tofsee | fc51ae20fa03a0611bcf5ee4a88d8c4e2aed0d18079a95bbea6dbfd4acaec8b2

General

Target

2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe
Size

10.2MB
MD5

4015969bc08eabea0230ce336513319d
SHA1

88641baeed3bf398dd82f0239e84f400d3a01ccf
SHA256

fc51ae20fa03a0611bcf5ee4a88d8c4e2aed0d18079a95bbea6dbfd4acaec8b2
SHA512

a505752650f0f4f87545c7ec22f28b8ce78d859377ee3a43c85fbd17e392060fb03e8dbd0fb62e0325986bf97b391122c7a2154e56b0626c667a9e0150347a9c
SSDEEP

196608:DyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:uXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXn

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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
5072	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\txvjxpcp\ImagePath = "C:\\Windows\\SysWOW64\\txvjxpcp\\uhtqjwbl.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3625106387-4207083342-115176794-1000\Control Panel\International\Geo\Nation	2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe

Deletes itself 1 IoCs

pid	Process
2784	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5100	uhtqjwbl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5100 set thread context of 2784	5100	uhtqjwbl.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
448	sc.exe
3988	sc.exe
2704	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-08_4015969bc08eabea0230ce336513319d_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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uhtqjwbl.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	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3336 wrote to memory of 3056	3336	2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe	87
PID 3336 wrote to memory of 3056	3336	2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe	87
PID 3336 wrote to memory of 3056	3336	2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe	87
PID 3336 wrote to memory of 1796	3336	2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe	89
PID 3336 wrote to memory of 1796	3336	2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe	89
PID 3336 wrote to memory of 1796	3336	2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe	89
PID 3336 wrote to memory of 448	3336	2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe	91
PID 3336 wrote to memory of 448	3336	2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe	91
PID 3336 wrote to memory of 448	3336	2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe	91
PID 3336 wrote to memory of 3988	3336	2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe	93
PID 3336 wrote to memory of 3988	3336	2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe	93
PID 3336 wrote to memory of 3988	3336	2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe	93
PID 3336 wrote to memory of 2704	3336	2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe	97
PID 3336 wrote to memory of 2704	3336	2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe	97
PID 3336 wrote to memory of 2704	3336	2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe	97
PID 3336 wrote to memory of 5072	3336	2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe	100
PID 3336 wrote to memory of 5072	3336	2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe	100
PID 3336 wrote to memory of 5072	3336	2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe	100
PID 5100 wrote to memory of 2784	5100	uhtqjwbl.exe	102
PID 5100 wrote to memory of 2784	5100	uhtqjwbl.exe	102
PID 5100 wrote to memory of 2784	5100	uhtqjwbl.exe	102
PID 5100 wrote to memory of 2784	5100	uhtqjwbl.exe	102
PID 5100 wrote to memory of 2784	5100	uhtqjwbl.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3336
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\txvjxpcp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3056
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uhtqjwbl.exe" C:\Windows\SysWOW64\txvjxpcp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1796
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create txvjxpcp binPath= "C:\Windows\SysWOW64\txvjxpcp\uhtqjwbl.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:448
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description txvjxpcp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3988
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start txvjxpcp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2704
- 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:5072

C:\Windows\SysWOW64\txvjxpcp\uhtqjwbl.exe
C:\Windows\SysWOW64\txvjxpcp\uhtqjwbl.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-08_4015969bc08eabea0230ce336513319d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5100
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2784

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\uhtqjwbl.exe

Filesize
12.4MB

MD5
3518835fbb396f47b0a98525a157c9cf

SHA1
665250b00a29ec2131ead10e400cabfeee5a8c54

SHA256
0871d900893bf2ed1bbea2555c3749f3bbfe9d7c1ec306b03b6cce600445fde5

SHA512
5f0b1f82e942060779ac352394a1cdd507bcc60d4e88e769d24d8fa8925349c7257407e709abcdbdedb2043e07b68634e52e05b92fdd3749c1844aae8d824b1b

Download Submit
memory/2784-16-0x0000000000E20000-0x0000000000E35000-memory.dmp

Filesize
84KB

Download
memory/2784-18-0x0000000000E20000-0x0000000000E35000-memory.dmp

Filesize
84KB

Download
memory/2784-13-0x0000000000E20000-0x0000000000E35000-memory.dmp

Filesize
84KB

Download
memory/3336-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3336-1-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download
memory/3336-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3336-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3336-8-0x00000000004C0000-0x00000000004D3000-memory.dmp

Filesize
76KB

Download
memory/3336-2-0x00000000004C0000-0x00000000004D3000-memory.dmp

Filesize
76KB

Download
memory/5100-17-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/5100-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/5100-11-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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