tofsee | 7a102e4f927d482372077e66f62e8c97b0ed1e043a5007a8691ac0a2d50513c7

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-02-2025 22:27

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General

Target

2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe
Size

11.1MB
MD5

7867b919ca8f673983a2870544a88110
SHA1

4780d79a243ae7f189831178c37ce4e68e33decf
SHA256

7a102e4f927d482372077e66f62e8c97b0ed1e043a5007a8691ac0a2d50513c7
SHA512

e7ccf1d2f3f9d58778e71249c1199a529de823e1cca597970868fc4f21a09895693bce3a771246094cf40a1ef97bbc607caa19dfeeb8f2599b48ed5371ab355f
SSDEEP

49152:WqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPe:WqtYc3v

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\wgcvvots = "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
2592	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\wgcvvots\ImagePath = "C:\\Windows\\SysWOW64\\wgcvvots\\oiizktkm.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2820	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2732	oiizktkm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2732 set thread context of 2820	2732	oiizktkm.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2376	sc.exe
2768	sc.exe
2096	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	oiizktkm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-05_7867b919ca8f673983a2870544a88110_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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 808 wrote to memory of 2308	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	30
PID 808 wrote to memory of 2308	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	30
PID 808 wrote to memory of 2308	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	30
PID 808 wrote to memory of 2308	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	30
PID 808 wrote to memory of 2052	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	32
PID 808 wrote to memory of 2052	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	32
PID 808 wrote to memory of 2052	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	32
PID 808 wrote to memory of 2052	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	32
PID 808 wrote to memory of 2376	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	34
PID 808 wrote to memory of 2376	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	34
PID 808 wrote to memory of 2376	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	34
PID 808 wrote to memory of 2376	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	34
PID 808 wrote to memory of 2768	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	36
PID 808 wrote to memory of 2768	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	36
PID 808 wrote to memory of 2768	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	36
PID 808 wrote to memory of 2768	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	36
PID 808 wrote to memory of 2096	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	38
PID 808 wrote to memory of 2096	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	38
PID 808 wrote to memory of 2096	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	38
PID 808 wrote to memory of 2096	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	38
PID 2732 wrote to memory of 2820	2732	oiizktkm.exe	41
PID 2732 wrote to memory of 2820	2732	oiizktkm.exe	41
PID 2732 wrote to memory of 2820	2732	oiizktkm.exe	41
PID 2732 wrote to memory of 2820	2732	oiizktkm.exe	41
PID 2732 wrote to memory of 2820	2732	oiizktkm.exe	41
PID 2732 wrote to memory of 2820	2732	oiizktkm.exe	41
PID 808 wrote to memory of 2592	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	42
PID 808 wrote to memory of 2592	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	42
PID 808 wrote to memory of 2592	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	42
PID 808 wrote to memory of 2592	808	2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:808
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wgcvvots\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2308
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oiizktkm.exe" C:\Windows\SysWOW64\wgcvvots\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2052
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wgcvvots binPath= "C:\Windows\SysWOW64\wgcvvots\oiizktkm.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2376
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wgcvvots "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wgcvvots
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2096
- 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:2592

C:\Windows\SysWOW64\wgcvvots\oiizktkm.exe
C:\Windows\SysWOW64\wgcvvots\oiizktkm.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-05_7867b919ca8f673983a2870544a88110_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2732
- 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:2820

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\oiizktkm.exe

Filesize
14.3MB

MD5
bdfff05dd7ad370dd82adf8c9fd8bc94

SHA1
2b4a6cef5342cdc9925bd36acecb2e0ba55be21b

SHA256
4691b2fd4ae32c2e070e45a44ddf3ffe2a75df9c997c34fd8f0aaa8b25911305

SHA512
55a6fedebea9b742eef125823381d201606566571cea225ccc5ea1bbbc5c74655a330303ec63ac8bdbdf0355ecbbfe1e11c9640f411b7a2aea96a0baf5fb7629

Download Submit
memory/808-1-0x0000000002F90000-0x0000000003090000-memory.dmp

Filesize
1024KB

Download
memory/808-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/808-4-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/808-15-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/808-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2732-13-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2820-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2820-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2820-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2820-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2820-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads