tofsee | c0b7e00532c41afb64dd5254952b61511a945eb5d0ed492352919bc41397f4f5

Analysis

max time kernel
144s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-01-2025 17:33

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe
Size

11.4MB
MD5

6c5e452df29b5a756d22f22a8250e379
SHA1

2220bf75ba0c6eb8a2ae4740c8b63bdd04a2d8b8
SHA256

c0b7e00532c41afb64dd5254952b61511a945eb5d0ed492352919bc41397f4f5
SHA512

c563d976efa75b53187b2649bc3166f756b4d383cc5364c25e7b86a5d643879f7089c0eddb46bed2085f668c335f1c076646455337cb357aea534ffdf292977d
SSDEEP

3072:ZLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:cOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\rrxhiosh = "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
880	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\rrxhiosh\ImagePath = "C:\\Windows\\SysWOW64\\rrxhiosh\\ofnlvqxl.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2136	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2588	ofnlvqxl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2588 set thread context of 2136	2588	ofnlvqxl.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2524	sc.exe
2608	sc.exe
2920	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-29_6c5e452df29b5a756d22f22a8250e379_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	ofnlvqxl.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	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2764 wrote to memory of 2848	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	30
PID 2764 wrote to memory of 2848	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	30
PID 2764 wrote to memory of 2848	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	30
PID 2764 wrote to memory of 2848	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	30
PID 2764 wrote to memory of 2744	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	32
PID 2764 wrote to memory of 2744	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	32
PID 2764 wrote to memory of 2744	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	32
PID 2764 wrote to memory of 2744	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	32
PID 2764 wrote to memory of 2920	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	34
PID 2764 wrote to memory of 2920	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	34
PID 2764 wrote to memory of 2920	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	34
PID 2764 wrote to memory of 2920	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	34
PID 2764 wrote to memory of 2524	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	36
PID 2764 wrote to memory of 2524	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	36
PID 2764 wrote to memory of 2524	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	36
PID 2764 wrote to memory of 2524	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	36
PID 2764 wrote to memory of 2608	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	38
PID 2764 wrote to memory of 2608	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	38
PID 2764 wrote to memory of 2608	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	38
PID 2764 wrote to memory of 2608	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	38
PID 2588 wrote to memory of 2136	2588	ofnlvqxl.exe	41
PID 2588 wrote to memory of 2136	2588	ofnlvqxl.exe	41
PID 2588 wrote to memory of 2136	2588	ofnlvqxl.exe	41
PID 2588 wrote to memory of 2136	2588	ofnlvqxl.exe	41
PID 2588 wrote to memory of 2136	2588	ofnlvqxl.exe	41
PID 2588 wrote to memory of 2136	2588	ofnlvqxl.exe	41
PID 2764 wrote to memory of 880	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	42
PID 2764 wrote to memory of 880	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	42
PID 2764 wrote to memory of 880	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	42
PID 2764 wrote to memory of 880	2764	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2764
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rrxhiosh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2848
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ofnlvqxl.exe" C:\Windows\SysWOW64\rrxhiosh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rrxhiosh binPath= "C:\Windows\SysWOW64\rrxhiosh\ofnlvqxl.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2920
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rrxhiosh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2524
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rrxhiosh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2608
- 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:880

C:\Windows\SysWOW64\rrxhiosh\ofnlvqxl.exe
C:\Windows\SysWOW64\rrxhiosh\ofnlvqxl.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2588
- 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:2136

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\ofnlvqxl.exe

Filesize
10.5MB

MD5
dd7dda7bda21cfdba068948faf08c38b

SHA1
db457657c8eab242dd86b48a34ed33848ce84cac

SHA256
93aed9aff471bb85d7686a6cbc4af9ec0bd5be16f593584aeec85c93f98a34d7

SHA512
77b3854b426168ea87bc0c0c87ad5db5d1b9982bd406b580d9c40270697bcbf701ddeb98f267bd2a0ec3815d819ec88aa3708d6e136a38e20372c1d40cdb8720

Download Submit
memory/2136-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2136-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2136-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2136-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2136-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2588-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2764-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2764-1-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/2764-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2764-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2764-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2764-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads