tofsee | 994e81fb5f54eb9e52df8df253dcdccc72d1392cedf8df90326ab0779df19524

Analysis

max time kernel
144s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-01-2025 16:27

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General

Target

2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe
Size

11.0MB
MD5

691538f9228fb8bdff33d93f22b3d9ad
SHA1

9567d6d79cfea0b287f7081c0676f82ddb7971d9
SHA256

994e81fb5f54eb9e52df8df253dcdccc72d1392cedf8df90326ab0779df19524
SHA512

6cecc83c562a06af8b77aa838f1a913c462737bcf4601e4def3c7e3bf1e8dacd5b46a89e3ee9ede7f49fd273b9fadebb8da248360426bd6cbbff555e85571084
SSDEEP

24576:86WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQv:RWdLQkt

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\pdxltbil = "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\pdxltbil\ImagePath = "C:\\Windows\\SysWOW64\\pdxltbil\\zbufmuiy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2092	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2596	zbufmuiy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2596 set thread context of 2092	2596	zbufmuiy.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2708	sc.exe
2748	sc.exe
2900	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zbufmuiy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2696	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	31
PID 2688 wrote to memory of 2696	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	31
PID 2688 wrote to memory of 2696	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	31
PID 2688 wrote to memory of 2696	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	31
PID 2688 wrote to memory of 2652	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	33
PID 2688 wrote to memory of 2652	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	33
PID 2688 wrote to memory of 2652	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	33
PID 2688 wrote to memory of 2652	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	33
PID 2688 wrote to memory of 2748	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	35
PID 2688 wrote to memory of 2748	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	35
PID 2688 wrote to memory of 2748	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	35
PID 2688 wrote to memory of 2748	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	35
PID 2688 wrote to memory of 2900	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	37
PID 2688 wrote to memory of 2900	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	37
PID 2688 wrote to memory of 2900	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	37
PID 2688 wrote to memory of 2900	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	37
PID 2688 wrote to memory of 2708	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	39
PID 2688 wrote to memory of 2708	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	39
PID 2688 wrote to memory of 2708	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	39
PID 2688 wrote to memory of 2708	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	39
PID 2688 wrote to memory of 2544	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	42
PID 2688 wrote to memory of 2544	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	42
PID 2688 wrote to memory of 2544	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	42
PID 2688 wrote to memory of 2544	2688	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	42
PID 2596 wrote to memory of 2092	2596	zbufmuiy.exe	44
PID 2596 wrote to memory of 2092	2596	zbufmuiy.exe	44
PID 2596 wrote to memory of 2092	2596	zbufmuiy.exe	44
PID 2596 wrote to memory of 2092	2596	zbufmuiy.exe	44
PID 2596 wrote to memory of 2092	2596	zbufmuiy.exe	44
PID 2596 wrote to memory of 2092	2596	zbufmuiy.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pdxltbil\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2696
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zbufmuiy.exe" C:\Windows\SysWOW64\pdxltbil\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2652
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pdxltbil binPath= "C:\Windows\SysWOW64\pdxltbil\zbufmuiy.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pdxltbil "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2900
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pdxltbil
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2708
- 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\pdxltbil\zbufmuiy.exe
C:\Windows\SysWOW64\pdxltbil\zbufmuiy.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2596
- 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:2092

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\zbufmuiy.exe

Filesize
15.0MB

MD5
da13ba9633c3071cdf75366bc6bbc13b

SHA1
674609067cd9fa43a850d2ab52ee515103c2c40d

SHA256
f90fa0eada1efccd961f86bc843e0ee86396091b953268fb83278e0d1b936ffa

SHA512
59f2fffe090908a1322fb18498c5afb19683169c82e91d1a5ae650070d44c086ca687973693df4764807ada320a2087ca5d013a9ce18e9bab8934dfc2811046f

Download Submit
memory/2092-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2092-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2092-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2092-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2092-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2596-17-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2688-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2688-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2688-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2688-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2688-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2688-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads