tofsee | 55a8d96b35183d73004d67690ddf5f91a29b044b1ad4669afa6e0fd16198775a

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-02-2025 20:49

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General

Target

2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe
Size

10.7MB
MD5

0d14ff3fe3c0ea2c9fc194e8364499bc
SHA1

e9288930dff1c6f786aaf1797937caf4b31ce455
SHA256

55a8d96b35183d73004d67690ddf5f91a29b044b1ad4669afa6e0fd16198775a
SHA512

7a71ba516df0ec64384620049ddd05896707c3ec5a18bf0f82e5d15db2a916e0166fc122c3386b0025c4191c092c68da3999c27b84e8655b22c4f4dd7af4807e
SSDEEP

6144:zLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQF:ITYe+D2jFu+iZoUFhAz

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\tjxkcmtg = "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
2784	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\tjxkcmtg\ImagePath = "C:\\Windows\\SysWOW64\\tjxkcmtg\\nzymxhpj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2576	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2544	nzymxhpj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2544 set thread context of 2576	2544	nzymxhpj.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2064	sc.exe
2788	sc.exe
2688	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	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_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	nzymxhpj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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 1780 wrote to memory of 1920	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	31
PID 1780 wrote to memory of 1920	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	31
PID 1780 wrote to memory of 1920	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	31
PID 1780 wrote to memory of 1920	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	31
PID 1780 wrote to memory of 2136	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	33
PID 1780 wrote to memory of 2136	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	33
PID 1780 wrote to memory of 2136	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	33
PID 1780 wrote to memory of 2136	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	33
PID 1780 wrote to memory of 2064	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	35
PID 1780 wrote to memory of 2064	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	35
PID 1780 wrote to memory of 2064	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	35
PID 1780 wrote to memory of 2064	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	35
PID 1780 wrote to memory of 2788	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	37
PID 1780 wrote to memory of 2788	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	37
PID 1780 wrote to memory of 2788	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	37
PID 1780 wrote to memory of 2788	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	37
PID 1780 wrote to memory of 2688	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	39
PID 1780 wrote to memory of 2688	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	39
PID 1780 wrote to memory of 2688	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	39
PID 1780 wrote to memory of 2688	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	39
PID 1780 wrote to memory of 2784	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	42
PID 1780 wrote to memory of 2784	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	42
PID 1780 wrote to memory of 2784	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	42
PID 1780 wrote to memory of 2784	1780	2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe	42
PID 2544 wrote to memory of 2576	2544	nzymxhpj.exe	44
PID 2544 wrote to memory of 2576	2544	nzymxhpj.exe	44
PID 2544 wrote to memory of 2576	2544	nzymxhpj.exe	44
PID 2544 wrote to memory of 2576	2544	nzymxhpj.exe	44
PID 2544 wrote to memory of 2576	2544	nzymxhpj.exe	44
PID 2544 wrote to memory of 2576	2544	nzymxhpj.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1780
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tjxkcmtg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1920
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nzymxhpj.exe" C:\Windows\SysWOW64\tjxkcmtg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2136
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tjxkcmtg binPath= "C:\Windows\SysWOW64\tjxkcmtg\nzymxhpj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2064
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tjxkcmtg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2788
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tjxkcmtg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2688
- 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:2784

C:\Windows\SysWOW64\tjxkcmtg\nzymxhpj.exe
C:\Windows\SysWOW64\tjxkcmtg\nzymxhpj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_0d14ff3fe3c0ea2c9fc194e8364499bc_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2544
- 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:2576

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\nzymxhpj.exe

Filesize
12.3MB

MD5
54509b31bf1d674d79c4fd4fc9bfa513

SHA1
d83ee8b0026b7f12ae938c6025ce2f131d96a5d9

SHA256
aa1316c1bf1be75996cecfc5b7afca43307fd8060af33acff626539cbed7c9c2

SHA512
fc89840feb094a14b560242cd22eac8b86346548908a2332131eda9b2256eb8d0aafa1f6652872192825b426f07946136a8c4650aae02583cac072a9138b16a3

Download Submit
memory/1780-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1780-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1780-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1780-7-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1780-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1780-1-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download
memory/2544-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2576-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2576-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2576-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2576-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2576-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads