tofsee | 96946f52a7f820fe8904eb72f1e41b434e0139de8b2af99e51cb6b0b6dd89ac8

Analysis

max time kernel
148s
max time network
155s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-01-2025 18:52

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General

Target

JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe
Size

11.1MB
MD5

eb79e351abac2662239b0b6c141d6ea1
SHA1

cf3b72eea6b5b9478da32a5a3b4c9efb2b460b66
SHA256

96946f52a7f820fe8904eb72f1e41b434e0139de8b2af99e51cb6b0b6dd89ac8
SHA512

6a76d601c61f14f4afa8105b0c3ea064379584d2d9331a6c0863adc13641aeccd111af21881f8aff3b70d3566793df6121a44a90288b16a231c9fea9af83d27a
SSDEEP

49152:89GbGbGbGbGbGbGbGbGbGbGbGbGbGbGbGbGbGbGbGbGbGbGbGbGbGbGbGbGbGbGn:

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

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\vhvxcxlk = "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
2620	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\vhvxcxlk\ImagePath = "C:\\Windows\\SysWOW64\\vhvxcxlk\\dwrdhwh.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1392	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2568	dwrdhwh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2568 set thread context of 1392	2568	dwrdhwh.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2684	sc.exe
2720	sc.exe
2740	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	cmd.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	dwrdhwh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2780 wrote to memory of 2768	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	30
PID 2780 wrote to memory of 2768	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	30
PID 2780 wrote to memory of 2768	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	30
PID 2780 wrote to memory of 2768	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	30
PID 2780 wrote to memory of 2932	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	32
PID 2780 wrote to memory of 2932	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	32
PID 2780 wrote to memory of 2932	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	32
PID 2780 wrote to memory of 2932	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	32
PID 2780 wrote to memory of 2740	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	34
PID 2780 wrote to memory of 2740	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	34
PID 2780 wrote to memory of 2740	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	34
PID 2780 wrote to memory of 2740	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	34
PID 2780 wrote to memory of 2684	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	36
PID 2780 wrote to memory of 2684	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	36
PID 2780 wrote to memory of 2684	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	36
PID 2780 wrote to memory of 2684	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	36
PID 2780 wrote to memory of 2720	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	38
PID 2780 wrote to memory of 2720	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	38
PID 2780 wrote to memory of 2720	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	38
PID 2780 wrote to memory of 2720	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	38
PID 2780 wrote to memory of 2620	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	41
PID 2780 wrote to memory of 2620	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	41
PID 2780 wrote to memory of 2620	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	41
PID 2780 wrote to memory of 2620	2780	JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe	41
PID 2568 wrote to memory of 1392	2568	dwrdhwh.exe	43
PID 2568 wrote to memory of 1392	2568	dwrdhwh.exe	43
PID 2568 wrote to memory of 1392	2568	dwrdhwh.exe	43
PID 2568 wrote to memory of 1392	2568	dwrdhwh.exe	43
PID 2568 wrote to memory of 1392	2568	dwrdhwh.exe	43
PID 2568 wrote to memory of 1392	2568	dwrdhwh.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2780
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vhvxcxlk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dwrdhwh.exe" C:\Windows\SysWOW64\vhvxcxlk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2932
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vhvxcxlk binPath= "C:\Windows\SysWOW64\vhvxcxlk\dwrdhwh.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2740
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vhvxcxlk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2684
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vhvxcxlk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2720
- 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:2620

C:\Windows\SysWOW64\vhvxcxlk\dwrdhwh.exe
C:\Windows\SysWOW64\vhvxcxlk\dwrdhwh.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_eb79e351abac2662239b0b6c141d6ea1.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2568
- 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:1392

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\dwrdhwh.exe

Filesize
14.1MB

MD5
3e39392ccd207b86e8f87ac6a6e13971

SHA1
1d4b37407c4a6cb206e7e911944ccd8b52e259dc

SHA256
efff5c24a0ee2b356b768b936e8a9f4bb327e7d7c5d5ac29290b31ad2621ab93

SHA512
d1711a34a94e5eef428a9662912fa020a02779a758ade582f6f3d6e265e981f685347e3b820256d70a847c6bccdaf799fc1b513840a10631e6d8653673ca7f77

Download Submit
memory/1392-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1392-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1392-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1392-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1392-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2568-17-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/2780-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2780-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2780-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2780-8-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/2780-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2780-1-0x0000000001780000-0x0000000001880000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads