Analysis

  • max time kernel
    145s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/04/2025, 06:15

General

  • Target

    2025-04-04_fdfed1c304302f40c823d279799dcb3d_amadey_rhadamanthys_smoke-loader.exe

  • Size

    11.9MB

  • MD5

    fdfed1c304302f40c823d279799dcb3d

  • SHA1

    d6a811a72f0083d4cb011cea144718f2cf3b84ad

  • SHA256

    c910c55ca86cbedb0b13a39504b0810886fe3223ce9e668045ee48d12e137b4d

  • SHA512

    a21f10523e3e0f51e6a43e5b6b35754ce2f4f2bfa740a42a75e216ea5c0e8d1aed7c20dbb7ef354c6721314d27b884455ce1895b65aaf86b957ff9dc2da17664

  • SSDEEP

    3072:GUYC9q24pkJimkGgbdGz9uIYogXFYfKkqCZB8h0e2R10JKuC5PsFRRRRRRRRRRRU:GUYgq6krsz9Ti1h0eSuJ4s4

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.

  • Tofsee family
  • Creates new service(s) 2 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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.

  • 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.

  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-04-04_fdfed1c304302f40c823d279799dcb3d_amadey_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-04-04_fdfed1c304302f40c823d279799dcb3d_amadey_rhadamanthys_smoke-loader.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3620
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wghvbte\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2868
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gibmtbpf.exe" C:\Windows\SysWOW64\wghvbte\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5020
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create wghvbte binPath= "C:\Windows\SysWOW64\wghvbte\gibmtbpf.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-04-04_fdfed1c304302f40c823d279799dcb3d_amadey_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2464
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description wghvbte "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1356
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start wghvbte
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3048
    • 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:2964
  • C:\Windows\SysWOW64\wghvbte\gibmtbpf.exe
    C:\Windows\SysWOW64\wghvbte\gibmtbpf.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-04-04_fdfed1c304302f40c823d279799dcb3d_amadey_rhadamanthys_smoke-loader.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2304
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:4932

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\gibmtbpf.exe

    Filesize

    12.4MB

    MD5

    76a912a51c66867184814d7bfb7de2b6

    SHA1

    860a80d61538f2e8f56c1c5535815c10e799f526

    SHA256

    51f8f66a07eb3a67750e8d184a4b7fd3f4d0ceb10c674365db84ac2d36c72a11

    SHA512

    2968084802cccc12358715a28efd789ad754604a421bdb0638f87ac21d8cd24b8267229d4e4e5186379d3ebf65687ec7d87eb860ba8f4900b6d7ee196dc7d730

  • memory/2304-9-0x0000000000400000-0x0000000003DA3000-memory.dmp

    Filesize

    57.6MB

  • memory/3620-1-0x0000000003E20000-0x0000000003F20000-memory.dmp

    Filesize

    1024KB

  • memory/3620-2-0x0000000003DF0000-0x0000000003E03000-memory.dmp

    Filesize

    76KB

  • memory/3620-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/3620-13-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/3620-12-0x0000000003DF0000-0x0000000003E03000-memory.dmp

    Filesize

    76KB

  • memory/3620-11-0x0000000000400000-0x0000000003DA3000-memory.dmp

    Filesize

    57.6MB

  • memory/4932-8-0x0000000000530000-0x0000000000545000-memory.dmp

    Filesize

    84KB

  • memory/4932-14-0x0000000000530000-0x0000000000545000-memory.dmp

    Filesize

    84KB

  • memory/4932-15-0x0000000000530000-0x0000000000545000-memory.dmp

    Filesize

    84KB