tofsee | 7a0d089d8abbfc6489a7ec957a02f9809ea55347ef9a7d67e881df16278f9aec

Analysis

max time kernel
143s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-02-2025 14:46

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General

Target

2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe
Size

14.5MB
MD5

1b7b67be0014a6822a1f26889820f99f
SHA1

d01ecab8311fc9567575b568138773c08ccade22
SHA256

7a0d089d8abbfc6489a7ec957a02f9809ea55347ef9a7d67e881df16278f9aec
SHA512

3563b4a21702e43b25d934755f2759ae386bb67de91f1512dc8a99f23e51490cb1068a5a4f876f114d6be29857e3e96f1fad8aac9e47b44c35c04cd74424d6d5
SSDEEP

393216:NXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXL:5

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\jvzhzquh = "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
2720	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\jvzhzquh\ImagePath = "C:\\Windows\\SysWOW64\\jvzhzquh\\zbwcvis.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2632	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2824	zbwcvis.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2824 set thread context of 2632	2824	zbwcvis.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2688	sc.exe
2704	sc.exe
2832	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zbwcvis.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2164	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	30
PID 2520 wrote to memory of 2164	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	30
PID 2520 wrote to memory of 2164	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	30
PID 2520 wrote to memory of 2164	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	30
PID 2520 wrote to memory of 1528	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	32
PID 2520 wrote to memory of 1528	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	32
PID 2520 wrote to memory of 1528	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	32
PID 2520 wrote to memory of 1528	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	32
PID 2520 wrote to memory of 2688	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	34
PID 2520 wrote to memory of 2688	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	34
PID 2520 wrote to memory of 2688	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	34
PID 2520 wrote to memory of 2688	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	34
PID 2520 wrote to memory of 2704	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	36
PID 2520 wrote to memory of 2704	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	36
PID 2520 wrote to memory of 2704	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	36
PID 2520 wrote to memory of 2704	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	36
PID 2520 wrote to memory of 2832	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	38
PID 2520 wrote to memory of 2832	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	38
PID 2520 wrote to memory of 2832	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	38
PID 2520 wrote to memory of 2832	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	38
PID 2520 wrote to memory of 2720	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	41
PID 2520 wrote to memory of 2720	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	41
PID 2520 wrote to memory of 2720	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	41
PID 2520 wrote to memory of 2720	2520	2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe	41
PID 2824 wrote to memory of 2632	2824	zbwcvis.exe	43
PID 2824 wrote to memory of 2632	2824	zbwcvis.exe	43
PID 2824 wrote to memory of 2632	2824	zbwcvis.exe	43
PID 2824 wrote to memory of 2632	2824	zbwcvis.exe	43
PID 2824 wrote to memory of 2632	2824	zbwcvis.exe	43
PID 2824 wrote to memory of 2632	2824	zbwcvis.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jvzhzquh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2164
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zbwcvis.exe" C:\Windows\SysWOW64\jvzhzquh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1528
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jvzhzquh binPath= "C:\Windows\SysWOW64\jvzhzquh\zbwcvis.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2688
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jvzhzquh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jvzhzquh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2832
- 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:2720

C:\Windows\SysWOW64\jvzhzquh\zbwcvis.exe
C:\Windows\SysWOW64\jvzhzquh\zbwcvis.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-06_1b7b67be0014a6822a1f26889820f99f_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2824
- 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:2632

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\zbwcvis.exe

Filesize
12.3MB

MD5
7a2fec394a2c5368bf3037d2c66bf313

SHA1
92fe82e49aa5797eb7c5fadb3d9813fe48ab66a2

SHA256
052f2096472a253def1f9ba7111d3bffac28a9513589397e287219e0c4eb869e

SHA512
a93023ffa5487023fa4001ef6711f9b663e9a1268d919f8912985889ddf6ea65e249bef8b1a90f1b27a536bcb23acbf4419872a2c8e27d00e4b51606d41b9269

Download Submit
memory/2520-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2520-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2520-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2520-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2520-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2520-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/2632-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2632-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2632-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2632-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2632-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2824-17-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads