Analysis

  • max time kernel
    15s
  • max time network
    22s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    05-05-2021 11:07

General

  • Target

    5936c25c_by_Libranalysis.exe

  • Size

    107KB

  • MD5

    5936c25cca9017437d5cb9b6d0fa0cbe

  • SHA1

    225db09e02d2b16cfb0b5a1b2b7d4f6d9848d809

  • SHA256

    2a6987c08b3f5aa3dd595fc684af68222accf71d5acd332623e830bd7657011f

  • SHA512

    34a4e9555390d61be6fbe8f52862cfef979431b5b98535595b6f5e6341f19eb060e024fcf408b81138c99a63739eda7411a80b2adee00ed5352ef1944ab27775

Score
8/10

Malware Config

Signatures

  • ASPack v2.12-2.42 4 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5936c25c_by_Libranalysis.exe
    "C:\Users\Admin\AppData\Local\Temp\5936c25c_by_Libranalysis.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:280
    • C:\Users\Admin\AppData\Local\Temp\adFuvY.exe
      C:\Users\Admin\AppData\Local\Temp\adFuvY.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:1468
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\4b5f4d50.bat" "
        3⤵
          PID:1748

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\4b5f4d50.bat
      MD5

      26b000ffa6ca683fbb103736cb236831

      SHA1

      cb7d8bf4dffd7d3f164e6921a6f3e6824f811334

      SHA256

      e7e555706ae6d657fe55d14a6f4c8085c47c0fc9739c8262dc23dd59fa63f00b

      SHA512

      accdf0151d5b2d4d14b5badc93ee3982183151a878f11d6b35dcafab50dfe4fe96bfc811605d29346c6883f1ee53d8c90502cfbfa4fc8b1d83a2be6c28a5fd86

    • C:\Users\Admin\AppData\Local\Temp\adFuvY.exe
      MD5

      56b2c3810dba2e939a8bb9fa36d3cf96

      SHA1

      99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

      SHA256

      4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

      SHA512

      27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

    • C:\Users\Admin\AppData\Local\Temp\adFuvY.exe
      MD5

      56b2c3810dba2e939a8bb9fa36d3cf96

      SHA1

      99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

      SHA256

      4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

      SHA512

      27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

    • \Users\Admin\AppData\Local\Temp\adFuvY.exe
      MD5

      56b2c3810dba2e939a8bb9fa36d3cf96

      SHA1

      99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

      SHA256

      4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

      SHA512

      27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

    • \Users\Admin\AppData\Local\Temp\adFuvY.exe
      MD5

      56b2c3810dba2e939a8bb9fa36d3cf96

      SHA1

      99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

      SHA256

      4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

      SHA512

      27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

    • memory/1468-62-0x0000000000000000-mapping.dmp
    • memory/1468-64-0x0000000075041000-0x0000000075043000-memory.dmp
      Filesize

      8KB

    • memory/1748-66-0x0000000000000000-mapping.dmp