tofsee | 8090e1afcab6554937edd0bc8c587ed5449e5954f3287e089b948eef719e3f49

General

Target

2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe
Size

11.9MB
MD5

d2aa8a89bed9a2fce489567b59d15112
SHA1

51040b5011828b7a3f995af3e7bff3aa954be3fa
SHA256

8090e1afcab6554937edd0bc8c587ed5449e5954f3287e089b948eef719e3f49
SHA512

f9a4e9f60c3afbca32e4dc4ea7f34b02aea23d74e8eb2bb9e47947eb45c1f91e5c3caf3b83eaadc82d7126637c5b580149490e65cc67839a6d2d79ff677e5c08
SSDEEP

49152:OqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPS:OqtYc3z

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
2864	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\gwxsodmf\ImagePath = "C:\\Windows\\SysWOW64\\gwxsodmf\\jlgmfsc.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-1-5-21-1121399784-3202166597-3503557106-1000\Control Panel\International\Geo\Nation	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe

Deletes itself 1 IoCs

pid	Process
2844	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1236	jlgmfsc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1236 set thread context of 2844	1236	jlgmfsc.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
2168	sc.exe
1924	sc.exe
1204	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
512	4880	WerFault.exe	82
4920	1236	WerFault.exe	96

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	svchost.exe
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	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	jlgmfsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4880 wrote to memory of 2820	4880	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	86
PID 4880 wrote to memory of 2820	4880	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	86
PID 4880 wrote to memory of 2820	4880	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	86
PID 4880 wrote to memory of 3092	4880	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	88
PID 4880 wrote to memory of 3092	4880	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	88
PID 4880 wrote to memory of 3092	4880	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	88
PID 4880 wrote to memory of 2168	4880	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	90
PID 4880 wrote to memory of 2168	4880	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	90
PID 4880 wrote to memory of 2168	4880	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	90
PID 4880 wrote to memory of 1924	4880	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	92
PID 4880 wrote to memory of 1924	4880	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	92
PID 4880 wrote to memory of 1924	4880	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	92
PID 4880 wrote to memory of 1204	4880	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	94
PID 4880 wrote to memory of 1204	4880	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	94
PID 4880 wrote to memory of 1204	4880	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	94
PID 1236 wrote to memory of 2844	1236	jlgmfsc.exe	97
PID 1236 wrote to memory of 2844	1236	jlgmfsc.exe	97
PID 1236 wrote to memory of 2844	1236	jlgmfsc.exe	97
PID 1236 wrote to memory of 2844	1236	jlgmfsc.exe	97
PID 1236 wrote to memory of 2844	1236	jlgmfsc.exe	97
PID 4880 wrote to memory of 2864	4880	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	98
PID 4880 wrote to memory of 2864	4880	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	98
PID 4880 wrote to memory of 2864	4880	2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4880
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gwxsodmf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jlgmfsc.exe" C:\Windows\SysWOW64\gwxsodmf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3092
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gwxsodmf binPath= "C:\Windows\SysWOW64\gwxsodmf\jlgmfsc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2168
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gwxsodmf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1924
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gwxsodmf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1204
- 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:2864
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4880 -s 1168
  2⤵
  - Program crash
  PID:512

C:\Windows\SysWOW64\gwxsodmf\jlgmfsc.exe
C:\Windows\SysWOW64\gwxsodmf\jlgmfsc.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_d2aa8a89bed9a2fce489567b59d15112_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1236
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2844
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1236 -s 520
  2⤵
  - Program crash
  PID:4920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1236 -ip 1236
1⤵
PID:1080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4880 -ip 4880
1⤵
PID:2996

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\jlgmfsc.exe

Filesize
14.2MB

MD5
a41cd4b567d670f140c07e5c7a638785

SHA1
8bbf14e2734ca021971a9e57e8acf30f0344a713

SHA256
24b30fb09381ff684938dafc8235cc8561849a316599a7f512bb000571bb0079

SHA512
2b4f1c782cd646e8445015a082640fe34002bbc66cd6c3e72e7426da2f061cad73f42ce9104eabcb367cffa88087fc9d76a6d5cc54a5504d70fd0a0614c0e85d

Download Submit
memory/1236-11-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2844-8-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/2844-14-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/2844-15-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/4880-1-0x0000000002EB0000-0x0000000002FB0000-memory.dmp

Filesize
1024KB

Download
memory/4880-2-0x0000000003200000-0x0000000003213000-memory.dmp

Filesize
76KB

Download
memory/4880-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4880-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4880-12-0x0000000003200000-0x0000000003213000-memory.dmp

Filesize
76KB

Download
memory/4880-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads