tofsee | 8caac91256b008f7fd8f54b5fb20a9d425cd204a1772649e3c27f0b2ddf02b1d

General

Target

2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe
Size

14.1MB
MD5

7e4b71ad5aa7360eaf52f6853f0eb978
SHA1

26572ee9d0bce30bd72b83c6982572ea9291a71c
SHA256

8caac91256b008f7fd8f54b5fb20a9d425cd204a1772649e3c27f0b2ddf02b1d
SHA512

4ce1cc015d8dbc6bc4d3cb2c95756e5ebf45b06315bf39fa50405e7b25ed2172b417c8d059079b22eb3c0d5959e5e77aaab8df201486b2c7578caebe77e11684
SSDEEP

6144:wLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQ4:lTYe+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
3916	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\mpdchvgg\ImagePath = "C:\\Windows\\SysWOW64\\mpdchvgg\\llmxstrz.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe

Deletes itself 1 IoCs

pid	Process
2196	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5096	llmxstrz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5096 set thread context of 2196	5096	llmxstrz.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
1448	sc.exe
4012	sc.exe
1304	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
1424	4812	WerFault.exe	82
3252	5096	WerFault.exe	93

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	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_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	llmxstrz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4812 wrote to memory of 4912	4812	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	83
PID 4812 wrote to memory of 4912	4812	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	83
PID 4812 wrote to memory of 4912	4812	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	83
PID 4812 wrote to memory of 3292	4812	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	85
PID 4812 wrote to memory of 3292	4812	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	85
PID 4812 wrote to memory of 3292	4812	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	85
PID 4812 wrote to memory of 1448	4812	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	87
PID 4812 wrote to memory of 1448	4812	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	87
PID 4812 wrote to memory of 1448	4812	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	87
PID 4812 wrote to memory of 4012	4812	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	89
PID 4812 wrote to memory of 4012	4812	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	89
PID 4812 wrote to memory of 4012	4812	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	89
PID 4812 wrote to memory of 1304	4812	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	91
PID 4812 wrote to memory of 1304	4812	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	91
PID 4812 wrote to memory of 1304	4812	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	91
PID 4812 wrote to memory of 3916	4812	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	94
PID 4812 wrote to memory of 3916	4812	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	94
PID 4812 wrote to memory of 3916	4812	2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe	94
PID 5096 wrote to memory of 2196	5096	llmxstrz.exe	100
PID 5096 wrote to memory of 2196	5096	llmxstrz.exe	100
PID 5096 wrote to memory of 2196	5096	llmxstrz.exe	100
PID 5096 wrote to memory of 2196	5096	llmxstrz.exe	100
PID 5096 wrote to memory of 2196	5096	llmxstrz.exe	100

C:\Users\Admin\AppData\Local\Temp\2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4812
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mpdchvgg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4912
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\llmxstrz.exe" C:\Windows\SysWOW64\mpdchvgg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3292
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mpdchvgg binPath= "C:\Windows\SysWOW64\mpdchvgg\llmxstrz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1448
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mpdchvgg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mpdchvgg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1304
- 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:3916
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 652
  2⤵
  - Program crash
  PID:1424

C:\Windows\SysWOW64\mpdchvgg\llmxstrz.exe
C:\Windows\SysWOW64\mpdchvgg\llmxstrz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-19_7e4b71ad5aa7360eaf52f6853f0eb978_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5096
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2196
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5096 -s 528
  2⤵
  - Program crash
  PID:3252

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4812 -ip 4812
1⤵
PID:3180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 5096 -ip 5096
1⤵
PID:1628

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\llmxstrz.exe

Filesize
14.6MB

MD5
2959525b8de1ae222bb71948521ad2ab

SHA1
dc01498a17ef892120b6b73c53358678a0f913d7

SHA256
b4c21730003f7f5fae837e5a6689a39a8fe54927975fe69311b6e2413f8419da

SHA512
8fedd28c2347662b3b9bf5121010d59ec30af3ea2bc189cbdc89f3dc347445d41df93849946b486c2df16d4c2f21e4ba50b9d89e60b2bb0ce2a7f55844fbae1b

Download Submit
memory/2196-11-0x00000000010B0000-0x00000000010C5000-memory.dmp

Filesize
84KB

Download
memory/2196-18-0x00000000010B0000-0x00000000010C5000-memory.dmp

Filesize
84KB

Download
memory/2196-19-0x00000000010B0000-0x00000000010C5000-memory.dmp

Filesize
84KB

Download
memory/4812-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4812-2-0x0000000000520000-0x0000000000533000-memory.dmp

Filesize
76KB

Download
memory/4812-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/4812-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4812-14-0x0000000000520000-0x0000000000533000-memory.dmp

Filesize
76KB

Download
memory/4812-13-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/5096-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/5096-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/5096-10-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/5096-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads