tofsee | 7361cc6e57468a8f812fb6174a3ca3081d136942c82a2cf6250e8eabdb9b0aee

General

Target

2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe
Size

12.1MB
MD5

bf0482b484090d1a7804ebb245a98bb1
SHA1

9bde15de16971320eb45314538f3916547f85e4c
SHA256

7361cc6e57468a8f812fb6174a3ca3081d136942c82a2cf6250e8eabdb9b0aee
SHA512

cd6d9cf4d3a89a93f1274b2e85ce54f396c6aa3b573c93b8b30cbac6e229915b39c714d14befbf1e91a93abbac9aeec8cf589972665e1d32c60cea1da9c5b310
SSDEEP

3072:/LBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:2OMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
4112	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\usktemoi\ImagePath = "C:\\Windows\\SysWOW64\\usktemoi\\nqwqfqbh.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe

Deletes itself 1 IoCs

pid	Process
3964	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1920	nqwqfqbh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1920 set thread context of 3964	1920	nqwqfqbh.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
472	sc.exe
924	sc.exe
624	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
3312	3012	WerFault.exe	82
820	1920	WerFault.exe	94

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nqwqfqbh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-27_bf0482b484090d1a7804ebb245a98bb1_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 3012 wrote to memory of 4540	3012	2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe	84
PID 3012 wrote to memory of 4540	3012	2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe	84
PID 3012 wrote to memory of 4540	3012	2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe	84
PID 3012 wrote to memory of 4660	3012	2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe	86
PID 3012 wrote to memory of 4660	3012	2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe	86
PID 3012 wrote to memory of 4660	3012	2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe	86
PID 3012 wrote to memory of 472	3012	2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe	88
PID 3012 wrote to memory of 472	3012	2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe	88
PID 3012 wrote to memory of 472	3012	2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe	88
PID 3012 wrote to memory of 924	3012	2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe	90
PID 3012 wrote to memory of 924	3012	2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe	90
PID 3012 wrote to memory of 924	3012	2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe	90
PID 3012 wrote to memory of 624	3012	2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe	92
PID 3012 wrote to memory of 624	3012	2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe	92
PID 3012 wrote to memory of 624	3012	2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe	92
PID 3012 wrote to memory of 4112	3012	2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe	95
PID 3012 wrote to memory of 4112	3012	2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe	95
PID 3012 wrote to memory of 4112	3012	2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe	95
PID 1920 wrote to memory of 3964	1920	nqwqfqbh.exe	101
PID 1920 wrote to memory of 3964	1920	nqwqfqbh.exe	101
PID 1920 wrote to memory of 3964	1920	nqwqfqbh.exe	101
PID 1920 wrote to memory of 3964	1920	nqwqfqbh.exe	101
PID 1920 wrote to memory of 3964	1920	nqwqfqbh.exe	101

C:\Users\Admin\AppData\Local\Temp\2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\usktemoi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4540
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nqwqfqbh.exe" C:\Windows\SysWOW64\usktemoi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4660
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create usktemoi binPath= "C:\Windows\SysWOW64\usktemoi\nqwqfqbh.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:472
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description usktemoi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:924
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start usktemoi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:624
- 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:4112
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3012 -s 1204
  2⤵
  - Program crash
  PID:3312

C:\Windows\SysWOW64\usktemoi\nqwqfqbh.exe
C:\Windows\SysWOW64\usktemoi\nqwqfqbh.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-27_bf0482b484090d1a7804ebb245a98bb1_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1920
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3964
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1920 -s 508
  2⤵
  - Program crash
  PID:820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3012 -ip 3012
1⤵
PID:4396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1920 -ip 1920
1⤵
PID:2068

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\nqwqfqbh.exe

Filesize
10.3MB

MD5
6430f657f348909da51eec4054e509c9

SHA1
484579702bc414420f1f12749733a0dd7075efb1

SHA256
88258ffcb140f07573564924db08602730922cc7cba1d0734d493654dd17d5b7

SHA512
21408a8dc2fd0899cacf346058be1361a1283a122735c024904a5b61825a2f09537e107f694d14f99dcb0fc2dd8c36c8a397e26a67c4322659842581ee989c16

Download Submit
memory/1920-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1920-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1920-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1920-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3012-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3012-2-0x00000000008A0000-0x00000000008B3000-memory.dmp

Filesize
76KB

Download
memory/3012-8-0x00000000008A0000-0x00000000008B3000-memory.dmp

Filesize
76KB

Download
memory/3012-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3012-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3012-1-0x0000000000680000-0x0000000000780000-memory.dmp

Filesize
1024KB

Download
memory/3964-14-0x0000000000730000-0x0000000000745000-memory.dmp

Filesize
84KB

Download
memory/3964-16-0x0000000000730000-0x0000000000745000-memory.dmp

Filesize
84KB

Download
memory/3964-17-0x0000000000730000-0x0000000000745000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads