tofsee | b39595c06e777b510c85f16d8353c5b5f5d2bcd16e2f17c3dfcd80718e51a2fb

Analysis

max time kernel
149s
max time network
126s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
01/02/2025, 11:47

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General

Target

2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe
Size

14.2MB
MD5

30b2dc58a6a04741bccfb42440710e97
SHA1

8d07aecac08c1bdcdc979f325167331c23cd46ec
SHA256

b39595c06e777b510c85f16d8353c5b5f5d2bcd16e2f17c3dfcd80718e51a2fb
SHA512

58c9f89ac16cedc7ba0c4a6b016f3b7e954ca750cb1c462136b42374308ad8a6bbabdd6877cdc8666f1960877c947914788a864bc09a6384077792d06ddf5374
SSDEEP

6144:ALQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQI:VTYe+D2jFu+iZoUFhAz

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.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

defense_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\wcndilvo = "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

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2640	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\wcndilvo\ImagePath = "C:\\Windows\\SysWOW64\\wcndilvo\\pnwxgcrn.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2888	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2624	pnwxgcrn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2624 set thread context of 2888	2624	pnwxgcrn.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2788	sc.exe
2812	sc.exe
2960	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	pnwxgcrn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2760 wrote to memory of 3020	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	30
PID 2760 wrote to memory of 3020	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	30
PID 2760 wrote to memory of 3020	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	30
PID 2760 wrote to memory of 3020	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	30
PID 2760 wrote to memory of 2752	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	32
PID 2760 wrote to memory of 2752	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	32
PID 2760 wrote to memory of 2752	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	32
PID 2760 wrote to memory of 2752	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	32
PID 2760 wrote to memory of 2812	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	34
PID 2760 wrote to memory of 2812	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	34
PID 2760 wrote to memory of 2812	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	34
PID 2760 wrote to memory of 2812	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	34
PID 2760 wrote to memory of 2960	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	36
PID 2760 wrote to memory of 2960	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	36
PID 2760 wrote to memory of 2960	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	36
PID 2760 wrote to memory of 2960	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	36
PID 2760 wrote to memory of 2788	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	38
PID 2760 wrote to memory of 2788	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	38
PID 2760 wrote to memory of 2788	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	38
PID 2760 wrote to memory of 2788	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	38
PID 2760 wrote to memory of 2640	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	41
PID 2760 wrote to memory of 2640	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	41
PID 2760 wrote to memory of 2640	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	41
PID 2760 wrote to memory of 2640	2760	2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe	41
PID 2624 wrote to memory of 2888	2624	pnwxgcrn.exe	43
PID 2624 wrote to memory of 2888	2624	pnwxgcrn.exe	43
PID 2624 wrote to memory of 2888	2624	pnwxgcrn.exe	43
PID 2624 wrote to memory of 2888	2624	pnwxgcrn.exe	43
PID 2624 wrote to memory of 2888	2624	pnwxgcrn.exe	43
PID 2624 wrote to memory of 2888	2624	pnwxgcrn.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2760
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wcndilvo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3020
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pnwxgcrn.exe" C:\Windows\SysWOW64\wcndilvo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wcndilvo binPath= "C:\Windows\SysWOW64\wcndilvo\pnwxgcrn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wcndilvo "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 wcndilvo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2788
- 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:2640

C:\Windows\SysWOW64\wcndilvo\pnwxgcrn.exe
C:\Windows\SysWOW64\wcndilvo\pnwxgcrn.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2624
- 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:2888

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\pnwxgcrn.exe

Filesize
14.6MB

MD5
8d915029146b1682ab84f47c36aae3ef

SHA1
e75a49dcad7cd77787a1adc31cab5a893d6bbe8c

SHA256
578a671870a77471500c4a43f25855975c1105e8503868f229bf524f4cf23777

SHA512
4f92b6edd7d4b87cf8ea4753be1b36fb8027432b4d05c3d210068e5f7dcd37f6b3242ab4149037778e53cfa1c9af0198f3a4e8eda45927830c7e7fe3e5a0f34f

Download Submit
memory/2624-15-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2760-7-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2760-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2760-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2760-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2760-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2760-1-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download
memory/2888-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2888-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2888-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2888-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2888-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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