tofsee | f0d57552bf5ffe22df4adbb50471050c49ac94bef439c389d9ca5ed8edcd5412

General

Target

2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe
Size

14.8MB
MD5

9ad052f1dfdc04131a88efc6b3a20f46
SHA1

c35a04c10306d8272f58fe5552eb52e543793cda
SHA256

f0d57552bf5ffe22df4adbb50471050c49ac94bef439c389d9ca5ed8edcd5412
SHA512

b6252b89b53719b51dd9b6de5fadb969eb7b8af6a79461a7ed2907ac571d9be62e640f80f47ea54820af1d03f68bf8a35b3d3e979b445462cb00e7ce0779ef44
SSDEEP

24576:+pomTTN9ttttttttttttttttttttttttttttttttttttttttttttttttttttttt0:SooS

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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
50	2312	Process not Found

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
764	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\vvkbuulk\ImagePath = "C:\\Windows\\SysWOW64\\vvkbuulk\\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-1-5-21-194335498-2604837297-537231065-1000\Control Panel\International\Geo\Nation	2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe

Deletes itself 1 IoCs

pid	Process
2896	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
968	jlgmfsc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 968 set thread context of 2896	968	jlgmfsc.exe	106

Launches sc.exe 3 IoCs

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

pid	Process
884	sc.exe
2176	sc.exe
4060	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
4128	1644	WerFault.exe	85
3096	968	WerFault.exe	100

System Location Discovery: System Language Discovery 1 TTPs 10 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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.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	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
648	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 3980	1644	2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe	90
PID 1644 wrote to memory of 3980	1644	2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe	90
PID 1644 wrote to memory of 3980	1644	2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe	90
PID 1644 wrote to memory of 1556	1644	2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe	92
PID 1644 wrote to memory of 1556	1644	2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe	92
PID 1644 wrote to memory of 1556	1644	2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe	92
PID 1644 wrote to memory of 884	1644	2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe	94
PID 1644 wrote to memory of 884	1644	2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe	94
PID 1644 wrote to memory of 884	1644	2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe	94
PID 1644 wrote to memory of 2176	1644	2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe	96
PID 1644 wrote to memory of 2176	1644	2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe	96
PID 1644 wrote to memory of 2176	1644	2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe	96
PID 1644 wrote to memory of 4060	1644	2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe	98
PID 1644 wrote to memory of 4060	1644	2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe	98
PID 1644 wrote to memory of 4060	1644	2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe	98
PID 1644 wrote to memory of 764	1644	2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe	101
PID 1644 wrote to memory of 764	1644	2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe	101
PID 1644 wrote to memory of 764	1644	2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe	101
PID 968 wrote to memory of 2896	968	jlgmfsc.exe	106
PID 968 wrote to memory of 2896	968	jlgmfsc.exe	106
PID 968 wrote to memory of 2896	968	jlgmfsc.exe	106
PID 968 wrote to memory of 2896	968	jlgmfsc.exe	106
PID 968 wrote to memory of 2896	968	jlgmfsc.exe	106

C:\Users\Admin\AppData\Local\Temp\2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1644
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vvkbuulk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3980
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jlgmfsc.exe" C:\Windows\SysWOW64\vvkbuulk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1556
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vvkbuulk binPath= "C:\Windows\SysWOW64\vvkbuulk\jlgmfsc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:884
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vvkbuulk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2176
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vvkbuulk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4060
- 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:764
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1644 -s 1036
  2⤵
  - Program crash
  PID:4128

C:\Windows\SysWOW64\vvkbuulk\jlgmfsc.exe
C:\Windows\SysWOW64\vvkbuulk\jlgmfsc.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-08_9ad052f1dfdc04131a88efc6b3a20f46_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:968
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2896
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 968 -s 560
  2⤵
  - Program crash
  PID:3096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1644 -ip 1644
1⤵
PID:400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 968 -ip 968
1⤵
PID:1028

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDcxNzgiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxOTY4MDM3MTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0OTM2MjEwMDY5Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:648

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
13.4MB

MD5
882fb2a020dbd270e4228e5de71dd845

SHA1
8fe3d84a7b3d8e8de09b2d6aa65db8423a4726da

SHA256
4155b9899af8adfcbd1cb4be6b1d2f176ed2d8275195122f6bd23006a2b9d396

SHA512
6f614cc5a706c62416d2c39ff22035e8711890c30c0716e8da45664c2f1b5e0185b6e7847e124994f0b96a10b5b328927af23acec0797d68ddbad1199a490da4

Download Submit
memory/968-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/968-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/968-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/968-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1644-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1644-2-0x00000000004B0000-0x00000000004C3000-memory.dmp

Filesize
76KB

Download
memory/1644-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1644-8-0x00000000004B0000-0x00000000004C3000-memory.dmp

Filesize
76KB

Download
memory/1644-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1644-1-0x00000000004D0000-0x00000000005D0000-memory.dmp

Filesize
1024KB

Download
memory/2896-14-0x0000000000AD0000-0x0000000000AE5000-memory.dmp

Filesize
84KB

Download
memory/2896-16-0x0000000000AD0000-0x0000000000AE5000-memory.dmp

Filesize
84KB

Download
memory/2896-17-0x0000000000AD0000-0x0000000000AE5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads