tofsee | e2587b5e9b7e1a5cee8ca6e879c3bdffcc94af309376e20069ed58fb7f73188e

General

Target

2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe
Size

11.3MB
MD5

6232e72d87c35db87261dca8187d3428
SHA1

2284e0079e5607e9fcfccaaf9d13689ac6a88647
SHA256

e2587b5e9b7e1a5cee8ca6e879c3bdffcc94af309376e20069ed58fb7f73188e
SHA512

9ed0033b8ba19b208682281825137f3c32c8d48dc551bcfee014802df85af9e80447841d9537af73bd66646c42f576791de973101b3c90520163ce620a736afd
SSDEEP

24576:QEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZP:Nfot

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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
436	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\bxnpqgcy\ImagePath = "C:\\Windows\\SysWOW64\\bxnpqgcy\\ojnfvgig.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe

Deletes itself 1 IoCs

pid	Process
3548	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
180	ojnfvgig.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 180 set thread context of 3548	180	ojnfvgig.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
1844	sc.exe
3172	sc.exe
1012	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3204	2172	WerFault.exe	81
1516	180	WerFault.exe	92

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	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	ojnfvgig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 3184	2172	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	82
PID 2172 wrote to memory of 3184	2172	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	82
PID 2172 wrote to memory of 3184	2172	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	82
PID 2172 wrote to memory of 4004	2172	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	84
PID 2172 wrote to memory of 4004	2172	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	84
PID 2172 wrote to memory of 4004	2172	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	84
PID 2172 wrote to memory of 3172	2172	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	86
PID 2172 wrote to memory of 3172	2172	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	86
PID 2172 wrote to memory of 3172	2172	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	86
PID 2172 wrote to memory of 1012	2172	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	88
PID 2172 wrote to memory of 1012	2172	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	88
PID 2172 wrote to memory of 1012	2172	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	88
PID 2172 wrote to memory of 1844	2172	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	90
PID 2172 wrote to memory of 1844	2172	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	90
PID 2172 wrote to memory of 1844	2172	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	90
PID 2172 wrote to memory of 436	2172	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	93
PID 2172 wrote to memory of 436	2172	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	93
PID 2172 wrote to memory of 436	2172	2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe	93
PID 180 wrote to memory of 3548	180	ojnfvgig.exe	98
PID 180 wrote to memory of 3548	180	ojnfvgig.exe	98
PID 180 wrote to memory of 3548	180	ojnfvgig.exe	98
PID 180 wrote to memory of 3548	180	ojnfvgig.exe	98
PID 180 wrote to memory of 3548	180	ojnfvgig.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bxnpqgcy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3184
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ojnfvgig.exe" C:\Windows\SysWOW64\bxnpqgcy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4004
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bxnpqgcy binPath= "C:\Windows\SysWOW64\bxnpqgcy\ojnfvgig.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3172
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bxnpqgcy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bxnpqgcy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1844
- 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:436
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2172 -s 1200
  2⤵
  - Program crash
  PID:3204

C:\Windows\SysWOW64\bxnpqgcy\ojnfvgig.exe
C:\Windows\SysWOW64\bxnpqgcy\ojnfvgig.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-24_6232e72d87c35db87261dca8187d3428_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:180
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3548
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 180 -s 516
  2⤵
  - Program crash
  PID:1516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2172 -ip 2172
1⤵
PID:2728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 180 -ip 180
1⤵
PID:2668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\ojnfvgig.exe

Filesize
11.6MB

MD5
f042f43e6fbf7b7fdc1d39b013541d43

SHA1
d73b396426e9a66f9a8528eee49462aedb97c8cf

SHA256
ddff17d8b9a979139a8fc51673bd6cdf13d41a6212412410a361170525144de3

SHA512
19c92a2015b1e63fe90840106453a12219e921a168c3a2d9338a15c9a24bc90eaeaef056c5274427ca788aa2475f837d4dde34f1fada02890e6d19b9b2038561

Download Submit
memory/180-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/180-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/180-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/180-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2172-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2172-1-0x0000000000690000-0x0000000000790000-memory.dmp

Filesize
1024KB

Download
memory/2172-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2172-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2172-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/2172-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/3548-14-0x0000000000450000-0x0000000000465000-memory.dmp

Filesize
84KB

Download
memory/3548-16-0x0000000000450000-0x0000000000465000-memory.dmp

Filesize
84KB

Download
memory/3548-17-0x0000000000450000-0x0000000000465000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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