tofsee | 994e81fb5f54eb9e52df8df253dcdccc72d1392cedf8df90326ab0779df19524

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 16:31

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General

Target

2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe
Size

11.0MB
MD5

691538f9228fb8bdff33d93f22b3d9ad
SHA1

9567d6d79cfea0b287f7081c0676f82ddb7971d9
SHA256

994e81fb5f54eb9e52df8df253dcdccc72d1392cedf8df90326ab0779df19524
SHA512

6cecc83c562a06af8b77aa838f1a913c462737bcf4601e4def3c7e3bf1e8dacd5b46a89e3ee9ede7f49fd273b9fadebb8da248360426bd6cbbff555e85571084
SSDEEP

24576:86WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQv:RWdLQkt

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\jvncwfqg = "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
2592	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\jvncwfqg\ImagePath = "C:\\Windows\\SysWOW64\\jvncwfqg\\uxdxmxio.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3024	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2564	uxdxmxio.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2564 set thread context of 3024	2564	uxdxmxio.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2696	sc.exe
2868	sc.exe
2532	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	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	uxdxmxio.exe
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	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2640 wrote to memory of 2700	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	30
PID 2640 wrote to memory of 2700	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	30
PID 2640 wrote to memory of 2700	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	30
PID 2640 wrote to memory of 2700	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	30
PID 2640 wrote to memory of 2756	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	32
PID 2640 wrote to memory of 2756	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	32
PID 2640 wrote to memory of 2756	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	32
PID 2640 wrote to memory of 2756	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	32
PID 2640 wrote to memory of 2696	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	34
PID 2640 wrote to memory of 2696	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	34
PID 2640 wrote to memory of 2696	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	34
PID 2640 wrote to memory of 2696	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	34
PID 2640 wrote to memory of 2868	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	36
PID 2640 wrote to memory of 2868	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	36
PID 2640 wrote to memory of 2868	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	36
PID 2640 wrote to memory of 2868	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	36
PID 2640 wrote to memory of 2532	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	38
PID 2640 wrote to memory of 2532	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	38
PID 2640 wrote to memory of 2532	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	38
PID 2640 wrote to memory of 2532	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	38
PID 2564 wrote to memory of 3024	2564	uxdxmxio.exe	41
PID 2564 wrote to memory of 3024	2564	uxdxmxio.exe	41
PID 2564 wrote to memory of 3024	2564	uxdxmxio.exe	41
PID 2564 wrote to memory of 3024	2564	uxdxmxio.exe	41
PID 2564 wrote to memory of 3024	2564	uxdxmxio.exe	41
PID 2564 wrote to memory of 3024	2564	uxdxmxio.exe	41
PID 2640 wrote to memory of 2592	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	42
PID 2640 wrote to memory of 2592	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	42
PID 2640 wrote to memory of 2592	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	42
PID 2640 wrote to memory of 2592	2640	2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2640
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jvncwfqg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2700
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uxdxmxio.exe" C:\Windows\SysWOW64\jvncwfqg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2756
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jvncwfqg binPath= "C:\Windows\SysWOW64\jvncwfqg\uxdxmxio.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2696
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jvncwfqg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2868
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jvncwfqg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2532
- 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:2592

C:\Windows\SysWOW64\jvncwfqg\uxdxmxio.exe
C:\Windows\SysWOW64\jvncwfqg\uxdxmxio.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_691538f9228fb8bdff33d93f22b3d9ad_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2564
- 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:3024

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\uxdxmxio.exe

Filesize
11.4MB

MD5
ab9ec8ebe9690afe05cff8a25153d1f8

SHA1
c3dc0621e73afa945a7ef399fa5872342b102629

SHA256
ac175fef445c08ccff4525c5f47c054669484534dd987736c49e8032323b790c

SHA512
9d2bc692eec1313359d66345fd0784d595c86ce6129156016ba847feb6c3dc410924c3f9ce078abfd1571bbc9fd91ed7a40a16d322e66d45e9ea2fdf0cd94d6b

Download Submit
memory/2564-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2640-14-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2640-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2640-1-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download
memory/2640-15-0x00000000003A0000-0x00000000003B3000-memory.dmp

Filesize
76KB

Download
memory/2640-2-0x00000000003A0000-0x00000000003B3000-memory.dmp

Filesize
76KB

Download
memory/2640-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3024-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3024-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3024-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3024-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3024-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads