tofsee | 4363360eba9bacce9d9e19e369cc7c8e872dae2289150471823514c137342f07

Analysis

max time kernel
144s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-01-2025 14:02

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General

Target

2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe
Size

11.5MB
MD5

22e3c237d361b3e4fa05ebbd045f0c12
SHA1

74501e3cd15f8a34d1ebe61d2343bce6c85ddf87
SHA256

4363360eba9bacce9d9e19e369cc7c8e872dae2289150471823514c137342f07
SHA512

aca3ae1830be51e36a02b6438765eb141ad3148176f0fce91cb3f31d45082d60db1bcd40118bfced670d0e605857c6d98626e76d64d8051e756c36077244a314
SSDEEP

6144:jLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQu:YTYe+D2jFu+iZoUFhAz7

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\bgsmcquu = "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
2736	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\bgsmcquu\ImagePath = "C:\\Windows\\SysWOW64\\bgsmcquu\\sbvasrmi.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2892	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3024	sbvasrmi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3024 set thread context of 2892	3024	sbvasrmi.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2240	sc.exe
1936	sc.exe
2832	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	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	sbvasrmi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1800 wrote to memory of 2416	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	30
PID 1800 wrote to memory of 2416	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	30
PID 1800 wrote to memory of 2416	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	30
PID 1800 wrote to memory of 2416	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	30
PID 1800 wrote to memory of 1968	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	32
PID 1800 wrote to memory of 1968	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	32
PID 1800 wrote to memory of 1968	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	32
PID 1800 wrote to memory of 1968	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	32
PID 1800 wrote to memory of 2240	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	34
PID 1800 wrote to memory of 2240	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	34
PID 1800 wrote to memory of 2240	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	34
PID 1800 wrote to memory of 2240	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	34
PID 1800 wrote to memory of 1936	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	36
PID 1800 wrote to memory of 1936	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	36
PID 1800 wrote to memory of 1936	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	36
PID 1800 wrote to memory of 1936	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	36
PID 1800 wrote to memory of 2832	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	38
PID 1800 wrote to memory of 2832	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	38
PID 1800 wrote to memory of 2832	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	38
PID 1800 wrote to memory of 2832	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	38
PID 1800 wrote to memory of 2736	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	41
PID 1800 wrote to memory of 2736	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	41
PID 1800 wrote to memory of 2736	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	41
PID 1800 wrote to memory of 2736	1800	2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe	41
PID 3024 wrote to memory of 2892	3024	sbvasrmi.exe	43
PID 3024 wrote to memory of 2892	3024	sbvasrmi.exe	43
PID 3024 wrote to memory of 2892	3024	sbvasrmi.exe	43
PID 3024 wrote to memory of 2892	3024	sbvasrmi.exe	43
PID 3024 wrote to memory of 2892	3024	sbvasrmi.exe	43
PID 3024 wrote to memory of 2892	3024	sbvasrmi.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1800
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bgsmcquu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2416
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sbvasrmi.exe" C:\Windows\SysWOW64\bgsmcquu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1968
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bgsmcquu binPath= "C:\Windows\SysWOW64\bgsmcquu\sbvasrmi.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2240
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bgsmcquu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1936
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bgsmcquu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2832
- 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:2736

C:\Windows\SysWOW64\bgsmcquu\sbvasrmi.exe
C:\Windows\SysWOW64\bgsmcquu\sbvasrmi.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-28_22e3c237d361b3e4fa05ebbd045f0c12_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3024
- 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:2892

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\sbvasrmi.exe

Filesize
13.2MB

MD5
4b700ce6c55fc1f0674687b0dfc35c57

SHA1
22e994657adbf0668ba06d8b5901be8862be8829

SHA256
227d01b0298b5934d9cb247c99b087bb785ee75749520c6a95f4ad1dbc0baf7f

SHA512
b90e5fac1ce875f7f81764dd381e7f846d2420c8bd249ef316f52d8b6ab91c3b618460529279e99569f9264ca3299ff69925ad9497440719b0065581461212d2

Download Submit
memory/1800-3-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1800-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1800-1-0x0000000000910000-0x0000000000A10000-memory.dmp

Filesize
1024KB

Download
memory/1800-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1800-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2892-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2892-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2892-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2892-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2892-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3024-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads