tofsee | 0ac1a0b9c4fcd4c3b20d15b7d59f3a10356a23df796d4f12b2ef5dbd123dc200

General

Target

2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe
Size

11.2MB
MD5

cab9149269e443fdbc3f398e69a5ae04
SHA1

d59887c34754e965b8ec02ab985f9b7b1cc19ece
SHA256

0ac1a0b9c4fcd4c3b20d15b7d59f3a10356a23df796d4f12b2ef5dbd123dc200
SHA512

4d309050b9a2fdb836b21336a9cafe8cea5039b650ac747a2d6713627938ec7f9da2ce9c2f25822fdc343bf0eec49c2002063b412d469be0784bc931c011016c
SSDEEP

24576:rEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZb:4fotp

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
3600	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\dsbbgnqy\ImagePath = "C:\\Windows\\SysWOW64\\dsbbgnqy\\dfagzmw.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-1-5-21-2436272344-4274332273-444425594-1000\Control Panel\International\Geo\Nation	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe

Deletes itself 1 IoCs

pid	Process
2056	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2492	dfagzmw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2492 set thread context of 2056	2492	dfagzmw.exe	111

Launches sc.exe 3 IoCs

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

pid	Process
1200	sc.exe
2920	sc.exe
5076	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
2424	2012	WerFault.exe	83
4124	2492	WerFault.exe	104

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	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dfagzmw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 2676	2012	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	93
PID 2012 wrote to memory of 2676	2012	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	93
PID 2012 wrote to memory of 2676	2012	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	93
PID 2012 wrote to memory of 4956	2012	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	95
PID 2012 wrote to memory of 4956	2012	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	95
PID 2012 wrote to memory of 4956	2012	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	95
PID 2012 wrote to memory of 1200	2012	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	97
PID 2012 wrote to memory of 1200	2012	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	97
PID 2012 wrote to memory of 1200	2012	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	97
PID 2012 wrote to memory of 2920	2012	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	99
PID 2012 wrote to memory of 2920	2012	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	99
PID 2012 wrote to memory of 2920	2012	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	99
PID 2012 wrote to memory of 5076	2012	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	102
PID 2012 wrote to memory of 5076	2012	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	102
PID 2012 wrote to memory of 5076	2012	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	102
PID 2012 wrote to memory of 3600	2012	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	105
PID 2012 wrote to memory of 3600	2012	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	105
PID 2012 wrote to memory of 3600	2012	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	105
PID 2492 wrote to memory of 2056	2492	dfagzmw.exe	111
PID 2492 wrote to memory of 2056	2492	dfagzmw.exe	111
PID 2492 wrote to memory of 2056	2492	dfagzmw.exe	111
PID 2492 wrote to memory of 2056	2492	dfagzmw.exe	111
PID 2492 wrote to memory of 2056	2492	dfagzmw.exe	111

C:\Users\Admin\AppData\Local\Temp\2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dsbbgnqy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2676
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dfagzmw.exe" C:\Windows\SysWOW64\dsbbgnqy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4956
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dsbbgnqy binPath= "C:\Windows\SysWOW64\dsbbgnqy\dfagzmw.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1200
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dsbbgnqy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2920
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dsbbgnqy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5076
- 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:3600
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2012 -s 1040
  2⤵
  - Program crash
  PID:2424

C:\Windows\SysWOW64\dsbbgnqy\dfagzmw.exe
C:\Windows\SysWOW64\dsbbgnqy\dfagzmw.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2492
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2056
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2492 -s 516
  2⤵
  - Program crash
  PID:4124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2012 -ip 2012
1⤵
PID:4716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 2492 -ip 2492
1⤵
PID:5084

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
14.9MB

MD5
daf00dadbc47da92a919e932c613b5cc

SHA1
617a4e4af6047b3c176b2f0722fa5a19388ef80c

SHA256
51c096b732f62d47ffc10ca96b748e0ffa5b7f1f2d265f42a2f2110db42e5283

SHA512
0f3bdc27ff49d93d8a4c34f0b55b76ba1f0e2aa6dba4e1224f4990372a43b82a8fef43411eb6b425b8bc932fc7ae0e374096e92799103582132e9066b2b783d0

Download Submit
memory/2012-8-0x0000000000640000-0x0000000000653000-memory.dmp

Filesize
76KB

Download
memory/2012-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2012-2-0x0000000000640000-0x0000000000653000-memory.dmp

Filesize
76KB

Download
memory/2012-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2012-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2012-1-0x0000000000690000-0x0000000000790000-memory.dmp

Filesize
1024KB

Download
memory/2056-14-0x00000000008F0000-0x0000000000905000-memory.dmp

Filesize
84KB

Download
memory/2056-16-0x00000000008F0000-0x0000000000905000-memory.dmp

Filesize
84KB

Download
memory/2056-17-0x00000000008F0000-0x0000000000905000-memory.dmp

Filesize
84KB

Download
memory/2492-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2492-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2492-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2492-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads