tofsee | 12b0178d8d6ad98ac457790240a3c04c3b74d3b47876ab525cfcf8c0cfcfd930

Analysis

max time kernel
146s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-01-2025 18:30

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General

Target

2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe
Size

11.8MB
MD5

24bd85cfd4f367380324d69d46805978
SHA1

9ae1e14cd3733e22bf9be7f9fb8dc06ec4425abc
SHA256

12b0178d8d6ad98ac457790240a3c04c3b74d3b47876ab525cfcf8c0cfcfd930
SHA512

473902b4699dbc65d9d501f2cf3241223f039116a74dd66ea9203d4330f876956c6aa70fbaf8a00d0190e28c32dd4a00e37f0da952b6d55d0a07271d2e17b289
SSDEEP

3072:ULBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:ROMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\vjehsrps = "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
2848	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\vjehsrps\ImagePath = "C:\\Windows\\SysWOW64\\vjehsrps\\tcwbtsnj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2772	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2840	tcwbtsnj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2840 set thread context of 2772	2840	tcwbtsnj.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2352	sc.exe
1692	sc.exe
3024	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	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.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	tcwbtsnj.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1628 wrote to memory of 840	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	30
PID 1628 wrote to memory of 840	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	30
PID 1628 wrote to memory of 840	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	30
PID 1628 wrote to memory of 840	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	30
PID 1628 wrote to memory of 2460	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	32
PID 1628 wrote to memory of 2460	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	32
PID 1628 wrote to memory of 2460	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	32
PID 1628 wrote to memory of 2460	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	32
PID 1628 wrote to memory of 2352	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	34
PID 1628 wrote to memory of 2352	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	34
PID 1628 wrote to memory of 2352	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	34
PID 1628 wrote to memory of 2352	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	34
PID 1628 wrote to memory of 1692	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	36
PID 1628 wrote to memory of 1692	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	36
PID 1628 wrote to memory of 1692	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	36
PID 1628 wrote to memory of 1692	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	36
PID 1628 wrote to memory of 3024	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	39
PID 1628 wrote to memory of 3024	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	39
PID 1628 wrote to memory of 3024	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	39
PID 1628 wrote to memory of 3024	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	39
PID 2840 wrote to memory of 2772	2840	tcwbtsnj.exe	42
PID 2840 wrote to memory of 2772	2840	tcwbtsnj.exe	42
PID 2840 wrote to memory of 2772	2840	tcwbtsnj.exe	42
PID 2840 wrote to memory of 2772	2840	tcwbtsnj.exe	42
PID 2840 wrote to memory of 2772	2840	tcwbtsnj.exe	42
PID 2840 wrote to memory of 2772	2840	tcwbtsnj.exe	42
PID 1628 wrote to memory of 2848	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	43
PID 1628 wrote to memory of 2848	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	43
PID 1628 wrote to memory of 2848	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	43
PID 1628 wrote to memory of 2848	1628	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1628
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vjehsrps\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:840
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tcwbtsnj.exe" C:\Windows\SysWOW64\vjehsrps\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2460
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vjehsrps binPath= "C:\Windows\SysWOW64\vjehsrps\tcwbtsnj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2352
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vjehsrps "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vjehsrps
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3024
- 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:2848

C:\Windows\SysWOW64\vjehsrps\tcwbtsnj.exe
C:\Windows\SysWOW64\vjehsrps\tcwbtsnj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2840
- 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:2772

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\tcwbtsnj.exe

Filesize
14.6MB

MD5
631e848342cf4305f8d632c2cda76bff

SHA1
7be4e45efca537aebfffbd164011cf0f1caaf76b

SHA256
1cb0959b7a22b4bcb461fbb85d0a2a86ce2798dc6fa1568021fedcf92f247320

SHA512
785f8e6f5caccf05ac92453bb8ff6a5f9bcf069098b27495bf38b8214efbad747a5c798dcfc68691863bf649932f797167d7d1cf14825ebc229ec76cff5b5653

Download Submit
memory/1628-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1628-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1628-1-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/1628-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1628-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1628-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2772-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2772-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2772-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2772-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2772-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2840-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads