tofsee | 9debc8fd1f6a5f6578dc309f1d21f77a907b14d0aa763e56448b1fb3070f9ffe

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
07-02-2025 08:28

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General

Target

2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe
Size

10.3MB
MD5

9f3b270d0a461fe86d593c868794751b
SHA1

f36ef7f1d36c82df8af9a45f9ce4bb49dc04073e
SHA256

9debc8fd1f6a5f6578dc309f1d21f77a907b14d0aa763e56448b1fb3070f9ffe
SHA512

3f8a1204227b28a95cdf401c1258719056d458ac5d756eb1dd32e081fdf084fabaff0b1e0cd58a48f267fa18ecd1abd94e5db11bb7348706c591f8b28328299c
SSDEEP

6144:VLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQS:mTYe+D2jFu+iZoUFhAzF

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\bomexpy = "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
2076	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\bomexpy\ImagePath = "C:\\Windows\\SysWOW64\\bomexpy\\foinfezv.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2728	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2788	foinfezv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2788 set thread context of 2728	2788	foinfezv.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2288	sc.exe
2456	sc.exe
2724	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	2025-02-07_9f3b270d0a461fe86d593c868794751b_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	foinfezv.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 1620 wrote to memory of 2148	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	30
PID 1620 wrote to memory of 2148	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	30
PID 1620 wrote to memory of 2148	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	30
PID 1620 wrote to memory of 2148	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	30
PID 1620 wrote to memory of 2408	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	32
PID 1620 wrote to memory of 2408	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	32
PID 1620 wrote to memory of 2408	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	32
PID 1620 wrote to memory of 2408	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	32
PID 1620 wrote to memory of 2288	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	34
PID 1620 wrote to memory of 2288	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	34
PID 1620 wrote to memory of 2288	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	34
PID 1620 wrote to memory of 2288	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	34
PID 1620 wrote to memory of 2456	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	36
PID 1620 wrote to memory of 2456	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	36
PID 1620 wrote to memory of 2456	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	36
PID 1620 wrote to memory of 2456	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	36
PID 1620 wrote to memory of 2724	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	38
PID 1620 wrote to memory of 2724	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	38
PID 1620 wrote to memory of 2724	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	38
PID 1620 wrote to memory of 2724	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	38
PID 2788 wrote to memory of 2728	2788	foinfezv.exe	41
PID 2788 wrote to memory of 2728	2788	foinfezv.exe	41
PID 2788 wrote to memory of 2728	2788	foinfezv.exe	41
PID 2788 wrote to memory of 2728	2788	foinfezv.exe	41
PID 2788 wrote to memory of 2728	2788	foinfezv.exe	41
PID 2788 wrote to memory of 2728	2788	foinfezv.exe	41
PID 1620 wrote to memory of 2076	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	42
PID 1620 wrote to memory of 2076	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	42
PID 1620 wrote to memory of 2076	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	42
PID 1620 wrote to memory of 2076	1620	2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1620
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bomexpy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2148
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\foinfezv.exe" C:\Windows\SysWOW64\bomexpy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2408
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bomexpy binPath= "C:\Windows\SysWOW64\bomexpy\foinfezv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2288
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bomexpy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2456
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bomexpy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2724
- 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:2076

C:\Windows\SysWOW64\bomexpy\foinfezv.exe
C:\Windows\SysWOW64\bomexpy\foinfezv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2788
- 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:2728

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\foinfezv.exe

Filesize
14.1MB

MD5
efa15c1c6d7ba7229a6685ee4ea2ed85

SHA1
1558e532e7ad94f98dd63cd4c3f270b226d9721b

SHA256
f9be4622c33ca604c4d9a9f35ab382784464a48d4cef2275764e450ee319f4d4

SHA512
76a7cdabd650a3d4e5ae510e741e0336878a4628aaba12ea1c6b036ad89e2cfa1b2d9658b63803a9354832585dcd63ab5bbc0e9b44f1e1ec04d8f973915b1aea

Download Submit
memory/1620-14-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1620-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1620-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1620-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1620-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/1620-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2728-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2728-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2728-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2728-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2728-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2788-13-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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