tofsee | d0a01bf458e4fc5d53eb73fc08806f229eeedd9d95f599434c6219f89854f499

General

Target

2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe
Size

14.8MB
MD5

87c7f97e80e543942db4b3abc03e96db
SHA1

bd4f50648f2a28536638609ba513986c05379e50
SHA256

d0a01bf458e4fc5d53eb73fc08806f229eeedd9d95f599434c6219f89854f499
SHA512

0f4a003bc3e2917151e203ce58c8ed2975e9df0a934981aa17815e9d9e02edaf875363f920a8d04c3e1cee9d44cb9a33fc01414c5f1c8613c6a414edb6e2e751
SSDEEP

24576:4EfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZP:1fot

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
44	1960	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
2380	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\wycjawll\ImagePath = "C:\\Windows\\SysWOW64\\wycjawll\\usbclhws.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-1-5-21-3311063739-2594902809-44604183-1000\Control Panel\International\Geo\Nation	2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe

Deletes itself 1 IoCs

pid	Process
1716	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2596	usbclhws.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2596 set thread context of 1716	2596	usbclhws.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
4676	sc.exe
3528	sc.exe
2096	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
4012	116	WerFault.exe	85
3428	2596	WerFault.exe	99

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	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-07_87c7f97e80e543942db4b3abc03e96db_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	usbclhws.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
3040	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 116 wrote to memory of 2800	116	2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe	89
PID 116 wrote to memory of 2800	116	2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe	89
PID 116 wrote to memory of 2800	116	2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe	89
PID 116 wrote to memory of 1408	116	2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe	91
PID 116 wrote to memory of 1408	116	2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe	91
PID 116 wrote to memory of 1408	116	2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe	91
PID 116 wrote to memory of 3528	116	2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe	93
PID 116 wrote to memory of 3528	116	2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe	93
PID 116 wrote to memory of 3528	116	2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe	93
PID 116 wrote to memory of 2096	116	2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe	95
PID 116 wrote to memory of 2096	116	2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe	95
PID 116 wrote to memory of 2096	116	2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe	95
PID 116 wrote to memory of 4676	116	2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe	97
PID 116 wrote to memory of 4676	116	2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe	97
PID 116 wrote to memory of 4676	116	2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe	97
PID 116 wrote to memory of 2380	116	2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe	100
PID 116 wrote to memory of 2380	116	2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe	100
PID 116 wrote to memory of 2380	116	2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe	100
PID 2596 wrote to memory of 1716	2596	usbclhws.exe	105
PID 2596 wrote to memory of 1716	2596	usbclhws.exe	105
PID 2596 wrote to memory of 1716	2596	usbclhws.exe	105
PID 2596 wrote to memory of 1716	2596	usbclhws.exe	105
PID 2596 wrote to memory of 1716	2596	usbclhws.exe	105

C:\Users\Admin\AppData\Local\Temp\2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:116
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wycjawll\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\usbclhws.exe" C:\Windows\SysWOW64\wycjawll\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1408
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wycjawll binPath= "C:\Windows\SysWOW64\wycjawll\usbclhws.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3528
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wycjawll "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2096
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wycjawll
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4676
- 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:2380
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 1040
  2⤵
  - Program crash
  PID:4012

C:\Windows\SysWOW64\wycjawll\usbclhws.exe
C:\Windows\SysWOW64\wycjawll\usbclhws.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_87c7f97e80e543942db4b3abc03e96db_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2596
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1716
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2596 -s 512
  2⤵
  - Program crash
  PID:3428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 116 -ip 116
1⤵
PID:2272

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 2596 -ip 2596
1⤵
PID:756

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5ODUiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODQ0NDQzNjAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MDY4MjIyODIzIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:3040

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

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Downloads

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

Filesize
11.7MB

MD5
237f5d1c3c1d86bc4f16f07b74177dca

SHA1
16fadc388d4ac6aa858bbe23500d2e9b38669808

SHA256
d76768a7dc9d6398d7f9e2640683b9e2f5b5c844f4853e203d364fd3556cd896

SHA512
b8c47357502675422dba8e35faa205e74879e2a962723ccfa97e85cce179413d776e58cc9482f819717c2d031351f322a3e57ed35b3b1c50f2d61d60b0cdab6a

Download Submit
memory/116-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/116-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/116-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/116-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/116-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/116-1-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/1716-14-0x00000000004D0000-0x00000000004E5000-memory.dmp

Filesize
84KB

Download
memory/1716-16-0x00000000004D0000-0x00000000004E5000-memory.dmp

Filesize
84KB

Download
memory/1716-17-0x00000000004D0000-0x00000000004E5000-memory.dmp

Filesize
84KB

Download
memory/2596-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2596-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2596-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2596-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads