tofsee | db9bda7c977f649da2c0c5b871f7a459a84f3f56cfdbf422f5c8185f05a31895

Analysis

max time kernel
141s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-01-2025 17:25

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General

Target

2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe
Size

14.5MB
MD5

7e1d94086970fff96cad7928e9b18a8a
SHA1

af71636d08b7d1036ad238cdae3fe4df2232a063
SHA256

db9bda7c977f649da2c0c5b871f7a459a84f3f56cfdbf422f5c8185f05a31895
SHA512

2f0029a26f9cbeb79b96d2ece5f73ed6308c8c40aa0f08346ad71af5b59b676a84a3ee6043188d832c1f2c65e1b8e256ee3566cd44085856c1f382d7048f0477
SSDEEP

24576:6EfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZb:Tfott

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\hsbfjbod = "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
2672	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\hsbfjbod\ImagePath = "C:\\Windows\\SysWOW64\\hsbfjbod\\vxsyreo.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2720	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2856	vxsyreo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2856 set thread context of 2720	2856	vxsyreo.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2196	sc.exe
2928	sc.exe
2632	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	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vxsyreo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2700 wrote to memory of 2872	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	30
PID 2700 wrote to memory of 2872	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	30
PID 2700 wrote to memory of 2872	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	30
PID 2700 wrote to memory of 2872	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	30
PID 2700 wrote to memory of 2896	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	32
PID 2700 wrote to memory of 2896	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	32
PID 2700 wrote to memory of 2896	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	32
PID 2700 wrote to memory of 2896	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	32
PID 2700 wrote to memory of 2196	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	34
PID 2700 wrote to memory of 2196	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	34
PID 2700 wrote to memory of 2196	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	34
PID 2700 wrote to memory of 2196	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	34
PID 2700 wrote to memory of 2928	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	36
PID 2700 wrote to memory of 2928	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	36
PID 2700 wrote to memory of 2928	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	36
PID 2700 wrote to memory of 2928	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	36
PID 2700 wrote to memory of 2632	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	38
PID 2700 wrote to memory of 2632	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	38
PID 2700 wrote to memory of 2632	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	38
PID 2700 wrote to memory of 2632	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	38
PID 2856 wrote to memory of 2720	2856	vxsyreo.exe	41
PID 2856 wrote to memory of 2720	2856	vxsyreo.exe	41
PID 2856 wrote to memory of 2720	2856	vxsyreo.exe	41
PID 2856 wrote to memory of 2720	2856	vxsyreo.exe	41
PID 2856 wrote to memory of 2720	2856	vxsyreo.exe	41
PID 2856 wrote to memory of 2720	2856	vxsyreo.exe	41
PID 2700 wrote to memory of 2672	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	42
PID 2700 wrote to memory of 2672	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	42
PID 2700 wrote to memory of 2672	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	42
PID 2700 wrote to memory of 2672	2700	2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2700
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hsbfjbod\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2872
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vxsyreo.exe" C:\Windows\SysWOW64\hsbfjbod\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2896
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hsbfjbod binPath= "C:\Windows\SysWOW64\hsbfjbod\vxsyreo.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2196
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hsbfjbod "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2928
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hsbfjbod
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2632
- 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:2672

C:\Windows\SysWOW64\hsbfjbod\vxsyreo.exe
C:\Windows\SysWOW64\hsbfjbod\vxsyreo.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_7e1d94086970fff96cad7928e9b18a8a_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2856
- 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:2720

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\vxsyreo.exe

Filesize
11.0MB

MD5
9a3fdfef5fd94bd9e28a8f8977248d2b

SHA1
0043ffcf0f937627490a9d0c8e4ac501ac626d34

SHA256
89bc1af4a49caa80239dbbe0a04e668d607cdb2fa540853e89eaeeb56d6b473b

SHA512
f73efa83f13ab2caccbf51a92c85e50a1ff82c0d5e873d2313d9306fb93161d6522380c42f925d7f6395fa76446237c6ba17f377cac68f262c41d6f119bfbc07

Download Submit
memory/2700-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2700-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2700-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2700-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2700-1-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download
memory/2700-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2720-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2720-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2720-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2720-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2720-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2856-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads