tofsee | 4940b64d036adb8a281feeb4976cbf45c0e465ac4ee72f0c37a7a1e1ff56de2c

Analysis

max time kernel
149s
max time network
124s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
28/01/2025, 17:41

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General

Target

2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe
Size

12.0MB
MD5

c637089ab54314c90986ec81a304e0dc
SHA1

014dc7831a4f8177e5fc23937859b89e0de2de6b
SHA256

4940b64d036adb8a281feeb4976cbf45c0e465ac4ee72f0c37a7a1e1ff56de2c
SHA512

914a2fdade109e75eefc435498d23a1a72f6b27ae146432bbab4c125f0d98429e9fb93982607714c2a9c011138c46d7d70188f4385fd684c1cd89a5cc82a1acd
SSDEEP

24576:MpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttd:ooo

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\jmvbjrmz = "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
2716	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\jmvbjrmz\ImagePath = "C:\\Windows\\SysWOW64\\jmvbjrmz\\fkupjvsu.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2856	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2768	fkupjvsu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2768 set thread context of 2856	2768	fkupjvsu.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2832	sc.exe
2944	sc.exe
2808	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-28_c637089ab54314c90986ec81a304e0dc_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fkupjvsu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 2056	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	29
PID 2604 wrote to memory of 2056	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	29
PID 2604 wrote to memory of 2056	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	29
PID 2604 wrote to memory of 2056	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	29
PID 2604 wrote to memory of 2068	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	31
PID 2604 wrote to memory of 2068	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	31
PID 2604 wrote to memory of 2068	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	31
PID 2604 wrote to memory of 2068	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	31
PID 2604 wrote to memory of 2832	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	33
PID 2604 wrote to memory of 2832	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	33
PID 2604 wrote to memory of 2832	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	33
PID 2604 wrote to memory of 2832	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	33
PID 2604 wrote to memory of 2944	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	35
PID 2604 wrote to memory of 2944	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	35
PID 2604 wrote to memory of 2944	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	35
PID 2604 wrote to memory of 2944	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	35
PID 2604 wrote to memory of 2808	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	37
PID 2604 wrote to memory of 2808	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	37
PID 2604 wrote to memory of 2808	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	37
PID 2604 wrote to memory of 2808	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	37
PID 2604 wrote to memory of 2716	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	39
PID 2604 wrote to memory of 2716	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	39
PID 2604 wrote to memory of 2716	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	39
PID 2604 wrote to memory of 2716	2604	2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe	39
PID 2768 wrote to memory of 2856	2768	fkupjvsu.exe	42
PID 2768 wrote to memory of 2856	2768	fkupjvsu.exe	42
PID 2768 wrote to memory of 2856	2768	fkupjvsu.exe	42
PID 2768 wrote to memory of 2856	2768	fkupjvsu.exe	42
PID 2768 wrote to memory of 2856	2768	fkupjvsu.exe	42
PID 2768 wrote to memory of 2856	2768	fkupjvsu.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2604
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jmvbjrmz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2056
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fkupjvsu.exe" C:\Windows\SysWOW64\jmvbjrmz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2068
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jmvbjrmz binPath= "C:\Windows\SysWOW64\jmvbjrmz\fkupjvsu.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jmvbjrmz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2944
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jmvbjrmz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- 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:2716

C:\Windows\SysWOW64\jmvbjrmz\fkupjvsu.exe
C:\Windows\SysWOW64\jmvbjrmz\fkupjvsu.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-28_c637089ab54314c90986ec81a304e0dc_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2768
- 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:2856

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\fkupjvsu.exe

Filesize
10.7MB

MD5
78891315f938a9f709f5481a4669f8c9

SHA1
fbd0ae28bf914cb43ce44ee03c8b768a7e390a35

SHA256
56faa9ffe232b66a721be50615a70e860623e76d42bf0592afbbcd13fef060bc

SHA512
a652972f0658341ada8b8e93d3ddfd02dc4dc85c04623c0bf83c5884665ccea44056f669dee6ca2867a4713229b96033401b7cc93d3f79b88554dd816509981c

Download Submit
memory/2604-7-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2604-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2604-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2604-6-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2604-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2604-1-0x00000000004C0000-0x00000000005C0000-memory.dmp

Filesize
1024KB

Download
memory/2768-15-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2856-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2856-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2856-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2856-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2856-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads