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Analysis

  • max time kernel
    147s
  • max time network
    152s
  • platform
    windows10-1703_x64
  • resource
    win10-20220901-en
  • resource tags

    arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
  • submitted
    25/12/2022, 22:40

General

  • Target

    ac11fed62d81f2d45fecf3786b6a2e93e604e56c90dcfe3cad438bf9684e127e.exe

  • Size

    231KB

  • MD5

    32e2938533598496e97070a73f42bb88

  • SHA1

    47c1592b43834ea631902e2d8050f28ac646619c

  • SHA256

    ac11fed62d81f2d45fecf3786b6a2e93e604e56c90dcfe3cad438bf9684e127e

  • SHA512

    668007ceaeab89ed06dad648e9aabaca9a3afe19db3d5559ec59a31acf6ff93b75d21c3a03f4f28ab0f1e9adb71096254f6433987c10f6be02c3be063f8cfc2a

  • SSDEEP

    3072:PPnX+LnXq5zvwby4A+hcj2qSpX9J4blS1g/tK8FPXLrcSb54VIcVTuh:eLXYkyRPj2qotMtK8FPDbIr

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

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
  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • XMRig Miner payload 1 IoCs
  • Creates new service(s) 1 TTPs
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 2 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). Likely ransomware behaviour.

  • Modifies data under HKEY_USERS 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ac11fed62d81f2d45fecf3786b6a2e93e604e56c90dcfe3cad438bf9684e127e.exe
    "C:\Users\Admin\AppData\Local\Temp\ac11fed62d81f2d45fecf3786b6a2e93e604e56c90dcfe3cad438bf9684e127e.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2492
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zcedymwp\
      2⤵
        PID:4048
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ciapune.exe" C:\Windows\SysWOW64\zcedymwp\
        2⤵
          PID:5020
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create zcedymwp binPath= "C:\Windows\SysWOW64\zcedymwp\ciapune.exe /d\"C:\Users\Admin\AppData\Local\Temp\ac11fed62d81f2d45fecf3786b6a2e93e604e56c90dcfe3cad438bf9684e127e.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:4268
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description zcedymwp "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:1304
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start zcedymwp
          2⤵
          • Launches sc.exe
          PID:3428
        • 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
          PID:4244
      • C:\Windows\SysWOW64\zcedymwp\ciapune.exe
        C:\Windows\SysWOW64\zcedymwp\ciapune.exe /d"C:\Users\Admin\AppData\Local\Temp\ac11fed62d81f2d45fecf3786b6a2e93e604e56c90dcfe3cad438bf9684e127e.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4944
        • C:\Windows\SysWOW64\svchost.exe
          svchost.exe
          2⤵
          • Windows security bypass
          • Sets service image path in registry
          • Deletes itself
          • Drops file in System32 directory
          • Suspicious use of SetThreadContext
          • Modifies data under HKEY_USERS
          • Suspicious use of WriteProcessMemory
          PID:4728
          • C:\Windows\SysWOW64\svchost.exe
            svchost.exe -o fastpool.xyz:10060 -u 9mLwUkiK8Yp89zQQYodWKN29jVVVz1cWDFZctWxge16Zi3TpHnSBnnVcCDhSRXdesnMBdVjtDwh1N71KD9z37EzgKSM1tmS.60000 -p x -k -a cn/half
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3880

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        11.3MB

        MD5

        1eae602d1d77430b85696ebf1762b82e

        SHA1

        570745c3e923c49dbd71ce866c6c473fe549629b

        SHA256

        a9cfb107ea6aca44367211b6118c635d851720eb1d56a511017464a586d4637f

        SHA512

        faac974f4d8bb3a1ff24169a3616c9c9ab6a1cb1569ccc3908ace7f479bab3977b146632976c2359f9090f2cc5e6da3bfc0f3092803a94250cbbb221dfb130b5

      • C:\Windows\SysWOW64\zcedymwp\ciapune.exe

        Filesize

        11.3MB

        MD5

        1eae602d1d77430b85696ebf1762b82e

        SHA1

        570745c3e923c49dbd71ce866c6c473fe549629b

        SHA256

        a9cfb107ea6aca44367211b6118c635d851720eb1d56a511017464a586d4637f

        SHA512

        faac974f4d8bb3a1ff24169a3616c9c9ab6a1cb1569ccc3908ace7f479bab3977b146632976c2359f9090f2cc5e6da3bfc0f3092803a94250cbbb221dfb130b5

      • memory/2492-162-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-164-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-129-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-132-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-134-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-133-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-131-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-136-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-135-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-137-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-139-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-140-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-141-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-138-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-130-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-128-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-127-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-126-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-163-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-142-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-143-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-144-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-146-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-145-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-147-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-148-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-149-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-151-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-150-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-152-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-153-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-154-0x00000000005AA000-0x00000000005BA000-memory.dmp

        Filesize

        64KB

      • memory/2492-155-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-156-0x0000000000460000-0x00000000005AA000-memory.dmp

        Filesize

        1.3MB

      • memory/2492-157-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-158-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-159-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-160-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-161-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-120-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-124-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-125-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-123-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-166-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-168-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-167-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-169-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-240-0x0000000000400000-0x000000000045E000-memory.dmp

        Filesize

        376KB

      • memory/2492-237-0x00000000005AA000-0x00000000005BA000-memory.dmp

        Filesize

        64KB

      • memory/2492-121-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-122-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/2492-165-0x0000000000400000-0x000000000045E000-memory.dmp

        Filesize

        376KB

      • memory/4048-175-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/4048-171-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/4048-172-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/4048-174-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/4048-173-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/4268-186-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/4268-188-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/4268-189-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/4268-184-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/4268-187-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/4268-190-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/4268-185-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/4728-488-0x0000000000C00000-0x0000000000C15000-memory.dmp

        Filesize

        84KB

      • memory/4728-400-0x0000000000C00000-0x0000000000C15000-memory.dmp

        Filesize

        84KB

      • memory/4944-335-0x0000000000613000-0x0000000000623000-memory.dmp

        Filesize

        64KB

      • memory/4944-305-0x0000000000613000-0x0000000000623000-memory.dmp

        Filesize

        64KB

      • memory/4944-309-0x00000000004C0000-0x000000000060A000-memory.dmp

        Filesize

        1.3MB

      • memory/4944-337-0x0000000000400000-0x000000000045E000-memory.dmp

        Filesize

        376KB

      • memory/5020-178-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/5020-179-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/5020-180-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/5020-181-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB

      • memory/5020-177-0x0000000077D90000-0x0000000077F1E000-memory.dmp

        Filesize

        1.6MB