tofsee | 68b78d9be1fbb73b5d29c45c3f6cdcd136d017d6d113d8356fcb61962a874afa

Analysis

max time kernel
147s
max time network
126s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
01/02/2025, 20:43

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe
Size

13.7MB
MD5

dfd37cc4b5dc1b09406e8ebd4514d2ab
SHA1

93f80ea2399a59745f42070151b66448581c5693
SHA256

68b78d9be1fbb73b5d29c45c3f6cdcd136d017d6d113d8356fcb61962a874afa
SHA512

7a9f4f93365629614fe3374e8aae07356dfc7c64858bd6c6a5975691df6fb3fd85c1d7fdc8c738734aadb3e0ac69bd69d430f1aeb29c0e3a32cb0f3119a06268
SSDEEP

49152:oqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPn:oqtYc3

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\rxgjozmf = "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
2852	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\rxgjozmf\ImagePath = "C:\\Windows\\SysWOW64\\rxgjozmf\\acvgnvjz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2664	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2756	acvgnvjz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2756 set thread context of 2664	2756	acvgnvjz.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2744	sc.exe
2976	sc.exe
2928	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

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	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.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	svchost.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	acvgnvjz.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 2300	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	30
PID 3048 wrote to memory of 2300	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	30
PID 3048 wrote to memory of 2300	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	30
PID 3048 wrote to memory of 2300	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	30
PID 3048 wrote to memory of 2796	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	32
PID 3048 wrote to memory of 2796	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	32
PID 3048 wrote to memory of 2796	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	32
PID 3048 wrote to memory of 2796	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	32
PID 3048 wrote to memory of 2744	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	34
PID 3048 wrote to memory of 2744	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	34
PID 3048 wrote to memory of 2744	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	34
PID 3048 wrote to memory of 2744	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	34
PID 3048 wrote to memory of 2976	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	36
PID 3048 wrote to memory of 2976	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	36
PID 3048 wrote to memory of 2976	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	36
PID 3048 wrote to memory of 2976	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	36
PID 3048 wrote to memory of 2928	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	38
PID 3048 wrote to memory of 2928	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	38
PID 3048 wrote to memory of 2928	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	38
PID 3048 wrote to memory of 2928	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	38
PID 3048 wrote to memory of 2852	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	40
PID 3048 wrote to memory of 2852	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	40
PID 3048 wrote to memory of 2852	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	40
PID 3048 wrote to memory of 2852	3048	2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe	40
PID 2756 wrote to memory of 2664	2756	acvgnvjz.exe	43
PID 2756 wrote to memory of 2664	2756	acvgnvjz.exe	43
PID 2756 wrote to memory of 2664	2756	acvgnvjz.exe	43
PID 2756 wrote to memory of 2664	2756	acvgnvjz.exe	43
PID 2756 wrote to memory of 2664	2756	acvgnvjz.exe	43
PID 2756 wrote to memory of 2664	2756	acvgnvjz.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rxgjozmf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2300
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\acvgnvjz.exe" C:\Windows\SysWOW64\rxgjozmf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2796
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rxgjozmf binPath= "C:\Windows\SysWOW64\rxgjozmf\acvgnvjz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rxgjozmf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2976
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rxgjozmf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2928
- 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:2852

C:\Windows\SysWOW64\rxgjozmf\acvgnvjz.exe
C:\Windows\SysWOW64\rxgjozmf\acvgnvjz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_dfd37cc4b5dc1b09406e8ebd4514d2ab_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756
- 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:2664

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\acvgnvjz.exe

Filesize
13.8MB

MD5
7f4786a6e4fe97bfaeabe361924a8ca6

SHA1
454802abca610637ef6013398f5dcafdd27a7463

SHA256
4119c0f3104f7ad95952a660548c28ec83c7b27b11bf67b672043d5dd954bbc7

SHA512
54ac466948e203894c2e1f3d4a22794a4e18e9e11f98b1b65d3935860c7af80a5f2d2542f878f14e110cda3c30d23f59a98b4442e51ccc0471c20e012209ec18

Download Submit
memory/2664-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2664-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2664-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2664-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2664-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2756-16-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/3048-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3048-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/3048-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3048-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/3048-7-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/3048-1-0x0000000002EB0000-0x0000000002FB0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads