tofsee | 996e55ff7dfab4bdc3cd2bd847658ac6da3c5a1e8634e5e9d0e64bcb784ea52b

Analysis

max time kernel
145s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29/01/2025, 17:33

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General

Target

2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe
Size

13.5MB
MD5

9d96d9c5193edd88a9d0186b176ce37c
SHA1

2bb0f83db1e961217eaf2c4a9ffbf638fd9e22e8
SHA256

996e55ff7dfab4bdc3cd2bd847658ac6da3c5a1e8634e5e9d0e64bcb784ea52b
SHA512

d254a77387342070434f346f52faf1cb5ceca3df4d6331eb558685704f180774ad64be410923db6cba0c30978df07cd40e50f99bb85fd7d98e836300c367f8bb
SSDEEP

3072:zLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:6OMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\gxfmtvgt = "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
2964	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\gxfmtvgt\ImagePath = "C:\\Windows\\SysWOW64\\gxfmtvgt\\wvjlzwxp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2736	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3000	wvjlzwxp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3000 set thread context of 2736	3000	wvjlzwxp.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2324	sc.exe
2724	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 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wvjlzwxp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_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	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2552 wrote to memory of 1944	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	30
PID 2552 wrote to memory of 1944	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	30
PID 2552 wrote to memory of 1944	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	30
PID 2552 wrote to memory of 1944	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	30
PID 2552 wrote to memory of 2416	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	32
PID 2552 wrote to memory of 2416	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	32
PID 2552 wrote to memory of 2416	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	32
PID 2552 wrote to memory of 2416	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	32
PID 2552 wrote to memory of 2324	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	35
PID 2552 wrote to memory of 2324	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	35
PID 2552 wrote to memory of 2324	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	35
PID 2552 wrote to memory of 2324	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	35
PID 2552 wrote to memory of 2724	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	37
PID 2552 wrote to memory of 2724	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	37
PID 2552 wrote to memory of 2724	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	37
PID 2552 wrote to memory of 2724	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	37
PID 2552 wrote to memory of 2896	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	39
PID 2552 wrote to memory of 2896	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	39
PID 2552 wrote to memory of 2896	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	39
PID 2552 wrote to memory of 2896	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	39
PID 3000 wrote to memory of 2736	3000	wvjlzwxp.exe	42
PID 3000 wrote to memory of 2736	3000	wvjlzwxp.exe	42
PID 3000 wrote to memory of 2736	3000	wvjlzwxp.exe	42
PID 3000 wrote to memory of 2736	3000	wvjlzwxp.exe	42
PID 3000 wrote to memory of 2736	3000	wvjlzwxp.exe	42
PID 3000 wrote to memory of 2736	3000	wvjlzwxp.exe	42
PID 2552 wrote to memory of 2964	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	43
PID 2552 wrote to memory of 2964	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	43
PID 2552 wrote to memory of 2964	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	43
PID 2552 wrote to memory of 2964	2552	2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2552
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gxfmtvgt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1944
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wvjlzwxp.exe" C:\Windows\SysWOW64\gxfmtvgt\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2416
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gxfmtvgt binPath= "C:\Windows\SysWOW64\gxfmtvgt\wvjlzwxp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2324
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gxfmtvgt "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2724
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gxfmtvgt
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2896
- 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:2964

C:\Windows\SysWOW64\gxfmtvgt\wvjlzwxp.exe
C:\Windows\SysWOW64\gxfmtvgt\wvjlzwxp.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-29_9d96d9c5193edd88a9d0186b176ce37c_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3000
- 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:2736

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

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Downloads

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

Filesize
10.7MB

MD5
a0fb690d066b38b8c4cbe840dfa238ae

SHA1
9669547d7caf42433924be1f7813d42dfadf746f

SHA256
599ff88e88e75134035e23cdf7e6b0f5300aeba809ef1560c280ea2b17ce1dac

SHA512
420341b4e80401f8f199aafc4a1e6aba22a85459b2f3946352392af1ce4176f302b2c273a5fbc4ef453301df4820ab3f868e9649772239d69b2db57e96047f4d

Download Submit
memory/2552-1-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/2552-3-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2552-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2552-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2552-15-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2736-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2736-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2736-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2736-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2736-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3000-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads