tofsee | 20d5caddfab0711c8b6916d639892872c47afc695ec162f31fd54dcf7c8727be

Analysis

max time kernel
147s
max time network
126s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
01-02-2025 20:10

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General

Target

2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe
Size

12.2MB
MD5

4f9d37fcf1448b40a845b6d0ee2aad6e
SHA1

c7c20cc38a71fa9820a922c42f48726895ae078a
SHA256

20d5caddfab0711c8b6916d639892872c47afc695ec162f31fd54dcf7c8727be
SHA512

93093f7b2f426dc038bf9af3837302adbe50ec04d5e80ce555e08abc3c93309ae28634d1efba8ce2eb26051c0005e7bca52c00876799e53014aa8459cccf5d44
SSDEEP

3072:SLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:7OMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\obvsosph = "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
2468	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\obvsosph\ImagePath = "C:\\Windows\\SysWOW64\\obvsosph\\rmqiyjlj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2648	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2628	rmqiyjlj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2628 set thread context of 2648	2628	rmqiyjlj.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2748	sc.exe
2772	sc.exe
2200	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_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	sc.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	rmqiyjlj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 2556	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	31
PID 2280 wrote to memory of 2556	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	31
PID 2280 wrote to memory of 2556	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	31
PID 2280 wrote to memory of 2556	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	31
PID 2280 wrote to memory of 1620	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	33
PID 2280 wrote to memory of 1620	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	33
PID 2280 wrote to memory of 1620	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	33
PID 2280 wrote to memory of 1620	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	33
PID 2280 wrote to memory of 2200	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	35
PID 2280 wrote to memory of 2200	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	35
PID 2280 wrote to memory of 2200	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	35
PID 2280 wrote to memory of 2200	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	35
PID 2280 wrote to memory of 2748	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	37
PID 2280 wrote to memory of 2748	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	37
PID 2280 wrote to memory of 2748	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	37
PID 2280 wrote to memory of 2748	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	37
PID 2280 wrote to memory of 2772	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	39
PID 2280 wrote to memory of 2772	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	39
PID 2280 wrote to memory of 2772	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	39
PID 2280 wrote to memory of 2772	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	39
PID 2280 wrote to memory of 2468	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	42
PID 2280 wrote to memory of 2468	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	42
PID 2280 wrote to memory of 2468	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	42
PID 2280 wrote to memory of 2468	2280	2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe	42
PID 2628 wrote to memory of 2648	2628	rmqiyjlj.exe	44
PID 2628 wrote to memory of 2648	2628	rmqiyjlj.exe	44
PID 2628 wrote to memory of 2648	2628	rmqiyjlj.exe	44
PID 2628 wrote to memory of 2648	2628	rmqiyjlj.exe	44
PID 2628 wrote to memory of 2648	2628	rmqiyjlj.exe	44
PID 2628 wrote to memory of 2648	2628	rmqiyjlj.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\obvsosph\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2556
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rmqiyjlj.exe" C:\Windows\SysWOW64\obvsosph\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1620
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create obvsosph binPath= "C:\Windows\SysWOW64\obvsosph\rmqiyjlj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2200
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description obvsosph "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start obvsosph
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2772
- 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:2468

C:\Windows\SysWOW64\obvsosph\rmqiyjlj.exe
C:\Windows\SysWOW64\obvsosph\rmqiyjlj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_4f9d37fcf1448b40a845b6d0ee2aad6e_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2628
- 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:2648

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\rmqiyjlj.exe

Filesize
13.6MB

MD5
298ada5fdb141275c24fe080d847265b

SHA1
e1d561c9f16ddfc02ee0ad4d610a9df56ce5b52b

SHA256
a84bd7e30ec40ae97bde413ef95abef195524f8e86519f99490aae1043088811

SHA512
371f733f04cc0e94330357d30aac0844ceeececbf7894e04c8e6bac10a5f2a711ec4698cb8394fea1e775ea8875bd0b184515f361fe0a4c6f0870ac57cb78136

Download Submit
memory/2280-8-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2280-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2280-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2280-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2280-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2280-1-0x0000000000890000-0x0000000000990000-memory.dmp

Filesize
1024KB

Download
memory/2628-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2648-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2648-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2648-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2648-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2648-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads