tofsee | 194dda5b0d5555193c3937f595cb3b4aa8239f45f4ec0319306a278e9e400915

Analysis

max time kernel
160s
max time network
165s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
08/02/2025, 00:55

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General

Target

2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe
Size

11.6MB
MD5

6d99eca07a5748bc8d82db3049d14cc8
SHA1

6c3f7ecea602fbfdd60bec3d022ea989a3057c1b
SHA256

194dda5b0d5555193c3937f595cb3b4aa8239f45f4ec0319306a278e9e400915
SHA512

d37d30f1b36ae40e0cf04cab96ba36e7bb0015ba846fcee897b048bcce0a15e2ae3ed83b76e779d7918bb31f56a2b3bc6eca794fa74fb9489bca5ec97b80df02
SSDEEP

196608:IyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH:tXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

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\lfsaqhdf = "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
2760	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\lfsaqhdf\ImagePath = "C:\\Windows\\SysWOW64\\lfsaqhdf\\acvgnvjz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2988	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
432	acvgnvjz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 432 set thread context of 2988	432	acvgnvjz.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2848	sc.exe
2332	sc.exe
2592	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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	acvgnvjz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 2980	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	30
PID 2792 wrote to memory of 2980	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	30
PID 2792 wrote to memory of 2980	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	30
PID 2792 wrote to memory of 2980	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	30
PID 2792 wrote to memory of 2708	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	32
PID 2792 wrote to memory of 2708	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	32
PID 2792 wrote to memory of 2708	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	32
PID 2792 wrote to memory of 2708	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	32
PID 2792 wrote to memory of 2848	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	34
PID 2792 wrote to memory of 2848	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	34
PID 2792 wrote to memory of 2848	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	34
PID 2792 wrote to memory of 2848	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	34
PID 2792 wrote to memory of 2332	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	36
PID 2792 wrote to memory of 2332	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	36
PID 2792 wrote to memory of 2332	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	36
PID 2792 wrote to memory of 2332	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	36
PID 2792 wrote to memory of 2592	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	38
PID 2792 wrote to memory of 2592	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	38
PID 2792 wrote to memory of 2592	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	38
PID 2792 wrote to memory of 2592	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	38
PID 2792 wrote to memory of 2760	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	40
PID 2792 wrote to memory of 2760	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	40
PID 2792 wrote to memory of 2760	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	40
PID 2792 wrote to memory of 2760	2792	2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe	40
PID 432 wrote to memory of 2988	432	acvgnvjz.exe	43
PID 432 wrote to memory of 2988	432	acvgnvjz.exe	43
PID 432 wrote to memory of 2988	432	acvgnvjz.exe	43
PID 432 wrote to memory of 2988	432	acvgnvjz.exe	43
PID 432 wrote to memory of 2988	432	acvgnvjz.exe	43
PID 432 wrote to memory of 2988	432	acvgnvjz.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2792
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lfsaqhdf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2980
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\acvgnvjz.exe" C:\Windows\SysWOW64\lfsaqhdf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lfsaqhdf binPath= "C:\Windows\SysWOW64\lfsaqhdf\acvgnvjz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lfsaqhdf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2332
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lfsaqhdf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2592
- 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:2760

C:\Windows\SysWOW64\lfsaqhdf\acvgnvjz.exe
C:\Windows\SysWOW64\lfsaqhdf\acvgnvjz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-08_6d99eca07a5748bc8d82db3049d14cc8_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:432
- 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:2988

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\acvgnvjz.exe

Filesize
11.5MB

MD5
3f7d44f9b196f4d62aa1a940c6f7c9ee

SHA1
ec399991d717a7fec68ed228d577458081642337

SHA256
03a79e59ddf91ea35a4349470b7af8c65eaf2df2b53af9747ef7de66eeb527a3

SHA512
b789099ef144d6beb97121924b2cc804d4191ee35e980b857119bf1643d97d5b9acbbbefffd0c6e35f8d8dbdb99a9caf2c46b3fef53ce4c41bebbcc77745888c

Download Submit
memory/432-17-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2792-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2792-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2792-6-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2792-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2792-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2792-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2792-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2988-12-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2988-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2988-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2988-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2988-19-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads