Overview

overview

10

Static

static

3

2025-03-30...er.exe

windows7-x64

10

2025-03-30...er.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    141s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    30/03/2025, 09:24

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General

  • Target

    2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe

  • Size

    13.9MB

  • MD5

    44060047c09b10a66899ce012387c5c3

  • SHA1

    d7f0f95a1f168c74dcf2109e280d3da40af6f904

  • SHA256

    6542df9290b0e3312e5c6d143461b5258901597514b7cb3aed1280c8271041eb

  • SHA512

    d1258de502f4b38d3aee82ab8f978e9593e85f5b222ea05a9558fa1515b5e622daf08b8e936439c274a5c59242ec75c15df63f5d3580afcf56af31c8e73568ae

  • SSDEEP

    3072:AZnbTHQC2mC+vdVcQuHAGSr9viHWhPxO796t6B7Aw5S2FxmEBVrVrVrVrVrVrVrb:UnJjcngGSrlqFp6kCyxTT

Score
10/10
tofseedefense_evasiondiscoveryexecutionpersistenceprivilege_escalationtrojan

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.

    trojantofsee
  • Tofsee family
    tofsee
  • Windows security bypass 2 TTPs 1 IoCs
    defense_evasiontrojan
  • Creates new service(s) 2 TTPs
    persistenceexecution
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    defense_evasion
  • Sets service image path in registry 2 TTPs 1 IoCs
    persistence
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Launches sc.exe 3 IoCs

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

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

    persistenceprivilege_escalation
  • 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
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2524
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\spjohtzm\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:972
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rtmxemaq.exe" C:\Windows\SysWOW64\spjohtzm\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2160
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create spjohtzm binPath= "C:\Windows\SysWOW64\spjohtzm\rtmxemaq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2892
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description spjohtzm "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2720
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start spjohtzm
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2764
    • 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:2168
  • C:\Windows\SysWOW64\spjohtzm\rtmxemaq.exe
    C:\Windows\SysWOW64\spjohtzm\rtmxemaq.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_44060047c09b10a66899ce012387c5c3_black-basta_luca-stealer_smoke-loader.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2740
    • 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:2664

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

2
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

1
T1562.001

Modify Registry

2
T1112

Credential Access

Discovery

System Information Discovery

1
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\rtmxemaq.exe
    Filesize

    14.3MB

    MD5

    ae5f2e6c06b332da3d9055e5204320e9

    SHA1

    8e538e2f48490a7d606a1564771732bdd1a95698

    SHA256

    20ea51407fe568072ca18ec06ddd9c81cdf7a3b68cab40f66a77b58d21148d08

    SHA512

    5c6c3ed4712cf4060cbb51cd4f5389007f6e65a6250711b14cc695ae8a2574dfef928edad41ef8f4f1a3c384fd5799f1cf3c5d77eb95dfb5cabee1b5c98402bd

    Download Submit

  • memory/2524-7-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

    Download

  • memory/2524-4-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2524-1-0x0000000000580000-0x0000000000680000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/2524-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2524-8-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

    Download

  • memory/2524-2-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

    Download

  • memory/2664-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2664-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2664-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2664-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2664-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

    Download

  • memory/2740-17-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

    Download