tofsee | a7b69c17aceb7d0e23f45da66d6947e49543fcb0faad432bb6a45a7ea2593376

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-01-2025 20:46

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe
Size

12.8MB
MD5

8c2f86285f5b31faeea42683220f6be9
SHA1

720d579154ba157c6c43f1a03204c2eedb4414e0
SHA256

a7b69c17aceb7d0e23f45da66d6947e49543fcb0faad432bb6a45a7ea2593376
SHA512

45f317d7ebbcfe7b1b05f16d8476a17988d14ab805a8a39fbc635ff5a5bed8cc3a4f827f82876ad030b955b3d18997501d5d2fe011ade9cf03b78ec1cf7b295e
SSDEEP

24576:PEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZM:Mfote

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\efobtkv = "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
2572	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\efobtkv\ImagePath = "C:\\Windows\\SysWOW64\\efobtkv\\veydvupl.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2988	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2700	veydvupl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2700 set thread context of 2988	2700	veydvupl.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2008	sc.exe
2648	sc.exe
2820	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	veydvupl.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	cmd.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	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 644	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	31
PID 2324 wrote to memory of 644	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	31
PID 2324 wrote to memory of 644	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	31
PID 2324 wrote to memory of 644	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	31
PID 2324 wrote to memory of 1752	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	33
PID 2324 wrote to memory of 1752	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	33
PID 2324 wrote to memory of 1752	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	33
PID 2324 wrote to memory of 1752	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	33
PID 2324 wrote to memory of 2008	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	35
PID 2324 wrote to memory of 2008	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	35
PID 2324 wrote to memory of 2008	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	35
PID 2324 wrote to memory of 2008	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	35
PID 2324 wrote to memory of 2648	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	37
PID 2324 wrote to memory of 2648	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	37
PID 2324 wrote to memory of 2648	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	37
PID 2324 wrote to memory of 2648	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	37
PID 2324 wrote to memory of 2820	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	39
PID 2324 wrote to memory of 2820	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	39
PID 2324 wrote to memory of 2820	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	39
PID 2324 wrote to memory of 2820	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	39
PID 2700 wrote to memory of 2988	2700	veydvupl.exe	42
PID 2700 wrote to memory of 2988	2700	veydvupl.exe	42
PID 2700 wrote to memory of 2988	2700	veydvupl.exe	42
PID 2700 wrote to memory of 2988	2700	veydvupl.exe	42
PID 2700 wrote to memory of 2988	2700	veydvupl.exe	42
PID 2700 wrote to memory of 2988	2700	veydvupl.exe	42
PID 2324 wrote to memory of 2572	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	43
PID 2324 wrote to memory of 2572	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	43
PID 2324 wrote to memory of 2572	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	43
PID 2324 wrote to memory of 2572	2324	2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\efobtkv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:644
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\veydvupl.exe" C:\Windows\SysWOW64\efobtkv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create efobtkv binPath= "C:\Windows\SysWOW64\efobtkv\veydvupl.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2008
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description efobtkv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2648
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start efobtkv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2820
- 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:2572

C:\Windows\SysWOW64\efobtkv\veydvupl.exe
C:\Windows\SysWOW64\efobtkv\veydvupl.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-30_8c2f86285f5b31faeea42683220f6be9_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2700
- 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:2988

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\veydvupl.exe

Filesize
12.1MB

MD5
c56e610b43d2ac76ad7dc92cd7e03569

SHA1
10a16546d945bef65213f13862d795681736d3b4

SHA256
f08b557d3233ff20b89f3ad91b1ea99bba0847df5964b87bd2735216b1236aa3

SHA512
01977a1a9a25dffd1ca122dd984182faf5dde8ac4a79b14bf9d6ef13046f6154e52d0d7b8ce058675be3e5d4d62235f6fef7ce9ea5e6c5dfc3656e3a96a0950d

Download Submit
memory/2324-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2324-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2324-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2324-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2324-1-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/2324-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2700-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2988-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2988-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2988-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2988-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2988-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads