tofsee | c1f32d2fa5838080b3f3dae0b79588eab387c8521feeb671ede6470a8c466cf7

General

Target

2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe
Size

14.0MB
MD5

ec9274ec3a47eab2f18150dda32530eb
SHA1

40b5e3794a4c69ea44a5d887121b713cb777125c
SHA256

c1f32d2fa5838080b3f3dae0b79588eab387c8521feeb671ede6470a8c466cf7
SHA512

1128360d6f5b1801df8083c9f56fa5b1d33f49dc57838537884e25e5f297b46b83ec6991bc0066f88b851cbad327a7e42f2477ec4798115637b7fa8d33231fa1
SSDEEP

6144:DLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQ4:4TYe+D2jFu+iZoUFhAz

Score

10^/10

tofsee discovery evasion 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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2340	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\pmqkfoxn\ImagePath = "C:\\Windows\\SysWOW64\\pmqkfoxn\\mhldtege.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe

Deletes itself 1 IoCs

pid	Process
4808	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1544	mhldtege.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1544 set thread context of 4808	1544	mhldtege.exe	95

Launches sc.exe 3 IoCs

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

pid	Process
972	sc.exe
5068	sc.exe
4916	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
2100	1544	WerFault.exe	92
8	2648	WerFault.exe	81

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	mhldtege.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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	2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.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 2648 wrote to memory of 3672	2648	2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe	82
PID 2648 wrote to memory of 3672	2648	2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe	82
PID 2648 wrote to memory of 3672	2648	2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe	82
PID 2648 wrote to memory of 2920	2648	2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe	84
PID 2648 wrote to memory of 2920	2648	2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe	84
PID 2648 wrote to memory of 2920	2648	2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe	84
PID 2648 wrote to memory of 972	2648	2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe	86
PID 2648 wrote to memory of 972	2648	2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe	86
PID 2648 wrote to memory of 972	2648	2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe	86
PID 2648 wrote to memory of 5068	2648	2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe	88
PID 2648 wrote to memory of 5068	2648	2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe	88
PID 2648 wrote to memory of 5068	2648	2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe	88
PID 2648 wrote to memory of 4916	2648	2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe	90
PID 2648 wrote to memory of 4916	2648	2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe	90
PID 2648 wrote to memory of 4916	2648	2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe	90
PID 2648 wrote to memory of 2340	2648	2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe	93
PID 2648 wrote to memory of 2340	2648	2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe	93
PID 2648 wrote to memory of 2340	2648	2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe	93
PID 1544 wrote to memory of 4808	1544	mhldtege.exe	95
PID 1544 wrote to memory of 4808	1544	mhldtege.exe	95
PID 1544 wrote to memory of 4808	1544	mhldtege.exe	95
PID 1544 wrote to memory of 4808	1544	mhldtege.exe	95
PID 1544 wrote to memory of 4808	1544	mhldtege.exe	95

C:\Users\Admin\AppData\Local\Temp\2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2648
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pmqkfoxn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3672
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mhldtege.exe" C:\Windows\SysWOW64\pmqkfoxn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2920
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pmqkfoxn binPath= "C:\Windows\SysWOW64\pmqkfoxn\mhldtege.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:972
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pmqkfoxn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5068
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pmqkfoxn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4916
- 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:2340
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2648 -s 1040
  2⤵
  - Program crash
  PID:8

C:\Windows\SysWOW64\pmqkfoxn\mhldtege.exe
C:\Windows\SysWOW64\pmqkfoxn\mhldtege.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-18_ec9274ec3a47eab2f18150dda32530eb_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1544
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4808
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1544 -s 560
  2⤵
  - Program crash
  PID:2100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2648 -ip 2648
1⤵
PID:2464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1544 -ip 1544
1⤵
PID:4912

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
13.4MB

MD5
614e7e064e066a38c49de9502e621fed

SHA1
8da3b0744dbca2b607c4d9df3ca6c667adbf3d33

SHA256
73b90ebe4caecb4340d0bc20da998691535a0fbbd091c8ed1c775a51e781baeb

SHA512
7cec36256b1fe209ca643e358fac87d96bdb232af5caf0fc2bd4ec244a479dd60a43eae753bf7e8a608c3f28e75ad701160295b147252fa4fb8ae35262cf7aef

Download Submit
memory/1544-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1544-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1544-15-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2648-16-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2648-1-0x0000000000690000-0x0000000000790000-memory.dmp

Filesize
1024KB

Download
memory/2648-2-0x0000000000630000-0x0000000000643000-memory.dmp

Filesize
76KB

Download
memory/2648-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2648-17-0x0000000000630000-0x0000000000643000-memory.dmp

Filesize
76KB

Download
memory/2648-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4808-10-0x0000000000EC0000-0x0000000000ED5000-memory.dmp

Filesize
84KB

Download
memory/4808-13-0x0000000000EC0000-0x0000000000ED5000-memory.dmp

Filesize
84KB

Download
memory/4808-19-0x0000000000EC0000-0x0000000000ED5000-memory.dmp

Filesize
84KB

Download
memory/4808-20-0x0000000000EC0000-0x0000000000ED5000-memory.dmp

Filesize
84KB

Download
memory/4808-21-0x0000000000EC0000-0x0000000000ED5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads