tofsee | 8aeb2c30634da05e2c33aec859f61d05a3b0f69d41e76562fe37cc784fc1566c

Analysis

max time kernel
144s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-01-2025 23:15

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General

Target

2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe
Size

11.1MB
MD5

c8478f4f5d94b9ac131ff2d84e5d3909
SHA1

4b7ca3f00711ea4a9c8b5aeef648044fc7e85255
SHA256

8aeb2c30634da05e2c33aec859f61d05a3b0f69d41e76562fe37cc784fc1566c
SHA512

a63d72342ad22ceba03c11a4ffe3e08c37bd9fc62ba34b0fec10bf4df22958638f54b37e2f9e3d3e0f59e2220045488b2ae7025e12d4480c13c7391b8a8a4199
SSDEEP

196608:WyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:7XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXn

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\zczkkmis = "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
2740	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\zczkkmis\ImagePath = "C:\\Windows\\SysWOW64\\zczkkmis\\llmxstrz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2812	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2252	llmxstrz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2252 set thread context of 2812	2252	llmxstrz.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2228	sc.exe
2808	sc.exe
2668	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	llmxstrz.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	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2460 wrote to memory of 2456	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	31
PID 2460 wrote to memory of 2456	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	31
PID 2460 wrote to memory of 2456	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	31
PID 2460 wrote to memory of 2456	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	31
PID 2460 wrote to memory of 3012	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	33
PID 2460 wrote to memory of 3012	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	33
PID 2460 wrote to memory of 3012	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	33
PID 2460 wrote to memory of 3012	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	33
PID 2460 wrote to memory of 2228	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	35
PID 2460 wrote to memory of 2228	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	35
PID 2460 wrote to memory of 2228	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	35
PID 2460 wrote to memory of 2228	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	35
PID 2460 wrote to memory of 2808	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	37
PID 2460 wrote to memory of 2808	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	37
PID 2460 wrote to memory of 2808	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	37
PID 2460 wrote to memory of 2808	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	37
PID 2460 wrote to memory of 2668	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	39
PID 2460 wrote to memory of 2668	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	39
PID 2460 wrote to memory of 2668	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	39
PID 2460 wrote to memory of 2668	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	39
PID 2252 wrote to memory of 2812	2252	llmxstrz.exe	42
PID 2252 wrote to memory of 2812	2252	llmxstrz.exe	42
PID 2252 wrote to memory of 2812	2252	llmxstrz.exe	42
PID 2252 wrote to memory of 2812	2252	llmxstrz.exe	42
PID 2252 wrote to memory of 2812	2252	llmxstrz.exe	42
PID 2252 wrote to memory of 2812	2252	llmxstrz.exe	42
PID 2460 wrote to memory of 2740	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	43
PID 2460 wrote to memory of 2740	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	43
PID 2460 wrote to memory of 2740	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	43
PID 2460 wrote to memory of 2740	2460	2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zczkkmis\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2456
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\llmxstrz.exe" C:\Windows\SysWOW64\zczkkmis\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zczkkmis binPath= "C:\Windows\SysWOW64\zczkkmis\llmxstrz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2228
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zczkkmis "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zczkkmis
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2668
- 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:2740

C:\Windows\SysWOW64\zczkkmis\llmxstrz.exe
C:\Windows\SysWOW64\zczkkmis\llmxstrz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-21_c8478f4f5d94b9ac131ff2d84e5d3909_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2252
- 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:2812

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\llmxstrz.exe

Filesize
13.4MB

MD5
af1d603e472d44e0f65648bf05474a2b

SHA1
47abd437f5c4679c26cc0d16eddee4c22328f952

SHA256
e683e4eeba6fcdb421b1a01aa5ce89cbc27fb231eb00195f6ae016de3cf913e9

SHA512
2ed35951e2dbcbf2ed0eee4d0367689dbc4725b0aa6c9458b415650480878c86fb943bca7d6b37396545ebbec1b68f31859e33b467d090e1df3995bd00de875a

Download Submit
memory/2252-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2460-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2460-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2460-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

Filesize
1024KB

Download
memory/2460-14-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2460-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2460-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2812-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2812-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2812-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2812-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2812-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads