Analysis

  • max time kernel
    65s
  • max time network
    75s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-07-2024 16:11

General

  • Target

    bb6ec92275ec00a69b2c6e0532509222093d7026c8766274a69d985bcc1eb65e.exe

  • Size

    75KB

  • MD5

    c53e027bf91d7e8c8da245ccd28279e5

  • SHA1

    4d1fb9ab277f997a63cd42fd76467715b67579e4

  • SHA256

    bb6ec92275ec00a69b2c6e0532509222093d7026c8766274a69d985bcc1eb65e

  • SHA512

    5444f4b9737639dcf3321ae8d8ecea2e8865de3acae50a054136d741911371b4102b7a7f47a66d15d08c63022cb1afd3c00ee3241bb8be38ccfd8adda53a674a

  • SSDEEP

    1536:9aX51pVH9hsgNGLs6BLM1frxz/HTfcKKBaJGff:OfJGLs6BwNxnfTKsGff

Score
10/10

Malware Config

Signatures

  • Quantum Ransomware

    A rebrand of the MountLocker ransomware first seen in August 2021.

  • Drops desktop.ini file(s) 25 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bb6ec92275ec00a69b2c6e0532509222093d7026c8766274a69d985bcc1eb65e.exe
    "C:\Users\Admin\AppData\Local\Temp\bb6ec92275ec00a69b2c6e0532509222093d7026c8766274a69d985bcc1eb65e.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2736
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\\0E576EF6.bat" "C:\Users\Admin\AppData\Local\Temp\bb6ec92275ec00a69b2c6e0532509222093d7026c8766274a69d985bcc1eb65e.exe""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:540
      • C:\Windows\system32\attrib.exe
        attrib -s -r -h "C:\Users\Admin\AppData\Local\Temp\bb6ec92275ec00a69b2c6e0532509222093d7026c8766274a69d985bcc1eb65e.exe"
        3⤵
        • Views/modifies file attributes
        PID:2676
  • C:\Windows\explorer.exe
    "explorer.exe" README_TO_DECRYPT.html
    1⤵
      PID:3440
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:2848
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument C:\Users\Admin\Desktop\README_TO_DECRYPT.html
        2⤵
        • Enumerates system info in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:4796
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffee92946f8,0x7ffee9294708,0x7ffee9294718
          3⤵
            PID:740
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2068,5553872096869099891,5209716382754810378,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2088 /prefetch:2
            3⤵
              PID:4852
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2068,5553872096869099891,5209716382754810378,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2396 /prefetch:3
              3⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:2184
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2068,5553872096869099891,5209716382754810378,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2944 /prefetch:8
              3⤵
                PID:4016
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,5553872096869099891,5209716382754810378,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3348 /prefetch:1
                3⤵
                  PID:3092
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2068,5553872096869099891,5209716382754810378,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3364 /prefetch:1
                  3⤵
                    PID:1468
              • C:\Windows\System32\CompPkgSrv.exe
                C:\Windows\System32\CompPkgSrv.exe -Embedding
                1⤵
                  PID:2412
                • C:\Windows\System32\CompPkgSrv.exe
                  C:\Windows\System32\CompPkgSrv.exe -Embedding
                  1⤵
                    PID:3328

                  Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

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                  Downloads

                  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                    Filesize

                    152B

                    MD5

                    87f7abeb82600e1e640b843ad50fe0a1

                    SHA1

                    045bbada3f23fc59941bf7d0210fb160cb78ae87

                    SHA256

                    b35d6906050d90a81d23646f86c20a8f5d42f058ffc6436fb0a2b8bd71ee1262

                    SHA512

                    ea8e7f24ab823ad710ce079c86c40aa957353a00d2775732c23e31be88a10d212e974c4691279aa86016c4660f5795febf739a15207833df6ed964a9ed99d618

                  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                    Filesize

                    152B

                    MD5

                    f61fa5143fe872d1d8f1e9f8dc6544f9

                    SHA1

                    df44bab94d7388fb38c63085ec4db80cfc5eb009

                    SHA256

                    284a24b5b40860240db00ef3ae6a33c9fa8349ab5490a634e27b2c6e9a191c64

                    SHA512

                    971000784a6518bb39c5cf043292c7ab659162275470f5f6b632ea91a6bcae83bc80517ceb983dd5abfe8fb4e157344cb65c27e609a879eec00b33c5fad563a6

                  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                    Filesize

                    6KB

                    MD5

                    40144339a31734f23e90b882e2df46d8

                    SHA1

                    15d2df5abbfc1569b0657b3d743ccd93e0e1ca88

                    SHA256

                    dc847bf566265ba38228d6be02aab19044c09b871ed0ccff3c54563bbd112688

                    SHA512

                    0fbc24ac7af7c7762b61df2854807dfb73770c92df2fc53d32b631b7a401b6768b73870482cbe127082569d37afd70d645dbe2603523ccfe5b5294b24dbcd1fa

                  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                    Filesize

                    5KB

                    MD5

                    1dc4ea1686fff330f71e19dbb8fdfedb

                    SHA1

                    91169f9d20d322240c376f9350ff48a5a41f55a7

                    SHA256

                    10c797bd85b9cf1aa83b7788b15128bc1de123552aee9c1c0a3448976f15e012

                    SHA512

                    5f390dd4a41d8f8fc999a3c7a8594958fe22c19d8fd0a4140675294a33e095fff873b846f3c15e164bb3260c6c3e711835f71ea98a79726295dd8375f26d5160

                  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

                    Filesize

                    10KB

                    MD5

                    9d5b103315946a9c6cc10d984285f19e

                    SHA1

                    502f9bc5ccda52bfd3fa460536b5c25caef035db

                    SHA256

                    9e82e6ad8a2c0ed5fe4b323ac0011c36e49ac2a7106f75d953fe20d7e7ab3625

                    SHA512

                    b837aa7e47da2a36318f5580a7733383262f7883395c7eaabb41765e40fb75da3f7bcb82daecb6a9015d4e640e5ebd086f1df27263073ab0e033ec175eda7a34

                  • C:\Users\Admin\AppData\Local\Temp\0E576EF6.bat

                    Filesize

                    65B

                    MD5

                    348cae913e496198548854f5ff2f6d1e

                    SHA1

                    a07655b9020205bd47084afd62a8bb22b48c0cdc

                    SHA256

                    c80128f51871eec3ae2057989a025ce244277c1c180498a5aaef45d5214b8506

                    SHA512

                    799796736d41d3fcb5a7c859571bb025ca2d062c4b86e078302be68c1a932ed4f78e003640df5405274364b5a9a9c0ba5e37177997683ee7ab54e5267590b611

                  • C:\Users\Admin\Desktop\README_TO_DECRYPT.html

                    Filesize

                    7KB

                    MD5

                    c8d7398e5ea9644185cfaf954dc8fcbe

                    SHA1

                    a515c59cffaeccd31d01da08db206bc39363c840

                    SHA256

                    c1d5822812e50fbff35504736f6ab7e7922b898c05162811d267e23fdeb0c9c4

                    SHA512

                    5ec2bdd152cecc6015c6825b4787a5925c9403226cb57c59d4d770264d67b50627ea53483ff752e04729df55a011e2f2459b79a9922c94add9892ea2036d795f