Analysis

  • max time kernel
    135s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10-en
  • submitted
    03-09-2021 09:04

General

  • Target

    a7259b65a4acac8f1ef4a5cfdced39a996e97450944ac90a306b5ea71b727cc8.exe

  • Size

    1001KB

  • MD5

    a0063f8960f976b6a56ce2831b34ae19

  • SHA1

    bafde121d67f8359ddebaf5c13ab86eceb6dccc7

  • SHA256

    a7259b65a4acac8f1ef4a5cfdced39a996e97450944ac90a306b5ea71b727cc8

  • SHA512

    f79fd079ce9a43e3e36e3e1ee12ca06d17ad00e6624d2d22a67bee0d615cdb447b1e12aa074d57bbc4ba9558558c670c3d0421b1aa0cd468686616861717ef6b

Score
10/10

Malware Config

Signatures

  • Ammyy Admin

    Remote admin tool with various capabilities.

  • AmmyyAdmin Payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a7259b65a4acac8f1ef4a5cfdced39a996e97450944ac90a306b5ea71b727cc8.exe
    "C:\Users\Admin\AppData\Local\Temp\a7259b65a4acac8f1ef4a5cfdced39a996e97450944ac90a306b5ea71b727cc8.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4000
    • C:\Users\Admin\AppData\Local\Temp\budha.exe
      "C:\Users\Admin\AppData\Local\Temp\budha.exe"
      2⤵
      • Executes dropped EXE
      PID:2628

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\budha.exe

    MD5

    ae9bf34c3d5342386729bdef459a271b

    SHA1

    0663c60b0ab1149dc79517917cda8f26803f289d

    SHA256

    074e47886359301c80d6e73ade27a14fa65f58dde03825bc70cc8a3a3dcdca4a

    SHA512

    bf3ba85927c343c313acd1cba28ffb6ee8d99a6e445ebd23a9f1984453d0d70e69b262c06ebc42c422389612ef262b76d3a62688a03553af34364863085da1bb

  • C:\Users\Admin\AppData\Local\Temp\budha.exe

    MD5

    ae9bf34c3d5342386729bdef459a271b

    SHA1

    0663c60b0ab1149dc79517917cda8f26803f289d

    SHA256

    074e47886359301c80d6e73ade27a14fa65f58dde03825bc70cc8a3a3dcdca4a

    SHA512

    bf3ba85927c343c313acd1cba28ffb6ee8d99a6e445ebd23a9f1984453d0d70e69b262c06ebc42c422389612ef262b76d3a62688a03553af34364863085da1bb

  • memory/2628-115-0x0000000000000000-mapping.dmp

  • memory/2628-120-0x0000000002250000-0x0000000002251000-memory.dmp

    Filesize

    4KB

  • memory/2628-121-0x00000000025A0000-0x00000000029A0000-memory.dmp

    Filesize

    4.0MB

  • memory/4000-118-0x0000000000850000-0x0000000000851000-memory.dmp

    Filesize

    4KB

  • memory/4000-119-0x0000000002620000-0x0000000002A20000-memory.dmp

    Filesize

    4.0MB