Analysis

  • max time kernel
    193s
  • max time network
    199s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    27-04-2022 17:59

General

  • Target

    b2edb4fbce81855d476856b1aa8f298084a4aa6e46b987554dafe8187f5cfab3.exe

  • Size

    3.9MB

  • MD5

    42e5bcd207d5a1e3c2653b7e4395d9fc

  • SHA1

    c64912f0135901d83953aa31dd9878f660af7930

  • SHA256

    b2edb4fbce81855d476856b1aa8f298084a4aa6e46b987554dafe8187f5cfab3

  • SHA512

    945629d88b41154abb1085174b6fea142f1b96a5810eab4a9125f1d6f08c9fd61488b67e75d882ea35b5160860e30b0f1e2a0b2bc9584e66b1ec88ad0afdafcd

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 2 IoCs

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

  • Drops file in Program Files directory 16 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 2 IoCs
  • Modifies registry class 1 IoCs
  • Runs .reg file with regedit 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious behavior: SetClipboardViewer 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b2edb4fbce81855d476856b1aa8f298084a4aa6e46b987554dafe8187f5cfab3.exe
    "C:\Users\Admin\AppData\Local\Temp\b2edb4fbce81855d476856b1aa8f298084a4aa6e46b987554dafe8187f5cfab3.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3688
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Program Files (x86)\System\install.vbs"
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:3872
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Program Files (x86)\System\install.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4680
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im rutserv.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:4752
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im rfusclient.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:728
        • C:\Windows\SysWOW64\reg.exe
          reg delete "HKLM\SYSTEM\Remote Manipulator System" /f
          4⤵
            PID:408
          • C:\Windows\SysWOW64\regedit.exe
            regedit /s "regedit.reg"
            4⤵
            • Runs .reg file with regedit
            PID:4596
          • C:\Windows\SysWOW64\timeout.exe
            timeout 2
            4⤵
            • Delays execution with timeout.exe
            PID:4668
          • C:\Program Files (x86)\System\rutserv.exe
            rutserv.exe /silentinstall
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:4224
          • C:\Program Files (x86)\System\rutserv.exe
            rutserv.exe /firewall
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of SetWindowsHookEx
            PID:2932
          • C:\Program Files (x86)\System\rutserv.exe
            rutserv.exe /start
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:3420
    • C:\Program Files (x86)\System\rutserv.exe
      "C:\Program Files (x86)\System\rutserv.exe"
      1⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:448
      • C:\Program Files (x86)\System\rfusclient.exe
        "C:\Program Files (x86)\System\rfusclient.exe" /tray
        2⤵
        • Executes dropped EXE
        PID:4248
      • C:\Program Files (x86)\System\rfusclient.exe
        "C:\Program Files (x86)\System\rfusclient.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4156
        • C:\Program Files (x86)\System\rfusclient.exe
          "C:\Program Files (x86)\System\rfusclient.exe" /tray
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: SetClipboardViewer
          PID:1080

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Program Files (x86)\System\install.bat

      Filesize

      480B

      MD5

      99db27d776e103cad354b531ee1f20b9

      SHA1

      0b82d146df8528f66d1d14756f211fd3a8b1b91a

      SHA256

      240020a1a1941d1455135b5cb134e502a13b148be16cbb1552482aa03c29f8f3

      SHA512

      bc2ed33495c0a752397b2f1b9b7ba65f94ea5be82dde74c618342c83b68f1b92a4783b672cd427843533799e1af0875e0fd000b12236852e9e2fa93005d7ac69

    • C:\Program Files (x86)\System\install.vbs

      Filesize

      117B

      MD5

      65fc32766a238ff3e95984e325357dbb

      SHA1

      3ac16a2648410be8aa75f3e2817fbf69bb0e8922

      SHA256

      a7b067e9e4d44efe579c7cdb1e847d61af2323d3d73c6fffb22e178ae476f420

      SHA512

      621e81fc2d0f9dd92413481864638a140bee94c7dbd31f944826b21bd6ad6b8a59e63de9f7f0025cffc0efb7f9975dde77f523510ee23ada62c152a63a22f608

    • C:\Program Files (x86)\System\regedit.reg

      Filesize

      11KB

      MD5

      5e2bd8f8dacf1890a6275b51342fafc5

      SHA1

      29c2d1d951de808effc17799c6b9790323304ab9

      SHA256

      a0a3baaf5ec4f7b6614698f55c82e5eb68543da6cd8a3769ad514c38ba1a03a9

      SHA512

      10d874021238ba2b765f6948df4e56e9fd2d3fe53d61a1f44eb350e62727f1968185babed9f27e715b59158a0314d50d33abd323be00032290708d8fca922e09

    • C:\Program Files (x86)\System\rfusclient.exe

      Filesize

      1.5MB

      MD5

      b8667a1e84567fcf7821bcefb6a444af

      SHA1

      9c1f91fe77ad357c8f81205d65c9067a270d61f0

      SHA256

      dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9

      SHA512

      ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852

    • C:\Program Files (x86)\System\rfusclient.exe

      Filesize

      1.5MB

      MD5

      b8667a1e84567fcf7821bcefb6a444af

      SHA1

      9c1f91fe77ad357c8f81205d65c9067a270d61f0

      SHA256

      dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9

      SHA512

      ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852

    • C:\Program Files (x86)\System\rfusclient.exe

      Filesize

      1.5MB

      MD5

      b8667a1e84567fcf7821bcefb6a444af

      SHA1

      9c1f91fe77ad357c8f81205d65c9067a270d61f0

      SHA256

      dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9

      SHA512

      ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852

    • C:\Program Files (x86)\System\rfusclient.exe

      Filesize

      1.5MB

      MD5

      b8667a1e84567fcf7821bcefb6a444af

      SHA1

      9c1f91fe77ad357c8f81205d65c9067a270d61f0

      SHA256

      dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9

      SHA512

      ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852

    • C:\Program Files (x86)\System\rutserv.exe

      Filesize

      1.7MB

      MD5

      37a8802017a212bb7f5255abc7857969

      SHA1

      cb10c0d343c54538d12db8ed664d0a1fa35b6109

      SHA256

      1699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6

      SHA512

      4e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0

    • C:\Program Files (x86)\System\rutserv.exe

      Filesize

      1.7MB

      MD5

      37a8802017a212bb7f5255abc7857969

      SHA1

      cb10c0d343c54538d12db8ed664d0a1fa35b6109

      SHA256

      1699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6

      SHA512

      4e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0

    • C:\Program Files (x86)\System\rutserv.exe

      Filesize

      1.7MB

      MD5

      37a8802017a212bb7f5255abc7857969

      SHA1

      cb10c0d343c54538d12db8ed664d0a1fa35b6109

      SHA256

      1699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6

      SHA512

      4e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0

    • C:\Program Files (x86)\System\rutserv.exe

      Filesize

      1.7MB

      MD5

      37a8802017a212bb7f5255abc7857969

      SHA1

      cb10c0d343c54538d12db8ed664d0a1fa35b6109

      SHA256

      1699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6

      SHA512

      4e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0

    • C:\Program Files (x86)\System\rutserv.exe

      Filesize

      1.7MB

      MD5

      37a8802017a212bb7f5255abc7857969

      SHA1

      cb10c0d343c54538d12db8ed664d0a1fa35b6109

      SHA256

      1699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6

      SHA512

      4e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0

    • C:\Program Files (x86)\System\vp8decoder.dll

      Filesize

      155KB

      MD5

      88318158527985702f61d169434a4940

      SHA1

      3cc751ba256b5727eb0713aad6f554ff1e7bca57

      SHA256

      4c04d7968a9fe9d9258968d3a722263334bbf5f8af972f206a71f17fa293aa74

      SHA512

      5d88562b6c6d2a5b14390512712819238cd838914f7c48a27f017827cb9b825c24ff05a30333427acec93cd836e8f04158b86d17e6ac3dd62c55b2e2ff4e2aff

    • C:\Program Files (x86)\System\vp8encoder.dll

      Filesize

      593KB

      MD5

      6298c0af3d1d563834a218a9cc9f54bd

      SHA1

      0185cd591e454ed072e5a5077b25c612f6849dc9

      SHA256

      81af82019d9f45a697a8ca1788f2c5c0205af9892efd94879dedf4bc06db4172

      SHA512

      389d89053689537cdb582c0e8a7951a84549f0c36484db4346c31bdbe7cb93141f6a354069eb13e550297dc8ec35cd6899746e0c16abc876a0fe542cc450fffe

    • memory/448-169-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/448-168-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/448-167-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/448-166-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/448-165-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/448-196-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/1080-194-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/1080-190-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/1080-191-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/1080-192-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/1080-193-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/1080-195-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/2932-152-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/2932-155-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/2932-151-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/2932-153-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/2932-154-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/2932-156-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/3420-163-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/3420-159-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/3420-160-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/3420-162-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/3420-161-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/3420-177-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4156-178-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/4156-180-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/4156-186-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/4156-184-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/4156-182-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/4224-144-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4224-146-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4224-143-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4224-147-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4224-145-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4224-148-0x0000000000400000-0x0000000000AB9000-memory.dmp

      Filesize

      6.7MB

    • memory/4248-187-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/4248-183-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/4248-181-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/4248-185-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB

    • memory/4248-179-0x0000000000400000-0x00000000009B6000-memory.dmp

      Filesize

      5.7MB