852
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vcobkxys.exe" C:\Windows\SysWOW64\pvrlpend\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2644
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pvrlpend binPath= "C:\Windows\SysWOW64\pvrlpend\vcobkxys.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2068
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pvrlpend "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pvrlpend
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2652
- 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:572

C:\Windows\SysWOW64\pvrlpend\vcobkxys.exe
C:\Windows\SysWOW64\pvrlpend\vcobkxys.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c60a9d97501c8fccb7ce37b52654839b.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
10.6MB

MD5
f8d4f6b00dd7ef6ea86f5b4ce4dbce57

SHA1
1744fdf962b69eb2f7d89472e99ce84976304a9d

SHA256
b63a2cd349a7756b67ff3ee326374b03c0f0c2062858d1e510edf109f265f9e6

SHA512
8a14072055452255561e0270c6148e4e64809dd3ea9d9dd23504e006ca2ac47f2d735caf946d19f5ba5c1a0a5450747236ea97e480564c6346722513f03a6238

Download Submit
memory/1820-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1820-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1820-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1820-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1820-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2340-17-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2868-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2868-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2868-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2868-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2868-8-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2868-1-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads