Analysis

  • max time kernel
    148s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    15-02-2022 14:52

General

  • Target

    26052e47598d4c3642f18f72b661166ca7cf5c74490f9d9e8f2beca5fce1b680.exe

  • Size

    3.1MB

  • MD5

    e02a6d825992d0532b21584beeb2e91a

  • SHA1

    375ddee62c5598026fcb1420dba4273e95cabb8d

  • SHA256

    26052e47598d4c3642f18f72b661166ca7cf5c74490f9d9e8f2beca5fce1b680

  • SHA512

    80bfeb85caa5244d262684d21f02b5ccc2c206b670ae88628badf3104d90c907d211930bf3b7620ad61b4b3b1fedcd9a76c35556ed321766dbfb96cfa95621ba

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Blocklisted process makes network request 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Themida packer 5 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Drops file in Windows directory 10 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 2 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\26052e47598d4c3642f18f72b661166ca7cf5c74490f9d9e8f2beca5fce1b680.exe
    "C:\Users\Admin\AppData\Local\Temp\26052e47598d4c3642f18f72b661166ca7cf5c74490f9d9e8f2beca5fce1b680.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:732
    • C:\Users\Admin\AppData\Local\Temp\geason\enmesh.exe
      "C:\Users\Admin\AppData\Local\Temp\geason\enmesh.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • Suspicious use of WriteProcessMemory
      PID:5072
      • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
        "C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe"
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        • Suspicious behavior: AddClipboardFormatListener
        PID:2080
    • C:\Users\Admin\AppData\Local\Temp\geason\flaviavp.exe
      "C:\Users\Admin\AppData\Local\Temp\geason\flaviavp.exe"
      2⤵
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Checks computer location settings
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Checks processor information in registry
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5036
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\bkvpdhbhtrca.vbs"
        3⤵
          PID:2104
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\jenyyvo.vbs"
          3⤵
          • Blocklisted process makes network request
          PID:1852
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
      1⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:3016
    • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
      C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
      1⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:2744

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\103621DE9CD5414CC2538780B4B75751

      MD5

      54e9306f95f32e50ccd58af19753d929

      SHA1

      eab9457321f34d4dcf7d4a0ac83edc9131bf7c57

      SHA256

      45f94dceb18a8f738a26da09ce4558995a4fe02b971882e8116fc9b59813bb72

      SHA512

      8711a4d866f21cdf4d4e6131ec4cfaf6821d0d22b90946be8b5a09ab868af0270a89bc326f03b858f0361a83c11a1531b894dfd1945e4812ba429a7558791f4f

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\103621DE9CD5414CC2538780B4B75751

      MD5

      0eba55cd63e8d506b12a25c740c9ec49

      SHA1

      dd0c783cb618f98d163b850edae5c0f50ee463d0

      SHA256

      917315cde7163224e24bed6f36e950c38d725ba07020769a89f572613476d5fa

      SHA512

      353d04bb205cc7138d43bc4c996787b3137a5a3f0f9c40aceda6f7d31964209bc26405b8c54a87e0c0230df5354f224910fc9997be5a7c143ef4afc46389f43c

    • C:\Users\Admin\AppData\Local\Temp\bkvpdhbhtrca.vbs

      MD5

      e42078cfd0eda5b9618e5642aaf9185c

      SHA1

      837b437d767f26e280417fc933ba0fafc3eeb27e

      SHA256

      c31bf0ce789a9f340d94615e902651814fc5c1dce0768cd570e8c66ab797a1ae

      SHA512

      ac049d2438a5ec05e4132090e59f1b1171b190bb5e2079fcfeec35bfbf6119cb50fe3bdf55d04d7303c052940e11a6bf58517188f7fbfb024542e068db92fcb3

    • C:\Users\Admin\AppData\Local\Temp\geason\enmesh.exe

      MD5

      ccbc63bdca7c5436c81f32ccfae9456c

      SHA1

      1d4c3083166ef769f8f0e4296c9dc8b56b12ba8b

      SHA256

      2061a4ba324c47bdc95660d47a7ac6b624e01d847ff4170975e7deb28500525a

      SHA512

      37e1c1c0c922b8f1c1ed37a40b2d5e36f06f7b6d1138abf10b5b97482f9665c6515d837080e99a60251cba6935b087dc704914a7c82364aa2e3b9439ac2a8916

    • C:\Users\Admin\AppData\Local\Temp\geason\enmesh.exe

      MD5

      ccbc63bdca7c5436c81f32ccfae9456c

      SHA1

      1d4c3083166ef769f8f0e4296c9dc8b56b12ba8b

      SHA256

      2061a4ba324c47bdc95660d47a7ac6b624e01d847ff4170975e7deb28500525a

      SHA512

      37e1c1c0c922b8f1c1ed37a40b2d5e36f06f7b6d1138abf10b5b97482f9665c6515d837080e99a60251cba6935b087dc704914a7c82364aa2e3b9439ac2a8916

    • C:\Users\Admin\AppData\Local\Temp\geason\flaviavp.exe

      MD5

      9c8142047df3966d72ee64a59b467a29

      SHA1

      ad46a75ae11827c7776a41662abb7d0ba0d6e33a

      SHA256

      22ec2adbd53e81bd8f3a189b5c475ee7078ebe8f79af2771dd4a2d3cfc3fae9f

      SHA512

      4761aa85d4afec93f3b829fb9060d9f8af501674398c5764bcaf7bace8a35bef49028d326cbff956127c1600964cfb9a59b19973ca0bad0bcb91833b9bb33bc0

    • C:\Users\Admin\AppData\Local\Temp\geason\flaviavp.exe

      MD5

      9c8142047df3966d72ee64a59b467a29

      SHA1

      ad46a75ae11827c7776a41662abb7d0ba0d6e33a

      SHA256

      22ec2adbd53e81bd8f3a189b5c475ee7078ebe8f79af2771dd4a2d3cfc3fae9f

      SHA512

      4761aa85d4afec93f3b829fb9060d9f8af501674398c5764bcaf7bace8a35bef49028d326cbff956127c1600964cfb9a59b19973ca0bad0bcb91833b9bb33bc0

    • C:\Users\Admin\AppData\Local\Temp\jenyyvo.vbs

      MD5

      f8c84e40e0b7c5a3e5c1c5cb0c690e99

      SHA1

      6a74891e352355d0952f0c6fe9c64280edc1fe2a

      SHA256

      59f8a9d58ff735a42c5bc32710d4dc6b0232a626b8043189d96fe0212796b062

      SHA512

      b676e8a3c106307085713c571dd7de0d79b470db6a715e9da3888f51cec8bdde4d4541158abf52abdbb976e5b00a0b042b1524a25962e5c765680944544d8b98

    • C:\Users\Admin\AppData\Local\Temp\nsfA602.tmp\UAC.dll

      MD5

      adb29e6b186daa765dc750128649b63d

      SHA1

      160cbdc4cb0ac2c142d361df138c537aa7e708c9

      SHA256

      2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

      SHA512

      b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

    • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe

      MD5

      ccbc63bdca7c5436c81f32ccfae9456c

      SHA1

      1d4c3083166ef769f8f0e4296c9dc8b56b12ba8b

      SHA256

      2061a4ba324c47bdc95660d47a7ac6b624e01d847ff4170975e7deb28500525a

      SHA512

      37e1c1c0c922b8f1c1ed37a40b2d5e36f06f7b6d1138abf10b5b97482f9665c6515d837080e99a60251cba6935b087dc704914a7c82364aa2e3b9439ac2a8916

    • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe

      MD5

      ccbc63bdca7c5436c81f32ccfae9456c

      SHA1

      1d4c3083166ef769f8f0e4296c9dc8b56b12ba8b

      SHA256

      2061a4ba324c47bdc95660d47a7ac6b624e01d847ff4170975e7deb28500525a

      SHA512

      37e1c1c0c922b8f1c1ed37a40b2d5e36f06f7b6d1138abf10b5b97482f9665c6515d837080e99a60251cba6935b087dc704914a7c82364aa2e3b9439ac2a8916

    • memory/2080-154-0x0000000002600000-0x0000000002648000-memory.dmp

      Filesize

      288KB

    • memory/2080-153-0x00000000008C0000-0x00000000008C1000-memory.dmp

      Filesize

      4KB

    • memory/2080-146-0x000000000045A000-0x000000000045C000-memory.dmp

      Filesize

      8KB

    • memory/2080-151-0x0000000000400000-0x00000000004C5000-memory.dmp

      Filesize

      788KB

    • memory/2080-152-0x000000000045B000-0x000000000045C000-memory.dmp

      Filesize

      4KB

    • memory/3016-140-0x00000207FF990000-0x00000207FF9A0000-memory.dmp

      Filesize

      64KB

    • memory/3016-141-0x00000207826B0000-0x00000207826B4000-memory.dmp

      Filesize

      16KB

    • memory/3016-139-0x00000207FF930000-0x00000207FF940000-memory.dmp

      Filesize

      64KB

    • memory/5036-136-0x0000000000650000-0x0000000000D15000-memory.dmp

      Filesize

      6.8MB

    • memory/5036-135-0x0000000000650000-0x0000000000D15000-memory.dmp

      Filesize

      6.8MB

    • memory/5036-137-0x0000000000650000-0x0000000000D15000-memory.dmp

      Filesize

      6.8MB

    • memory/5036-147-0x0000000077B74000-0x0000000077B76000-memory.dmp

      Filesize

      8KB

    • memory/5072-145-0x0000000002390000-0x00000000023D8000-memory.dmp

      Filesize

      288KB

    • memory/5072-144-0x0000000000400000-0x00000000004C5000-memory.dmp

      Filesize

      788KB