tofsee | 9b7c1f5476a36a29a7f81df68c5aeea0782382ac62ee693c193a00339b79fedd

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
29/01/2025, 17:33

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General

Target

2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe
Size

11.8MB
MD5

b4abb9b0e7781757b18e88bb6af706f8
SHA1

339f0b399c0a05a0c3c18c6745a0208bfffc0728
SHA256

9b7c1f5476a36a29a7f81df68c5aeea0782382ac62ee693c193a00339b79fedd
SHA512

b1eb49b3fbeda25640084a8bb01961b39fc5e883ad2b0006ee7345f37e725fdb4e4031c09cf1643fd79032dd2af6790eb40cea4ead49092d8128e1f40a6a367d
SSDEEP

196608:GyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX3:rXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH

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\mhbjdwvk = "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
2304	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\mhbjdwvk\ImagePath = "C:\\Windows\\SysWOW64\\mhbjdwvk\\lffwhqhj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1804	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2980	lffwhqhj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2980 set thread context of 1804	2980	lffwhqhj.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2932	sc.exe
2024	sc.exe
2324	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lffwhqhj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1628 wrote to memory of 3000	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	30
PID 1628 wrote to memory of 3000	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	30
PID 1628 wrote to memory of 3000	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	30
PID 1628 wrote to memory of 3000	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	30
PID 1628 wrote to memory of 2212	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	32
PID 1628 wrote to memory of 2212	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	32
PID 1628 wrote to memory of 2212	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	32
PID 1628 wrote to memory of 2212	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	32
PID 1628 wrote to memory of 2024	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	34
PID 1628 wrote to memory of 2024	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	34
PID 1628 wrote to memory of 2024	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	34
PID 1628 wrote to memory of 2024	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	34
PID 1628 wrote to memory of 2324	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	36
PID 1628 wrote to memory of 2324	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	36
PID 1628 wrote to memory of 2324	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	36
PID 1628 wrote to memory of 2324	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	36
PID 1628 wrote to memory of 2932	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	38
PID 1628 wrote to memory of 2932	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	38
PID 1628 wrote to memory of 2932	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	38
PID 1628 wrote to memory of 2932	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	38
PID 1628 wrote to memory of 2304	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	40
PID 1628 wrote to memory of 2304	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	40
PID 1628 wrote to memory of 2304	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	40
PID 1628 wrote to memory of 2304	1628	2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe	40
PID 2980 wrote to memory of 1804	2980	lffwhqhj.exe	43
PID 2980 wrote to memory of 1804	2980	lffwhqhj.exe	43
PID 2980 wrote to memory of 1804	2980	lffwhqhj.exe	43
PID 2980 wrote to memory of 1804	2980	lffwhqhj.exe	43
PID 2980 wrote to memory of 1804	2980	lffwhqhj.exe	43
PID 2980 wrote to memory of 1804	2980	lffwhqhj.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1628
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mhbjdwvk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3000
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lffwhqhj.exe" C:\Windows\SysWOW64\mhbjdwvk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2212
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mhbjdwvk binPath= "C:\Windows\SysWOW64\mhbjdwvk\lffwhqhj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2024
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mhbjdwvk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2324
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mhbjdwvk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2932
- 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:2304

C:\Windows\SysWOW64\mhbjdwvk\lffwhqhj.exe
C:\Windows\SysWOW64\mhbjdwvk\lffwhqhj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-29_b4abb9b0e7781757b18e88bb6af706f8_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2980
- 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:1804

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\lffwhqhj.exe

Filesize
13.7MB

MD5
176a51b669e8ade48c79c2c948907f29

SHA1
fb50340a46127dc5c60a7c04382a6022a76b64f5

SHA256
3c516bad94693ce01280e3cf84dcf4c0f151c9d949ba11e5fcf698be195dbe32

SHA512
67e0ac4e61a42adc6134e4afb0c39595c7d1466553614a8fa2a031b43180ea04055b5999a58e751569a26ee7cbdf67030e3061f9b2922b2ccfff53dad4dac472

Download Submit
memory/1628-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1628-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1628-1-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/1628-7-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1628-6-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1628-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1804-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1804-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1804-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1804-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1804-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2980-15-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads