tofsee | 5d24aa9379dfd9b590efd8e7346fef96609a3d09b99e2bf28ffd8fdc11f204fb

Analysis

max time kernel
149s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-02-2025 08:25

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe
Size

12.4MB
MD5

3c18d492b070d12b0410b79cc5e04490
SHA1

a55d2116d24a0e1d6b19bf7cab14c425bbae3c6f
SHA256

5d24aa9379dfd9b590efd8e7346fef96609a3d09b99e2bf28ffd8fdc11f204fb
SHA512

6de497b6d76c2b875b498a8b279c92a7539284880b28e9d5433653ade9bcd64ee4eaf5e337b240ef7320e29d0fe706c4109cdb41a67ffc64a7458408ef1d32eb
SSDEEP

24576:uEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZD:HfotR

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

Windows security bypass 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\ghvtkksy = "0"	svchost.exe

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
2692	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\ghvtkksy\ImagePath = "C:\\Windows\\SysWOW64\\ghvtkksy\\gbfxnyay.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2204	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2712	gbfxnyay.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2712 set thread context of 2204	2712	gbfxnyay.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
3032	sc.exe
2056	sc.exe
2896	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	gbfxnyay.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-07_3c18d492b070d12b0410b79cc5e04490_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	svchost.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 30 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 2544	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	31
PID 2516 wrote to memory of 2544	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	31
PID 2516 wrote to memory of 2544	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	31
PID 2516 wrote to memory of 2544	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	31
PID 2516 wrote to memory of 2428	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	33
PID 2516 wrote to memory of 2428	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	33
PID 2516 wrote to memory of 2428	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	33
PID 2516 wrote to memory of 2428	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	33
PID 2516 wrote to memory of 2056	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	35
PID 2516 wrote to memory of 2056	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	35
PID 2516 wrote to memory of 2056	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	35
PID 2516 wrote to memory of 2056	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	35
PID 2516 wrote to memory of 2896	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	37
PID 2516 wrote to memory of 2896	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	37
PID 2516 wrote to memory of 2896	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	37
PID 2516 wrote to memory of 2896	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	37
PID 2516 wrote to memory of 3032	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	39
PID 2516 wrote to memory of 3032	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	39
PID 2516 wrote to memory of 3032	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	39
PID 2516 wrote to memory of 3032	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	39
PID 2712 wrote to memory of 2204	2712	gbfxnyay.exe	42
PID 2712 wrote to memory of 2204	2712	gbfxnyay.exe	42
PID 2712 wrote to memory of 2204	2712	gbfxnyay.exe	42
PID 2712 wrote to memory of 2204	2712	gbfxnyay.exe	42
PID 2712 wrote to memory of 2204	2712	gbfxnyay.exe	42
PID 2712 wrote to memory of 2204	2712	gbfxnyay.exe	42
PID 2516 wrote to memory of 2692	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	43
PID 2516 wrote to memory of 2692	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	43
PID 2516 wrote to memory of 2692	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	43
PID 2516 wrote to memory of 2692	2516	2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ghvtkksy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2544
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gbfxnyay.exe" C:\Windows\SysWOW64\ghvtkksy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2428
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ghvtkksy binPath= "C:\Windows\SysWOW64\ghvtkksy\gbfxnyay.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2056
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ghvtkksy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2896
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ghvtkksy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3032
- 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:2692

C:\Windows\SysWOW64\ghvtkksy\gbfxnyay.exe
C:\Windows\SysWOW64\ghvtkksy\gbfxnyay.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_3c18d492b070d12b0410b79cc5e04490_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2712
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2204

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
13.6MB

MD5
8003f93e3fa8961f5a4582bf021dff14

SHA1
d34f1b348e33ddd9e16f68da8f594a09a7ff7563

SHA256
e5197407409045f784dab8948861f5e31860500dc205fa1e1a78dcc9f1b47ffe

SHA512
ef038eb66d3a15e370d87a2f1df835cc58ee04204066ed314479d0c8b3794d9e2031a13e2d13e474ac6fbf5838f994213f58a78f9f9cf2bff5fa265d806aeffb

Download Submit
memory/2204-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2204-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2204-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2204-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2204-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2516-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2516-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2516-1-0x0000000000600000-0x0000000000700000-memory.dmp

Filesize
1024KB

Download
memory/2516-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2516-14-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2516-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2712-12-0x0000000000400000-0x000000000044E000-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