tofsee | 0ac1a0b9c4fcd4c3b20d15b7d59f3a10356a23df796d4f12b2ef5dbd123dc200

Analysis

max time kernel
144s
max time network
116s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
06-02-2025 07:04

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General

Target

2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe
Size

11.2MB
MD5

cab9149269e443fdbc3f398e69a5ae04
SHA1

d59887c34754e965b8ec02ab985f9b7b1cc19ece
SHA256

0ac1a0b9c4fcd4c3b20d15b7d59f3a10356a23df796d4f12b2ef5dbd123dc200
SHA512

4d309050b9a2fdb836b21336a9cafe8cea5039b650ac747a2d6713627938ec7f9da2ce9c2f25822fdc343bf0eec49c2002063b412d469be0784bc931c011016c
SSDEEP

24576:rEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZb:4fotp

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\mamzenvb = "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
2544	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\mamzenvb\ImagePath = "C:\\Windows\\SysWOW64\\mamzenvb\\kntncnye.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2184	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2528	kntncnye.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2528 set thread context of 2184	2528	kntncnye.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2688	sc.exe
2864	sc.exe
2692	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	kntncnye.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2636 wrote to memory of 2820	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	30
PID 2636 wrote to memory of 2820	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	30
PID 2636 wrote to memory of 2820	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	30
PID 2636 wrote to memory of 2820	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	30
PID 2636 wrote to memory of 2808	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	32
PID 2636 wrote to memory of 2808	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	32
PID 2636 wrote to memory of 2808	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	32
PID 2636 wrote to memory of 2808	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	32
PID 2636 wrote to memory of 2688	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	34
PID 2636 wrote to memory of 2688	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	34
PID 2636 wrote to memory of 2688	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	34
PID 2636 wrote to memory of 2688	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	34
PID 2636 wrote to memory of 2864	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	36
PID 2636 wrote to memory of 2864	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	36
PID 2636 wrote to memory of 2864	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	36
PID 2636 wrote to memory of 2864	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	36
PID 2636 wrote to memory of 2692	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	38
PID 2636 wrote to memory of 2692	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	38
PID 2636 wrote to memory of 2692	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	38
PID 2636 wrote to memory of 2692	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	38
PID 2636 wrote to memory of 2544	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	41
PID 2636 wrote to memory of 2544	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	41
PID 2636 wrote to memory of 2544	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	41
PID 2636 wrote to memory of 2544	2636	2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe	41
PID 2528 wrote to memory of 2184	2528	kntncnye.exe	43
PID 2528 wrote to memory of 2184	2528	kntncnye.exe	43
PID 2528 wrote to memory of 2184	2528	kntncnye.exe	43
PID 2528 wrote to memory of 2184	2528	kntncnye.exe	43
PID 2528 wrote to memory of 2184	2528	kntncnye.exe	43
PID 2528 wrote to memory of 2184	2528	kntncnye.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2636
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mamzenvb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kntncnye.exe" C:\Windows\SysWOW64\mamzenvb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mamzenvb binPath= "C:\Windows\SysWOW64\mamzenvb\kntncnye.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-06_cab9149269e443fdbc3f398e69a5ae04_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 mamzenvb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2864
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mamzenvb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2692
- 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:2544

C:\Windows\SysWOW64\mamzenvb\kntncnye.exe
C:\Windows\SysWOW64\mamzenvb\kntncnye.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-06_cab9149269e443fdbc3f398e69a5ae04_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2528
- 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:2184

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\kntncnye.exe

Filesize
11.1MB

MD5
75dde3531cadfed3418d97420a031062

SHA1
b2090f5e0f618ab13abc691996b4a9adb31d3c35

SHA256
03087d12596e7b9656818b331d2af9627d06d74fb78c655fdc32d60bd342309d

SHA512
ef14c78dc20952e82f301cce513e5220603b201504a0fa250140bc5d5e611ec4f6608aa104e71c26f2b086d349290abd1bb7ad3048a73f0188b118987fcb399e

Download Submit
memory/2184-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2184-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2184-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2184-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2184-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2528-16-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2636-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2636-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2636-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2636-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2636-9-0x00000000002F0000-0x00000000003F0000-memory.dmp

Filesize
1024KB

Download
memory/2636-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2636-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads