tofsee | 0fa336e93cc488f32dac6dbd9e88daf8a41af8974f76ca5eb338e7fc6dcd10ac

Analysis

max time kernel
144s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-01-2025 23:46

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe
Size

10.7MB
MD5

19a4ef3a1aa50b13ea871c539ad51796
SHA1

1c961f279f018478b8640cffdd6e0b071600b25f
SHA256

0fa336e93cc488f32dac6dbd9e88daf8a41af8974f76ca5eb338e7fc6dcd10ac
SHA512

4678055e5a44bd088dd56e7e9592b13db112624c881902bb88be7cee3d2ea0e29ef2468cdef34fdce6fd392d57da08308d333e63da8475e7daa1b658194a10ac
SSDEEP

49152:YqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPc:YqtYc3l

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\arzvmriy = "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
2908	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\arzvmriy\ImagePath = "C:\\Windows\\SysWOW64\\arzvmriy\\evdblgnb.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2724	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2868	evdblgnb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2868 set thread context of 2724	2868	evdblgnb.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2684	sc.exe
2720	sc.exe
3004	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	evdblgnb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 2236	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	30
PID 3060 wrote to memory of 2236	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	30
PID 3060 wrote to memory of 2236	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	30
PID 3060 wrote to memory of 2236	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	30
PID 3060 wrote to memory of 1900	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	32
PID 3060 wrote to memory of 1900	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	32
PID 3060 wrote to memory of 1900	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	32
PID 3060 wrote to memory of 1900	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	32
PID 3060 wrote to memory of 3004	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	34
PID 3060 wrote to memory of 3004	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	34
PID 3060 wrote to memory of 3004	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	34
PID 3060 wrote to memory of 3004	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	34
PID 3060 wrote to memory of 2684	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	36
PID 3060 wrote to memory of 2684	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	36
PID 3060 wrote to memory of 2684	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	36
PID 3060 wrote to memory of 2684	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	36
PID 3060 wrote to memory of 2720	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	38
PID 3060 wrote to memory of 2720	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	38
PID 3060 wrote to memory of 2720	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	38
PID 3060 wrote to memory of 2720	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	38
PID 3060 wrote to memory of 2908	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	41
PID 3060 wrote to memory of 2908	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	41
PID 3060 wrote to memory of 2908	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	41
PID 3060 wrote to memory of 2908	3060	2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe	41
PID 2868 wrote to memory of 2724	2868	evdblgnb.exe	43
PID 2868 wrote to memory of 2724	2868	evdblgnb.exe	43
PID 2868 wrote to memory of 2724	2868	evdblgnb.exe	43
PID 2868 wrote to memory of 2724	2868	evdblgnb.exe	43
PID 2868 wrote to memory of 2724	2868	evdblgnb.exe	43
PID 2868 wrote to memory of 2724	2868	evdblgnb.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\arzvmriy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2236
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\evdblgnb.exe" C:\Windows\SysWOW64\arzvmriy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1900
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create arzvmriy binPath= "C:\Windows\SysWOW64\arzvmriy\evdblgnb.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3004
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description arzvmriy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2684
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start arzvmriy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2720
- 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:2908

C:\Windows\SysWOW64\arzvmriy\evdblgnb.exe
C:\Windows\SysWOW64\arzvmriy\evdblgnb.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_19a4ef3a1aa50b13ea871c539ad51796_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2868
- 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:2724

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\evdblgnb.exe

Filesize
10.0MB

MD5
7651991ff9b01dc65f6dcfdd6ccda4cd

SHA1
479128807055e95f30f6c9c21acd93ab9d5e2c13

SHA256
8fb89ae3a5ae9ca0b35fc37b52603cb8a229e99152f90b573823336e5c1c704d

SHA512
276a8017f81f5c36972c1edfea6916ec0edd597deb4c144c612d6a74b81ded049ad882d92b3ecf6e029665a77442ad6f245585e527a084754f11cf173ecdf4b3

Download Submit
memory/2724-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2724-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2724-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2724-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2724-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2868-17-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/3060-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3060-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/3060-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/3060-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3060-1-0x0000000002F00000-0x0000000003000000-memory.dmp

Filesize
1024KB

Download
memory/3060-7-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads