Analysis

  • max time kernel
    145s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    16-05-2022 02:03

General

  • Target

    bc3758b4698a77d9126ad97c6bf695e2cfeb8b1ced85a948f24e7895c635ae44.exe

  • Size

    4.3MB

  • MD5

    037e9f1ec832baabe53323cbd57603c6

  • SHA1

    89dc1f40f9a97d73b2d5ad059a61b0a3e783cc35

  • SHA256

    bc3758b4698a77d9126ad97c6bf695e2cfeb8b1ced85a948f24e7895c635ae44

  • SHA512

    16145105bc6ced023d143f21ed687d6c1dc92925af592e3bdb9510c77afe1abd2b7e92e24f2ab515d1189b5ff31529a60b950f0e5ce37dc309a14630a8de6c68

Malware Config

Signatures

  • RMS

    Remote Manipulator System (RMS) is a remote access tool developed by Russian organization TektonIT.

  • ACProtect 1.3x - 1.4x DLL software 2 IoCs

    Detects file using ACProtect software.

  • ASPack v2.12-2.42 9 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Executes dropped EXE 7 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Drops file in Program Files directory 20 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Kills process with taskkill 2 IoCs
  • Modifies registry class 2 IoCs
  • Runs .reg file with regedit 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious behavior: SetClipboardViewer 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 11 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bc3758b4698a77d9126ad97c6bf695e2cfeb8b1ced85a948f24e7895c635ae44.exe
    "C:\Users\Admin\AppData\Local\Temp\bc3758b4698a77d9126ad97c6bf695e2cfeb8b1ced85a948f24e7895c635ae44.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1280
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Program Files\word\install.vbs"
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:4816
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Program Files\word\install.bat" "
        3⤵
        • Checks computer location settings
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:2076
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im rutserv.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:4924
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im rfusclient.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:4320
        • C:\Windows\SysWOW64\reg.exe
          reg delete "HKLM\SYSTEM\Remote Manipulator System" /f
          4⤵
            PID:2556
          • C:\Windows\SysWOW64\regedit.exe
            regedit /s "regedit.reg"
            4⤵
            • Runs .reg file with regedit
            PID:2548
          • C:\Windows\SysWOW64\timeout.exe
            timeout 2
            4⤵
            • Delays execution with timeout.exe
            PID:4460
          • C:\Program Files\word\rutserv.exe
            rutserv.exe /silentinstall
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:4800
          • C:\Program Files\word\rutserv.exe
            rutserv.exe /firewall
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of SetWindowsHookEx
            PID:4776
          • C:\Program Files\word\rutserv.exe
            rutserv.exe /start
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:2204
          • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
            "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Program Files\word\1.doc" /o ""
            4⤵
            • Drops file in Program Files directory
            • Checks processor information in registry
            • Enumerates system info in registry
            • Suspicious behavior: AddClipboardFormatListener
            • Suspicious use of SetWindowsHookEx
            PID:3600
    • C:\Program Files\word\rutserv.exe
      "C:\Program Files\word\rutserv.exe"
      1⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4972
      • C:\Program Files\word\rfusclient.exe
        "C:\Program Files\word\rfusclient.exe" /tray
        2⤵
        • Executes dropped EXE
        PID:3260
      • C:\Program Files\word\rfusclient.exe
        "C:\Program Files\word\rfusclient.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3120
        • C:\Program Files\word\rfusclient.exe
          "C:\Program Files\word\rfusclient.exe" /tray
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: SetClipboardViewer
          PID:3208

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Program Files\word\1.doc

      Filesize

      49KB

      MD5

      2d17816c1b66dd964511796c037045e5

      SHA1

      4f7199f48ed081de8a904a77ed73c65f35d15bf9

      SHA256

      9585e54a4d46e70491c8098d9abeaeb470a12a2a45e1bfd00100d28d79df61c4

      SHA512

      0b0c21f94ae6d4f7687a7e1fc92e182abd39da807f4465c22830d0a9425731d603c790d85481d3fbc4d6cfd34a2bb899adf02b30f30bfb0ad9bc031b51fe37be

    • C:\Program Files\word\install.bat

      Filesize

      304B

      MD5

      73e89f8df08e778feca688998addfec4

      SHA1

      a715a2dba5412da8bfd17ccff4cf931822463085

      SHA256

      0506dec7ee56d3e967dba45fa02e410a9c79530878244c2b23e6599ec7ff6bfd

      SHA512

      a93d30718fefc5b2dcf17f16b599f03f91fb7e8e99d9a2a7986d6138755866772446cd1c287b85c849b5505735f1d924aff534e5857a8a79e157c237f98892d2

    • C:\Program Files\word\install.vbs

      Filesize

      117B

      MD5

      65fc32766a238ff3e95984e325357dbb

      SHA1

      3ac16a2648410be8aa75f3e2817fbf69bb0e8922

      SHA256

      a7b067e9e4d44efe579c7cdb1e847d61af2323d3d73c6fffb22e178ae476f420

      SHA512

      621e81fc2d0f9dd92413481864638a140bee94c7dbd31f944826b21bd6ad6b8a59e63de9f7f0025cffc0efb7f9975dde77f523510ee23ada62c152a63a22f608

    • C:\Program Files\word\regedit.reg

      Filesize

      11KB

      MD5

      7b9375d672ff35e2331439dc4bfb95a2

      SHA1

      76bef183b79906643cd95177d2f4976666ec1d76

      SHA256

      7a1071e0068f10191ff416c9133f133d63a56de1fc3c62baa4e57e3acecd7fa6

      SHA512

      4aee9306a57570e99de699f8f6cb6eb2541fdbcc35b036cd90dbe5e15468faa61372c68b15b09f827a5bea5cdcb6eef6107bec4120b7e23674e6d979499e8e22

    • C:\Program Files\word\rfusclient.exe

      Filesize

      1.5MB

      MD5

      b8667a1e84567fcf7821bcefb6a444af

      SHA1

      9c1f91fe77ad357c8f81205d65c9067a270d61f0

      SHA256

      dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9

      SHA512

      ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852

    • C:\Program Files\word\rfusclient.exe

      Filesize

      1.5MB

      MD5

      b8667a1e84567fcf7821bcefb6a444af

      SHA1

      9c1f91fe77ad357c8f81205d65c9067a270d61f0

      SHA256

      dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9

      SHA512

      ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852

    • C:\Program Files\word\rfusclient.exe

      Filesize

      1.5MB

      MD5

      b8667a1e84567fcf7821bcefb6a444af

      SHA1

      9c1f91fe77ad357c8f81205d65c9067a270d61f0

      SHA256

      dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9

      SHA512

      ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852

    • C:\Program Files\word\rfusclient.exe

      Filesize

      1.5MB

      MD5

      b8667a1e84567fcf7821bcefb6a444af

      SHA1

      9c1f91fe77ad357c8f81205d65c9067a270d61f0

      SHA256

      dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9

      SHA512

      ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852

    • C:\Program Files\word\rutserv.exe

      Filesize

      1.7MB

      MD5

      37a8802017a212bb7f5255abc7857969

      SHA1

      cb10c0d343c54538d12db8ed664d0a1fa35b6109

      SHA256

      1699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6

      SHA512

      4e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0

    • C:\Program Files\word\rutserv.exe

      Filesize

      1.7MB

      MD5

      37a8802017a212bb7f5255abc7857969

      SHA1

      cb10c0d343c54538d12db8ed664d0a1fa35b6109

      SHA256

      1699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6

      SHA512

      4e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0

    • C:\Program Files\word\rutserv.exe

      Filesize

      1.7MB

      MD5

      37a8802017a212bb7f5255abc7857969

      SHA1

      cb10c0d343c54538d12db8ed664d0a1fa35b6109

      SHA256

      1699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6

      SHA512

      4e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0

    • C:\Program Files\word\rutserv.exe

      Filesize

      1.7MB

      MD5

      37a8802017a212bb7f5255abc7857969

      SHA1

      cb10c0d343c54538d12db8ed664d0a1fa35b6109

      SHA256

      1699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6

      SHA512

      4e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0

    • C:\Program Files\word\rutserv.exe

      Filesize

      1.7MB

      MD5

      37a8802017a212bb7f5255abc7857969

      SHA1

      cb10c0d343c54538d12db8ed664d0a1fa35b6109

      SHA256

      1699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6

      SHA512

      4e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0

    • C:\Program Files\word\vp8decoder.dll

      Filesize

      155KB

      MD5

      88318158527985702f61d169434a4940

      SHA1

      3cc751ba256b5727eb0713aad6f554ff1e7bca57

      SHA256

      4c04d7968a9fe9d9258968d3a722263334bbf5f8af972f206a71f17fa293aa74

      SHA512

      5d88562b6c6d2a5b14390512712819238cd838914f7c48a27f017827cb9b825c24ff05a30333427acec93cd836e8f04158b86d17e6ac3dd62c55b2e2ff4e2aff

    • C:\Program Files\word\vp8encoder.dll

      Filesize

      593KB

      MD5

      6298c0af3d1d563834a218a9cc9f54bd

      SHA1

      0185cd591e454ed072e5a5077b25c612f6849dc9

      SHA256

      81af82019d9f45a697a8ca1788f2c5c0205af9892efd94879dedf4bc06db4172

      SHA512

      389d89053689537cdb582c0e8a7951a84549f0c36484db4346c31bdbe7cb93141f6a354069eb13e550297dc8ec35cd6899746e0c16abc876a0fe542cc450fffe

    • memory/2076-133-0x0000000000000000-mapping.dmp

    • memory/2204-163-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/2204-179-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/2204-162-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/2204-161-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/2204-160-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/2204-159-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/2204-157-0x0000000000000000-mapping.dmp

    • memory/2548-137-0x0000000000000000-mapping.dmp

    • memory/2556-136-0x0000000000000000-mapping.dmp

    • memory/3120-188-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/3120-184-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/3120-185-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/3120-174-0x0000000000000000-mapping.dmp

    • memory/3120-189-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/3120-182-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/3208-200-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/3208-204-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/3208-199-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/3208-197-0x0000000000000000-mapping.dmp

    • memory/3208-201-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/3208-202-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/3208-203-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/3260-180-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/3260-173-0x0000000000000000-mapping.dmp

    • memory/3260-176-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/3260-178-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/3260-183-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/3260-181-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/3600-191-0x00007FFEAAFB0000-0x00007FFEAAFC0000-memory.dmp

      Filesize

      64KB

    • memory/3600-194-0x00007FFEAAFB0000-0x00007FFEAAFC0000-memory.dmp

      Filesize

      64KB

    • memory/3600-210-0x00007FFEAAFB0000-0x00007FFEAAFC0000-memory.dmp

      Filesize

      64KB

    • memory/3600-209-0x00007FFEAAFB0000-0x00007FFEAAFC0000-memory.dmp

      Filesize

      64KB

    • memory/3600-208-0x00007FFEAAFB0000-0x00007FFEAAFC0000-memory.dmp

      Filesize

      64KB

    • memory/3600-207-0x00007FFEAAFB0000-0x00007FFEAAFC0000-memory.dmp

      Filesize

      64KB

    • memory/3600-187-0x0000000000000000-mapping.dmp

    • memory/3600-190-0x00007FFEAAFB0000-0x00007FFEAAFC0000-memory.dmp

      Filesize

      64KB

    • memory/3600-196-0x00007FFEA8960000-0x00007FFEA8970000-memory.dmp

      Filesize

      64KB

    • memory/3600-195-0x00007FFEA8960000-0x00007FFEA8970000-memory.dmp

      Filesize

      64KB

    • memory/3600-192-0x00007FFEAAFB0000-0x00007FFEAAFC0000-memory.dmp

      Filesize

      64KB

    • memory/3600-193-0x00007FFEAAFB0000-0x00007FFEAAFC0000-memory.dmp

      Filesize

      64KB

    • memory/4320-135-0x0000000000000000-mapping.dmp

    • memory/4460-139-0x0000000000000000-mapping.dmp

    • memory/4776-153-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4776-154-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4776-156-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4776-155-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4776-149-0x0000000000000000-mapping.dmp

    • memory/4776-151-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4776-152-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4800-144-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4800-148-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4800-146-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4800-145-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4800-147-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4800-143-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4800-140-0x0000000000000000-mapping.dmp

    • memory/4816-130-0x0000000000000000-mapping.dmp

    • memory/4924-134-0x0000000000000000-mapping.dmp

    • memory/4972-169-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4972-205-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4972-165-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4972-166-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4972-167-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4972-168-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB