tofsee | c9ddeb670cecb378ac5539460db36b23b32f8f4c416d55372bf3acf10badfde2

Analysis

max time kernel
146s
max time network
125s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13/01/2025, 19:47

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General

Target

2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe
Size

11.2MB
MD5

bb831c7f52de206d92781189a192b098
SHA1

024df9bd47f11c0159fb01fa01f7c92552734462
SHA256

c9ddeb670cecb378ac5539460db36b23b32f8f4c416d55372bf3acf10badfde2
SHA512

1962522edcabfd2c0595de017e131d2a6da3ee9fe238dc70636a614a56388255bede9377fef05447789411df14282d4fe9ffd4d5223dabd3928fa1ebbf2e31a0
SSDEEP

24576:l6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQv:kWdLQk

Score

10^/10

tofsee discovery evasion 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

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\hlrzqlaa = "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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2924	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\hlrzqlaa\ImagePath = "C:\\Windows\\SysWOW64\\hlrzqlaa\\vqumcnpn.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2356	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2744	vqumcnpn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2744 set thread context of 2356	2744	vqumcnpn.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2860	sc.exe
2328	sc.exe
2740	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-13_bb831c7f52de206d92781189a192b098_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	vqumcnpn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 3024	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	30
PID 2380 wrote to memory of 3024	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	30
PID 2380 wrote to memory of 3024	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	30
PID 2380 wrote to memory of 3024	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	30
PID 2380 wrote to memory of 1000	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	32
PID 2380 wrote to memory of 1000	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	32
PID 2380 wrote to memory of 1000	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	32
PID 2380 wrote to memory of 1000	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	32
PID 2380 wrote to memory of 2328	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	34
PID 2380 wrote to memory of 2328	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	34
PID 2380 wrote to memory of 2328	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	34
PID 2380 wrote to memory of 2328	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	34
PID 2380 wrote to memory of 2740	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	37
PID 2380 wrote to memory of 2740	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	37
PID 2380 wrote to memory of 2740	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	37
PID 2380 wrote to memory of 2740	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	37
PID 2380 wrote to memory of 2860	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	39
PID 2380 wrote to memory of 2860	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	39
PID 2380 wrote to memory of 2860	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	39
PID 2380 wrote to memory of 2860	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	39
PID 2744 wrote to memory of 2356	2744	vqumcnpn.exe	42
PID 2744 wrote to memory of 2356	2744	vqumcnpn.exe	42
PID 2744 wrote to memory of 2356	2744	vqumcnpn.exe	42
PID 2744 wrote to memory of 2356	2744	vqumcnpn.exe	42
PID 2744 wrote to memory of 2356	2744	vqumcnpn.exe	42
PID 2744 wrote to memory of 2356	2744	vqumcnpn.exe	42
PID 2380 wrote to memory of 2924	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	43
PID 2380 wrote to memory of 2924	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	43
PID 2380 wrote to memory of 2924	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	43
PID 2380 wrote to memory of 2924	2380	2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hlrzqlaa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3024
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vqumcnpn.exe" C:\Windows\SysWOW64\hlrzqlaa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1000
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hlrzqlaa binPath= "C:\Windows\SysWOW64\hlrzqlaa\vqumcnpn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2328
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hlrzqlaa "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2740
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hlrzqlaa
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2860
- 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:2924

C:\Windows\SysWOW64\hlrzqlaa\vqumcnpn.exe
C:\Windows\SysWOW64\hlrzqlaa\vqumcnpn.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-13_bb831c7f52de206d92781189a192b098_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2744
- 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:2356

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\vqumcnpn.exe

Filesize
11.5MB

MD5
b6fd5d7fef5fb172e07177483d77ede1

SHA1
85e4df7f32079fb535c2553c0019ab9f22d4f0f1

SHA256
2932da11af9b83ca76e59782c0932caf83fd8db2c74653e7d7f607c87ebc1398

SHA512
f5484cd4b07d7170072fd85fd34c42c3a55af1d4f4a985a604450fe69adc01b9d49007cee81636e870479655f41bbdaca91fa5cd42da38b3f3bcc15dfad10bd1

Download Submit
memory/2356-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2356-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2356-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2356-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2356-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2380-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2380-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2380-1-0x0000000000580000-0x0000000000680000-memory.dmp

Filesize
1024KB

Download
memory/2380-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2380-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2380-14-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2744-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads