tofsee | ce095a4e30dda5460968c93f15abe9d6cdce4af2201395dd4b3a60c6105a7c24

Analysis

max time kernel
151s
max time network
125s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
28-01-2025 15:45

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General

Target

2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe
Size

10.3MB
MD5

dcaece4ebdb520ecb6aa2823c0c73699
SHA1

eb6cbbf5ce20c6c2ebb9c09579050892272120e1
SHA256

ce095a4e30dda5460968c93f15abe9d6cdce4af2201395dd4b3a60c6105a7c24
SHA512

c1da465a240ca5ecc8db9ee7951f25527962185f991134c8e474b6857a026db5fd3d10cdf6c0fa7d89dd09c148992273f64a28f71b2fcbab708bc55c95299c9f
SSDEEP

49152:RqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPe:RqtYc3r

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\fzmmpvbz = "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
3068	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\fzmmpvbz\ImagePath = "C:\\Windows\\SysWOW64\\fzmmpvbz\\tksqavcq.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2936	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2784	tksqavcq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2784 set thread context of 2936	2784	tksqavcq.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2196	sc.exe
2864	sc.exe
516	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tksqavcq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_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	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1688 wrote to memory of 1760	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	30
PID 1688 wrote to memory of 1760	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	30
PID 1688 wrote to memory of 1760	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	30
PID 1688 wrote to memory of 1760	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	30
PID 1688 wrote to memory of 2632	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	32
PID 1688 wrote to memory of 2632	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	32
PID 1688 wrote to memory of 2632	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	32
PID 1688 wrote to memory of 2632	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	32
PID 1688 wrote to memory of 2196	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	34
PID 1688 wrote to memory of 2196	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	34
PID 1688 wrote to memory of 2196	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	34
PID 1688 wrote to memory of 2196	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	34
PID 1688 wrote to memory of 2864	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	36
PID 1688 wrote to memory of 2864	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	36
PID 1688 wrote to memory of 2864	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	36
PID 1688 wrote to memory of 2864	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	36
PID 1688 wrote to memory of 516	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	38
PID 1688 wrote to memory of 516	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	38
PID 1688 wrote to memory of 516	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	38
PID 1688 wrote to memory of 516	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	38
PID 1688 wrote to memory of 3068	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	41
PID 1688 wrote to memory of 3068	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	41
PID 1688 wrote to memory of 3068	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	41
PID 1688 wrote to memory of 3068	1688	2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe	41
PID 2784 wrote to memory of 2936	2784	tksqavcq.exe	44
PID 2784 wrote to memory of 2936	2784	tksqavcq.exe	44
PID 2784 wrote to memory of 2936	2784	tksqavcq.exe	44
PID 2784 wrote to memory of 2936	2784	tksqavcq.exe	44
PID 2784 wrote to memory of 2936	2784	tksqavcq.exe	44
PID 2784 wrote to memory of 2936	2784	tksqavcq.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fzmmpvbz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1760
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tksqavcq.exe" C:\Windows\SysWOW64\fzmmpvbz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2632
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fzmmpvbz binPath= "C:\Windows\SysWOW64\fzmmpvbz\tksqavcq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2196
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fzmmpvbz "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 fzmmpvbz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:516
- 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:3068

C:\Windows\SysWOW64\fzmmpvbz\tksqavcq.exe
C:\Windows\SysWOW64\fzmmpvbz\tksqavcq.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-28_dcaece4ebdb520ecb6aa2823c0c73699_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2784
- 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:2936

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\tksqavcq.exe

Filesize
12.9MB

MD5
f29417892dce11496283b972de6c17db

SHA1
92169bca8dd9c3a0baee493b5a7aed68dcfa9fe8

SHA256
7dcae750b86a5d7e0566fabcc931fa332bc69c15e3aae5a7150d0c2f5acff292

SHA512
97362fa5ef352af678d17bd99866ddc9f54414cce51771e82fb73f728bfdb8e87f87384bfa82b72e0b09263b0b47e4cc8068e6c0155087958a3dfa12abd65680

Download Submit
memory/1688-6-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/1688-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1688-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/1688-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1688-8-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/1688-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2784-15-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2936-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2936-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2936-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2936-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2936-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads