tofsee | eae749dc9f2c8db978c02519580c11f054a9488ca1e0670264426456d39c2f0c

Analysis

max time kernel
145s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
30-01-2025 20:26

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General

Target

2025-01-30_698be4176839635901979195d952680b_mafia.exe
Size

11.1MB
MD5

698be4176839635901979195d952680b
SHA1

bf18881e6d848bfb4a69c650d543c2f4fc6eb6c7
SHA256

eae749dc9f2c8db978c02519580c11f054a9488ca1e0670264426456d39c2f0c
SHA512

a3aa5959e5aad9b9ace273bf6ecc048133ab02cc24b3d2f5db64ffa5f7dbe2f50a4bb5fdc5d8b271623cd33a219d831feb1faa15cb7bbee4471f32767c43e2ac
SSDEEP

24576:UEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZl:xfot

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\mrhuosil = "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
376	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\mrhuosil\ImagePath = "C:\\Windows\\SysWOW64\\mrhuosil\\iqfjwudd.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2620	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2632	iqfjwudd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2632 set thread context of 2620	2632	iqfjwudd.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2872	sc.exe
2812	sc.exe
2776	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	2025-01-30_698be4176839635901979195d952680b_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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iqfjwudd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 2820	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	30
PID 2312 wrote to memory of 2820	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	30
PID 2312 wrote to memory of 2820	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	30
PID 2312 wrote to memory of 2820	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	30
PID 2312 wrote to memory of 2724	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	32
PID 2312 wrote to memory of 2724	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	32
PID 2312 wrote to memory of 2724	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	32
PID 2312 wrote to memory of 2724	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	32
PID 2312 wrote to memory of 2776	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	34
PID 2312 wrote to memory of 2776	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	34
PID 2312 wrote to memory of 2776	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	34
PID 2312 wrote to memory of 2776	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	34
PID 2312 wrote to memory of 2872	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	36
PID 2312 wrote to memory of 2872	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	36
PID 2312 wrote to memory of 2872	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	36
PID 2312 wrote to memory of 2872	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	36
PID 2312 wrote to memory of 2812	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	38
PID 2312 wrote to memory of 2812	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	38
PID 2312 wrote to memory of 2812	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	38
PID 2312 wrote to memory of 2812	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	38
PID 2632 wrote to memory of 2620	2632	iqfjwudd.exe	41
PID 2632 wrote to memory of 2620	2632	iqfjwudd.exe	41
PID 2632 wrote to memory of 2620	2632	iqfjwudd.exe	41
PID 2632 wrote to memory of 2620	2632	iqfjwudd.exe	41
PID 2632 wrote to memory of 2620	2632	iqfjwudd.exe	41
PID 2632 wrote to memory of 2620	2632	iqfjwudd.exe	41
PID 2312 wrote to memory of 376	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	42
PID 2312 wrote to memory of 376	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	42
PID 2312 wrote to memory of 376	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	42
PID 2312 wrote to memory of 376	2312	2025-01-30_698be4176839635901979195d952680b_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-30_698be4176839635901979195d952680b_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-30_698be4176839635901979195d952680b_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mrhuosil\
  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\iqfjwudd.exe" C:\Windows\SysWOW64\mrhuosil\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2724
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mrhuosil binPath= "C:\Windows\SysWOW64\mrhuosil\iqfjwudd.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-30_698be4176839635901979195d952680b_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mrhuosil "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mrhuosil
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- 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:376

C:\Windows\SysWOW64\mrhuosil\iqfjwudd.exe
C:\Windows\SysWOW64\mrhuosil\iqfjwudd.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-30_698be4176839635901979195d952680b_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2632
- 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:2620

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\iqfjwudd.exe

Filesize
13.8MB

MD5
c61208a4d7c924245faaeb9553ca0fa3

SHA1
9531f8885ffdc26cda216ae2c158fb3e4b7c603f

SHA256
b5f5d18045e3fc36027e0922a7ba1b6744aea2bc27b3ee735db2093f022bac81

SHA512
e061f21fd4c2b0af9e8b3ab36d5db7327523663114363925fc8058c943510fb1329a6ff5ab662083459e5722b053e669922d16cf2d02bc29acc9c5fdc2eefd1b

Download Submit
memory/2312-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2312-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2312-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2312-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2312-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/2312-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2620-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2620-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2620-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2620-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2620-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2632-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads