tofsee | c4c31118bfe9b71372e7a3b0d8af32cb2fbdc90d2907a1527b68757c6a625972

General

Target

2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe
Size

11.8MB
MD5

3c35df53659a5e0bf3470dae3ca6223f
SHA1

6299504ef85eb56575fabf71ac081f9bc77e6557
SHA256

c4c31118bfe9b71372e7a3b0d8af32cb2fbdc90d2907a1527b68757c6a625972
SHA512

ae63f20babc5aed1b83862b161fcf010d80ba58bd75bd75592ca0554d6d5b1997cf139574a9072f826f5b0b9978caaef9515123b6086f65559ae6f588f44adfa
SSDEEP

3072:ULBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/S:ROMdRQr7OB0ypmMXnl8XEPM3noSWOCr

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
2448	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\qlanhyxk\ImagePath = "C:\\Windows\\SysWOW64\\qlanhyxk\\vdswjhqq.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	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe

Deletes itself 1 IoCs

pid	Process
3420	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2900	vdswjhqq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2900 set thread context of 3420	2900	vdswjhqq.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
4996	sc.exe
508	sc.exe
1056	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4196	2364	WerFault.exe	82
2984	2900	WerFault.exe	96

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vdswjhqq.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	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.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	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 5024	2364	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	86
PID 2364 wrote to memory of 5024	2364	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	86
PID 2364 wrote to memory of 5024	2364	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	86
PID 2364 wrote to memory of 2908	2364	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	88
PID 2364 wrote to memory of 2908	2364	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	88
PID 2364 wrote to memory of 2908	2364	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	88
PID 2364 wrote to memory of 4996	2364	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	90
PID 2364 wrote to memory of 4996	2364	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	90
PID 2364 wrote to memory of 4996	2364	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	90
PID 2364 wrote to memory of 508	2364	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	92
PID 2364 wrote to memory of 508	2364	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	92
PID 2364 wrote to memory of 508	2364	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	92
PID 2364 wrote to memory of 1056	2364	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	94
PID 2364 wrote to memory of 1056	2364	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	94
PID 2364 wrote to memory of 1056	2364	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	94
PID 2364 wrote to memory of 2448	2364	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	97
PID 2364 wrote to memory of 2448	2364	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	97
PID 2364 wrote to memory of 2448	2364	2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe	97
PID 2900 wrote to memory of 3420	2900	vdswjhqq.exe	102
PID 2900 wrote to memory of 3420	2900	vdswjhqq.exe	102
PID 2900 wrote to memory of 3420	2900	vdswjhqq.exe	102
PID 2900 wrote to memory of 3420	2900	vdswjhqq.exe	102
PID 2900 wrote to memory of 3420	2900	vdswjhqq.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qlanhyxk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5024
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vdswjhqq.exe" C:\Windows\SysWOW64\qlanhyxk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2908
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qlanhyxk binPath= "C:\Windows\SysWOW64\qlanhyxk\vdswjhqq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4996
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qlanhyxk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:508
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qlanhyxk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1056
- 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:2448
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2364 -s 1280
  2⤵
  - Program crash
  PID:4196

C:\Windows\SysWOW64\qlanhyxk\vdswjhqq.exe
C:\Windows\SysWOW64\qlanhyxk\vdswjhqq.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_3c35df53659a5e0bf3470dae3ca6223f_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2900
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3420
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2900 -s 512
  2⤵
  - Program crash
  PID:2984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2364 -ip 2364
1⤵
PID:1408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 2900 -ip 2900
1⤵
PID:224

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\vdswjhqq.exe

Filesize
14.1MB

MD5
0ea2df61ceb945e4bd1c476ff04cdf48

SHA1
9a02893ab47f2389c877c3d1d6f32a0cbf3d6f12

SHA256
fda4f8c8fad4c467533e461aba0b75241fe29adb7db2aa1ef5638e7dff3d550c

SHA512
da46893d260b70c499cf207bb2bd560ef65b7f90727fbc0c0b39c63f9fd4e9255cdd19ec28016ced6da8e7c9d981de5e0f4f20589b6d45aa04aeab6e35a91380

Download Submit
memory/2364-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2364-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2364-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2364-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2364-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2364-1-0x0000000000600000-0x0000000000700000-memory.dmp

Filesize
1024KB

Download
memory/2900-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2900-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2900-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2900-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3420-14-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/3420-16-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/3420-17-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads