tofsee | ef7cc62b3ccd12433900d89c5f6720c99f30fb54b8f51483c82200baaad1b9ff

General

Target

2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe
Size

11.6MB
MD5

6023e191fca76dfd81406faa8baf5f42
SHA1

5567505ca93a62a91f226d391306bf82a31de7f4
SHA256

ef7cc62b3ccd12433900d89c5f6720c99f30fb54b8f51483c82200baaad1b9ff
SHA512

009b51eab687e9a1d5914914a044290e855a5a7666922cb6012edd370ddf65034792db242155b9833345acf0d982fc9819970b84c69995506cf23adb52e59ea9
SSDEEP

196608:iyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX3:HXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH

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
3460	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\diunzllq\ImagePath = "C:\\Windows\\SysWOW64\\diunzllq\\ywfgplaw.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	2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe

Deletes itself 1 IoCs

pid	Process
3476	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1992	ywfgplaw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1992 set thread context of 3476	1992	ywfgplaw.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
876	sc.exe
5016	sc.exe
3520	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

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ywfgplaw.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	2025-01-29_6023e191fca76dfd81406faa8baf5f42_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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3712 wrote to memory of 2180	3712	2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe	85
PID 3712 wrote to memory of 2180	3712	2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe	85
PID 3712 wrote to memory of 2180	3712	2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe	85
PID 3712 wrote to memory of 3760	3712	2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe	87
PID 3712 wrote to memory of 3760	3712	2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe	87
PID 3712 wrote to memory of 3760	3712	2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe	87
PID 3712 wrote to memory of 3520	3712	2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe	89
PID 3712 wrote to memory of 3520	3712	2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe	89
PID 3712 wrote to memory of 3520	3712	2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe	89
PID 3712 wrote to memory of 876	3712	2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe	91
PID 3712 wrote to memory of 876	3712	2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe	91
PID 3712 wrote to memory of 876	3712	2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe	91
PID 3712 wrote to memory of 5016	3712	2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe	93
PID 3712 wrote to memory of 5016	3712	2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe	93
PID 3712 wrote to memory of 5016	3712	2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe	93
PID 3712 wrote to memory of 3460	3712	2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe	96
PID 3712 wrote to memory of 3460	3712	2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe	96
PID 3712 wrote to memory of 3460	3712	2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe	96
PID 1992 wrote to memory of 3476	1992	ywfgplaw.exe	97
PID 1992 wrote to memory of 3476	1992	ywfgplaw.exe	97
PID 1992 wrote to memory of 3476	1992	ywfgplaw.exe	97
PID 1992 wrote to memory of 3476	1992	ywfgplaw.exe	97
PID 1992 wrote to memory of 3476	1992	ywfgplaw.exe	97

C:\Users\Admin\AppData\Local\Temp\2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\diunzllq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ywfgplaw.exe" C:\Windows\SysWOW64\diunzllq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3760
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create diunzllq binPath= "C:\Windows\SysWOW64\diunzllq\ywfgplaw.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3520
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description diunzllq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:876
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start diunzllq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5016
- 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:3460

C:\Windows\SysWOW64\diunzllq\ywfgplaw.exe
C:\Windows\SysWOW64\diunzllq\ywfgplaw.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-29_6023e191fca76dfd81406faa8baf5f42_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3476

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\ywfgplaw.exe

Filesize
10.5MB

MD5
9b4fd60b464e3c2e2e40720ebfc5ca8d

SHA1
457ec356a729b0295f423a75744939e4cd778c1b

SHA256
d35ce27abce7afaddcea2d187c4788c3f4d8ea625c7dc9ae924d0685fa2d5c48

SHA512
32b0b28b5ab073c454cb036e0295c71b63b2c6ae99c849ca89b35ae53fc9e009c5f2f4d11ded46dbf3dd08bc7063398ae42d3987f46e607dfab96c1c1a561412

Download Submit
memory/1992-18-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1992-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1992-9-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1992-10-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3476-19-0x0000000000770000-0x0000000000785000-memory.dmp

Filesize
84KB

Download
memory/3476-11-0x0000000000770000-0x0000000000785000-memory.dmp

Filesize
84KB

Download
memory/3476-20-0x0000000000770000-0x0000000000785000-memory.dmp

Filesize
84KB

Download
memory/3476-21-0x0000000000770000-0x0000000000785000-memory.dmp

Filesize
84KB

Download
memory/3476-22-0x0000000000770000-0x0000000000785000-memory.dmp

Filesize
84KB

Download
memory/3712-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3712-14-0x0000000000570000-0x0000000000583000-memory.dmp

Filesize
76KB

Download
memory/3712-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3712-2-0x0000000000570000-0x0000000000583000-memory.dmp

Filesize
76KB

Download
memory/3712-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3712-1-0x00000000007A0000-0x00000000008A0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads