tofsee | b4dd7e958b282c99443e852936d95871d0cf9646870203656bf2d19a97eee09b

Analysis

max time kernel
144s
max time network
117s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
01-02-2025 21:43

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General

Target

2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe
Size

11.2MB
MD5

98cdee498f8d5733b1c652d8cf791cf1
SHA1

80bb484e8eb3bbcd1b45f46594094def3cb2b599
SHA256

b4dd7e958b282c99443e852936d95871d0cf9646870203656bf2d19a97eee09b
SHA512

2dce27d3172ed2bdc64fc35bfdb63074e90fd56c04a5ca99586262c38b40c35cd12603b26769fd3ecaf1dacf9f974da2823023fa57e4c7550c0a7b4715860355
SSDEEP

24576:kEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZV:Bfot

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\atchuqiy = "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
2916	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\atchuqiy\ImagePath = "C:\\Windows\\SysWOW64\\atchuqiy\\jlgmfsc.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2944	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2932	jlgmfsc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2932 set thread context of 2944	2932	jlgmfsc.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2280	sc.exe
2840	sc.exe
3024	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	jlgmfsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1756 wrote to memory of 3012	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	29
PID 1756 wrote to memory of 3012	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	29
PID 1756 wrote to memory of 3012	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	29
PID 1756 wrote to memory of 3012	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	29
PID 1756 wrote to memory of 604	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	31
PID 1756 wrote to memory of 604	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	31
PID 1756 wrote to memory of 604	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	31
PID 1756 wrote to memory of 604	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	31
PID 1756 wrote to memory of 2280	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	33
PID 1756 wrote to memory of 2280	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	33
PID 1756 wrote to memory of 2280	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	33
PID 1756 wrote to memory of 2280	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	33
PID 1756 wrote to memory of 2840	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	35
PID 1756 wrote to memory of 2840	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	35
PID 1756 wrote to memory of 2840	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	35
PID 1756 wrote to memory of 2840	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	35
PID 1756 wrote to memory of 3024	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	37
PID 1756 wrote to memory of 3024	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	37
PID 1756 wrote to memory of 3024	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	37
PID 1756 wrote to memory of 3024	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	37
PID 1756 wrote to memory of 2916	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	40
PID 1756 wrote to memory of 2916	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	40
PID 1756 wrote to memory of 2916	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	40
PID 1756 wrote to memory of 2916	1756	2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe	40
PID 2932 wrote to memory of 2944	2932	jlgmfsc.exe	42
PID 2932 wrote to memory of 2944	2932	jlgmfsc.exe	42
PID 2932 wrote to memory of 2944	2932	jlgmfsc.exe	42
PID 2932 wrote to memory of 2944	2932	jlgmfsc.exe	42
PID 2932 wrote to memory of 2944	2932	jlgmfsc.exe	42
PID 2932 wrote to memory of 2944	2932	jlgmfsc.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\atchuqiy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jlgmfsc.exe" C:\Windows\SysWOW64\atchuqiy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:604
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create atchuqiy binPath= "C:\Windows\SysWOW64\atchuqiy\jlgmfsc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2280
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description atchuqiy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2840
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start atchuqiy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3024
- 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:2916

C:\Windows\SysWOW64\atchuqiy\jlgmfsc.exe
C:\Windows\SysWOW64\atchuqiy\jlgmfsc.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_98cdee498f8d5733b1c652d8cf791cf1_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2932
- 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:2944

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\jlgmfsc.exe

Filesize
12.6MB

MD5
615c2492f84986c694f0461bab254e8a

SHA1
aed1a2fd03893bd58a2113a16e2991cb764db4ea

SHA256
9ca38ed1ee878df070d23628952798e849a0d318076c5d75f5c0448e8f409555

SHA512
7894f0cd280b27a5b6c142f7824aa301e2e6008bc8bd6dd1498d00719d30df782c74324494b6ae8319b17b844b3cd34c2037bf57e3a9ab635d194e1861c0d98f

Download Submit
memory/1756-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1756-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1756-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1756-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1756-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1756-1-0x0000000000890000-0x0000000000990000-memory.dmp

Filesize
1024KB

Download
memory/2932-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2944-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2944-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2944-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2944-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2944-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads