Analysis

  • max time kernel
    6s
  • max time network
    10s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    04-05-2021 20:50

General

  • Target

    bb2274cecefab2f2736b245990fd9f001e54b41702f3e12caa85ffd5d9086704.exe

  • Size

    107KB

  • MD5

    0119cf1856dbe8af2f1f6c1d58460fa9

  • SHA1

    4a5096ec48ce1b0927f9c499a300e03cd5ca8687

  • SHA256

    bb2274cecefab2f2736b245990fd9f001e54b41702f3e12caa85ffd5d9086704

  • SHA512

    46ba1747dc1a48351709d3b9a84eb8bc77adb37ffc460dab31932d64ca7de6f48044b8fd1de3d31cf9729697a7f667dc20bcbb0578ab1b8a926bd3383fdfc392

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\bb2274cecefab2f2736b245990fd9f001e54b41702f3e12caa85ffd5d9086704.exe
    "C:\Users\Admin\AppData\Local\Temp\bb2274cecefab2f2736b245990fd9f001e54b41702f3e12caa85ffd5d9086704.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1200
    • C:\Users\Admin\AppData\Local\Temp\puIf.exe
      C:\Users\Admin\AppData\Local\Temp\puIf.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:1992
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\3eb8784e.bat" "
        3⤵
          PID:520

    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\3eb8784e.bat
      MD5

      a217cc9114c345c7b20f38eec6b33939

      SHA1

      9ed5bfba8bde4d07fb43566ef4f88d6c33f7afdc

      SHA256

      709ab6aceff529b99cf8ed8a195ac7b45abc46fa30f25f9f72448838518de0b6

      SHA512

      626ca97d28afa9e3a8980b89a430c493545253f40946d415c2b094aadb2a0c98bde082e789705e416ca485e6d06f6c14e299194b434430a0e892af1e84b7a82f

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

      56b2c3810dba2e939a8bb9fa36d3cf96

      SHA1

      99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

      SHA256

      4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

      SHA512

      27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

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

      56b2c3810dba2e939a8bb9fa36d3cf96

      SHA1

      99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

      SHA256

      4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

      SHA512

      27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

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

      56b2c3810dba2e939a8bb9fa36d3cf96

      SHA1

      99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

      SHA256

      4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

      SHA512

      27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

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

      56b2c3810dba2e939a8bb9fa36d3cf96

      SHA1

      99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

      SHA256

      4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

      SHA512

      27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

    • memory/520-66-0x0000000000000000-mapping.dmp
    • memory/1992-62-0x0000000000000000-mapping.dmp
    • memory/1992-64-0x00000000768B1000-0x00000000768B3000-memory.dmp
      Filesize

      8KB