tofsee | 8ca0c45c5ad2a3699ddfd096c361372a5a8a76ccb1303c51ba6dd03f21541fde

Analysis

max time kernel
147s
max time network
122s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22-01-2025 19:08

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe
Size

11.5MB
MD5

49340c3d7ab1f049b2399e5733052382
SHA1

6ebbae3f19bc5219e9f534f90b45acd05cd34715
SHA256

8ca0c45c5ad2a3699ddfd096c361372a5a8a76ccb1303c51ba6dd03f21541fde
SHA512

1b192462ce35161b2285123c1c9177ac16e5b967f53dd90d750d8ba2f287f0b2555355a4f9fa6ff5cc570bb6a57db7116175886ecab426a59fec27d1fadc3baf
SSDEEP

24576:t6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQn:cWdLQk

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\siyyjilj = "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
2772	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\siyyjilj\ImagePath = "C:\\Windows\\SysWOW64\\siyyjilj\\izhfpkrf.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2768	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2168	izhfpkrf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2168 set thread context of 2768	2168	izhfpkrf.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2944	sc.exe
2372	sc.exe
2324	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	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.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	izhfpkrf.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2248 wrote to memory of 2960	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	30
PID 2248 wrote to memory of 2960	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	30
PID 2248 wrote to memory of 2960	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	30
PID 2248 wrote to memory of 2960	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	30
PID 2248 wrote to memory of 2952	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	32
PID 2248 wrote to memory of 2952	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	32
PID 2248 wrote to memory of 2952	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	32
PID 2248 wrote to memory of 2952	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	32
PID 2248 wrote to memory of 2324	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	34
PID 2248 wrote to memory of 2324	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	34
PID 2248 wrote to memory of 2324	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	34
PID 2248 wrote to memory of 2324	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	34
PID 2248 wrote to memory of 2944	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	36
PID 2248 wrote to memory of 2944	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	36
PID 2248 wrote to memory of 2944	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	36
PID 2248 wrote to memory of 2944	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	36
PID 2248 wrote to memory of 2372	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	38
PID 2248 wrote to memory of 2372	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	38
PID 2248 wrote to memory of 2372	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	38
PID 2248 wrote to memory of 2372	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	38
PID 2248 wrote to memory of 2772	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	41
PID 2248 wrote to memory of 2772	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	41
PID 2248 wrote to memory of 2772	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	41
PID 2248 wrote to memory of 2772	2248	2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe	41
PID 2168 wrote to memory of 2768	2168	izhfpkrf.exe	43
PID 2168 wrote to memory of 2768	2168	izhfpkrf.exe	43
PID 2168 wrote to memory of 2768	2168	izhfpkrf.exe	43
PID 2168 wrote to memory of 2768	2168	izhfpkrf.exe	43
PID 2168 wrote to memory of 2768	2168	izhfpkrf.exe	43
PID 2168 wrote to memory of 2768	2168	izhfpkrf.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2248
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\siyyjilj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2960
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\izhfpkrf.exe" C:\Windows\SysWOW64\siyyjilj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2952
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create siyyjilj binPath= "C:\Windows\SysWOW64\siyyjilj\izhfpkrf.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2324
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description siyyjilj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2944
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start siyyjilj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2372
- 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:2772

C:\Windows\SysWOW64\siyyjilj\izhfpkrf.exe
C:\Windows\SysWOW64\siyyjilj\izhfpkrf.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-22_49340c3d7ab1f049b2399e5733052382_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2168
- 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:2768

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\izhfpkrf.exe

Filesize
10.9MB

MD5
e6b5c3429d8199cb06861a8c095c8123

SHA1
2abfbc347b0a41bc284813ba6f6bbea462d27812

SHA256
e245c054cd34f7032350325aba1b4345367edb9f18be33c9231bcdb60fd47e19

SHA512
a10a895cddca47ee6f9037ad5c059777a4f8466f5843cbf22a6b93a09dc6acf4d52d0208df7c481fdd9855a2f8b689a5b116e9192af8b4fc0d959538c83ceb45

Download Submit
memory/2168-15-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2248-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2248-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2248-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2248-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2248-1-0x00000000004E0000-0x00000000005E0000-memory.dmp

Filesize
1024KB

Download
memory/2248-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2768-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2768-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2768-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2768-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2768-18-0x0000000000080000-0x0000000000095000-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