tofsee | 3497d7067998701c2bea7bf39fc56497adfe1a4e8a230b5be44692d86c9d127f

Analysis

max time kernel
148s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
01-02-2025 02:04

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General

Target

2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe
Size

12.4MB
MD5

acf0ce65b64c5ab5852b6958b3db703a
SHA1

73c23316ae3703ca16ec98f37cd01dc580ab8294
SHA256

3497d7067998701c2bea7bf39fc56497adfe1a4e8a230b5be44692d86c9d127f
SHA512

fbbf0d5e1619b2f00e129faaebb0e24962804c82f81bd998d329259a148b8779dba8ea8904e942b9ae253441b9fa0d07831985914bf838456476c00163900c8a
SSDEEP

24576:ipomTTN9ttttttttttttttttttttttttttttttttttttttttttttttttttttttt1:Goo

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\dopwjgfw = "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
2736	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\dopwjgfw\ImagePath = "C:\\Windows\\SysWOW64\\dopwjgfw\\vvwhcdbj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2232	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2640	vvwhcdbj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2640 set thread context of 2232	2640	vvwhcdbj.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2788	sc.exe
2904	sc.exe
2932	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

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	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	vvwhcdbj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 324 wrote to memory of 2104	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	31
PID 324 wrote to memory of 2104	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	31
PID 324 wrote to memory of 2104	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	31
PID 324 wrote to memory of 2104	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	31
PID 324 wrote to memory of 2560	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	33
PID 324 wrote to memory of 2560	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	33
PID 324 wrote to memory of 2560	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	33
PID 324 wrote to memory of 2560	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	33
PID 324 wrote to memory of 2932	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	35
PID 324 wrote to memory of 2932	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	35
PID 324 wrote to memory of 2932	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	35
PID 324 wrote to memory of 2932	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	35
PID 324 wrote to memory of 2788	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	37
PID 324 wrote to memory of 2788	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	37
PID 324 wrote to memory of 2788	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	37
PID 324 wrote to memory of 2788	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	37
PID 324 wrote to memory of 2904	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	39
PID 324 wrote to memory of 2904	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	39
PID 324 wrote to memory of 2904	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	39
PID 324 wrote to memory of 2904	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	39
PID 324 wrote to memory of 2736	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	41
PID 324 wrote to memory of 2736	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	41
PID 324 wrote to memory of 2736	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	41
PID 324 wrote to memory of 2736	324	2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe	41
PID 2640 wrote to memory of 2232	2640	vvwhcdbj.exe	44
PID 2640 wrote to memory of 2232	2640	vvwhcdbj.exe	44
PID 2640 wrote to memory of 2232	2640	vvwhcdbj.exe	44
PID 2640 wrote to memory of 2232	2640	vvwhcdbj.exe	44
PID 2640 wrote to memory of 2232	2640	vvwhcdbj.exe	44
PID 2640 wrote to memory of 2232	2640	vvwhcdbj.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:324
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dopwjgfw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2104
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vvwhcdbj.exe" C:\Windows\SysWOW64\dopwjgfw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2560
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dopwjgfw binPath= "C:\Windows\SysWOW64\dopwjgfw\vvwhcdbj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2932
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dopwjgfw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2788
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dopwjgfw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2904
- 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:2736

C:\Windows\SysWOW64\dopwjgfw\vvwhcdbj.exe
C:\Windows\SysWOW64\dopwjgfw\vvwhcdbj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_acf0ce65b64c5ab5852b6958b3db703a_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2640
- 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:2232

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\vvwhcdbj.exe

Filesize
13.3MB

MD5
5d6a2d93277f02e0b103f684243e6f95

SHA1
6c55c06a7e4011d25a6fffe92d57ec0f5f1b40f8

SHA256
7e09e33e3c6501d61944d8e0c08a3cb0b85e1338aa55e408e371ba0f8622a827

SHA512
9a0f721140f29c9fe8fe5975352447806e236c102bdc3516646f9738b72f6f3fd865a816b38621a407b8f986940b6d90927f57a8a50f8dcf18c79f9b0b0ff315

Download Submit
memory/324-7-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/324-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/324-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/324-6-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/324-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/324-1-0x00000000004D0000-0x00000000005D0000-memory.dmp

Filesize
1024KB

Download
memory/2232-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2232-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2232-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2232-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2232-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2640-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads