Analysis

  • max time kernel
    191s
  • max time network
    203s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-11-2022 21:44

General

  • Target

    f8b5e7240a9c8c9b5d10a9b878c83d11d6c13d09cb542233385d07e965f60ea2.exe

  • Size

    1.9MB

  • MD5

    a03ec5f7b5555dba80056a94fa8b79ae

  • SHA1

    e503d2361fb95520c7c76d27a24923afe05ad943

  • SHA256

    f8b5e7240a9c8c9b5d10a9b878c83d11d6c13d09cb542233385d07e965f60ea2

  • SHA512

    e808bcb73b21a4012bdcf8c743fcb3544e74e3d05dbe960edd7ea9d35a0ef80310b01425553110aa45d757bc11573cc9651d30f7b711b107a412c20c07f8c5e1

  • SSDEEP

    49152:SQihcR44MZgLTfE1Il1MZCUXj5pbnyNN7pGSYun+TC+Tu:liwfE1e+Pz5ZyEt2+++C

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops file in Program Files directory 50 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f8b5e7240a9c8c9b5d10a9b878c83d11d6c13d09cb542233385d07e965f60ea2.exe
    "C:\Users\Admin\AppData\Local\Temp\f8b5e7240a9c8c9b5d10a9b878c83d11d6c13d09cb542233385d07e965f60ea2.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2528
    • C:\Users\Admin\AppData\Local\Temp\3582-490\f8b5e7240a9c8c9b5d10a9b878c83d11d6c13d09cb542233385d07e965f60ea2.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\f8b5e7240a9c8c9b5d10a9b878c83d11d6c13d09cb542233385d07e965f60ea2.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:208
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://java.com/download
        3⤵
        • Enumerates system info in registry
        • Suspicious use of WriteProcessMemory
        PID:2808
        • 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=0xf8,0xfc,0x100,0xd4,0x104,0x7ff9aae246f8,0x7ff9aae24708,0x7ff9aae24718
          4⤵
            PID:652
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1484,6187397435415465130,1309855169773328883,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2148 /prefetch:2
            4⤵
              PID:4984
            • 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=1484,6187397435415465130,1309855169773328883,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2432 /prefetch:3
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:4220
            • 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=1484,6187397435415465130,1309855169773328883,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3000 /prefetch:8
              4⤵
                PID:4260
        • C:\Windows\System32\CompPkgSrv.exe
          C:\Windows\System32\CompPkgSrv.exe -Embedding
          1⤵
            PID:1660

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Persistence

          Change Default File Association

          1
          T1042

          Defense Evasion

          Modify Registry

          1
          T1112

          Discovery

          Query Registry

          2
          T1012

          System Information Discovery

          3
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\3582-490\f8b5e7240a9c8c9b5d10a9b878c83d11d6c13d09cb542233385d07e965f60ea2.exe
            Filesize

            1.9MB

            MD5

            73d0b2465f8395f6b1edee887d20f4ab

            SHA1

            a01571b415b833d5223df1cdf332b17c63ea4cec

            SHA256

            20c600fb21e5ed52ab2e88a6b69a39d63b6f1d609694d499b070caf917cfb72a

            SHA512

            fa1344d905a8819c1fc9286f7bc9e2462257569cc70bd47dd78830204e7d4a17d026cd4cdffd5aa83d92090a0b362da97ecec6b9b414e8dd5830e57ccb298759

          • C:\Users\Admin\AppData\Local\Temp\3582-490\f8b5e7240a9c8c9b5d10a9b878c83d11d6c13d09cb542233385d07e965f60ea2.exe
            Filesize

            1.9MB

            MD5

            73d0b2465f8395f6b1edee887d20f4ab

            SHA1

            a01571b415b833d5223df1cdf332b17c63ea4cec

            SHA256

            20c600fb21e5ed52ab2e88a6b69a39d63b6f1d609694d499b070caf917cfb72a

            SHA512

            fa1344d905a8819c1fc9286f7bc9e2462257569cc70bd47dd78830204e7d4a17d026cd4cdffd5aa83d92090a0b362da97ecec6b9b414e8dd5830e57ccb298759

          • \??\pipe\LOCAL\crashpad_2808_MJYZQJVAUYFMSSRN
            MD5

            d41d8cd98f00b204e9800998ecf8427e

            SHA1

            da39a3ee5e6b4b0d3255bfef95601890afd80709

            SHA256

            e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

            SHA512

            cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

          • memory/208-132-0x0000000000000000-mapping.dmp
          • memory/652-136-0x0000000000000000-mapping.dmp
          • memory/2808-135-0x0000000000000000-mapping.dmp
          • memory/4220-139-0x0000000000000000-mapping.dmp
          • memory/4260-142-0x0000000000000000-mapping.dmp
          • memory/4984-138-0x0000000000000000-mapping.dmp