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Analysis

  • max time kernel
    147s
  • max time network
    152s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    03/09/2024, 16:58

General

  • Target

    qkkcfptf.exe

  • Size

    11.6MB

  • MD5

    fed6d9f141d4ac6b3388a2c90722bd62

  • SHA1

    3480f699c94d4a520c8d92dfd2f6c84d5bd9668b

  • SHA256

    b84685b177c7bbd6e54c0cd81f5ac41c02e2c77a400b71a830636f93a686eaaf

  • SHA512

    f678216084e177bc51879d697f6e4201449874ed1c6f4c41fc1cb62aecf8ed5c3ab17784c1d30c481ee99c727fe0a29cd2854bdcaf554b3da425d59b5e957719

  • SSDEEP

    6144:rc6OZDisWsD0Td2HJxO+m8PuG1R4WnWjrsaz:r1OZDisvwdaxO0PuG1R4CWs

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Signatures

  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

  • Windows security bypass 2 TTPs 1 IoCs
  • Creates new service(s) 2 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 2 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.

  • Modifies data under HKEY_USERS 6 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\qkkcfptf.exe
    "C:\Users\Admin\AppData\Local\Temp\qkkcfptf.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3796
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\awehqupt\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4420
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fdsatjea.exe" C:\Windows\SysWOW64\awehqupt\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4988
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create awehqupt binPath= "C:\Windows\SysWOW64\awehqupt\fdsatjea.exe /d\"C:\Users\Admin\AppData\Local\Temp\qkkcfptf.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:660
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description awehqupt "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1672
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start awehqupt
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1468
    • 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:4332
  • C:\Windows\SysWOW64\awehqupt\fdsatjea.exe
    C:\Windows\SysWOW64\awehqupt\fdsatjea.exe /d"C:\Users\Admin\AppData\Local\Temp\qkkcfptf.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2144
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Windows security bypass
      • Sets service image path in registry
      • Deletes itself
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      PID:224

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    10.9MB

    MD5

    ae854d84008f2099cf2602f85fcec000

    SHA1

    723879b02375c48f27205b74776cfce13352d22e

    SHA256

    a332484a9142cee95c0417832356478df4493d3dd2cffa59d99428b342f74588

    SHA512

    24e2ab25ff6de13fe4686aaeeb3e336775b9c1c255ee72b49ee62776772165f7d58caa4e333fbdd9ee3685f3a8572832c4da62312d9ebfe68dd4de7fbc6f059e

  • memory/224-44-0x0000000002FF0000-0x0000000003000000-memory.dmp

    Filesize

    64KB

  • memory/224-35-0x0000000002FF0000-0x0000000003000000-memory.dmp

    Filesize

    64KB

  • memory/224-23-0x0000000002FE0000-0x0000000002FE6000-memory.dmp

    Filesize

    24KB

  • memory/224-26-0x0000000002FF0000-0x0000000003000000-memory.dmp

    Filesize

    64KB

  • memory/224-19-0x0000000004D50000-0x0000000004F5F000-memory.dmp

    Filesize

    2.1MB

  • memory/224-22-0x0000000004D50000-0x0000000004F5F000-memory.dmp

    Filesize

    2.1MB

  • memory/224-11-0x0000000002F70000-0x0000000002F85000-memory.dmp

    Filesize

    84KB

  • memory/224-29-0x0000000002FF0000-0x0000000003000000-memory.dmp

    Filesize

    64KB

  • memory/224-16-0x0000000002F70000-0x0000000002F85000-memory.dmp

    Filesize

    84KB

  • memory/224-17-0x0000000002F70000-0x0000000002F85000-memory.dmp

    Filesize

    84KB

  • memory/224-37-0x0000000002FF0000-0x0000000003000000-memory.dmp

    Filesize

    64KB

  • memory/224-54-0x00000000033B0000-0x00000000033B7000-memory.dmp

    Filesize

    28KB

  • memory/224-53-0x0000000009450000-0x000000000985B000-memory.dmp

    Filesize

    4.0MB

  • memory/224-50-0x0000000009450000-0x000000000985B000-memory.dmp

    Filesize

    4.0MB

  • memory/224-49-0x00000000033A0000-0x00000000033A5000-memory.dmp

    Filesize

    20KB

  • memory/224-46-0x00000000033A0000-0x00000000033A5000-memory.dmp

    Filesize

    20KB

  • memory/224-30-0x0000000002FF0000-0x0000000003000000-memory.dmp

    Filesize

    64KB

  • memory/224-31-0x0000000002FF0000-0x0000000003000000-memory.dmp

    Filesize

    64KB

  • memory/224-32-0x0000000002FF0000-0x0000000003000000-memory.dmp

    Filesize

    64KB

  • memory/224-42-0x0000000002FF0000-0x0000000003000000-memory.dmp

    Filesize

    64KB

  • memory/224-41-0x0000000002FF0000-0x0000000003000000-memory.dmp

    Filesize

    64KB

  • memory/224-40-0x0000000002FF0000-0x0000000003000000-memory.dmp

    Filesize

    64KB

  • memory/224-39-0x0000000002FF0000-0x0000000003000000-memory.dmp

    Filesize

    64KB

  • memory/224-38-0x0000000002FF0000-0x0000000003000000-memory.dmp

    Filesize

    64KB

  • memory/224-36-0x0000000002FF0000-0x0000000003000000-memory.dmp

    Filesize

    64KB

  • memory/224-45-0x0000000002FF0000-0x0000000003000000-memory.dmp

    Filesize

    64KB

  • memory/224-34-0x0000000002FF0000-0x0000000003000000-memory.dmp

    Filesize

    64KB

  • memory/224-33-0x0000000002FF0000-0x0000000003000000-memory.dmp

    Filesize

    64KB

  • memory/224-43-0x0000000002FF0000-0x0000000003000000-memory.dmp

    Filesize

    64KB

  • memory/2144-14-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB

  • memory/3796-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/3796-1-0x00000000008A0000-0x00000000009A0000-memory.dmp

    Filesize

    1024KB

  • memory/3796-7-0x0000000000400000-0x00000000005FE000-memory.dmp

    Filesize

    2.0MB

  • memory/3796-8-0x0000000000840000-0x0000000000853000-memory.dmp

    Filesize

    76KB

  • memory/3796-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/3796-2-0x0000000000840000-0x0000000000853000-memory.dmp

    Filesize

    76KB