Analysis

  • max time kernel
    190s
  • max time network
    75s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    05-12-2022 23:20

General

  • Target

    a871f746c9a0ac0bc359b01d234cf8369d0a1fd95365d0c7ef40e0d4342d573b.exe

  • Size

    148KB

  • MD5

    488c9654f0fb0b3cb2f0f321c28a1201

  • SHA1

    9aae83f4ed5fa1a5bc80c8d7931ff0597e331461

  • SHA256

    a871f746c9a0ac0bc359b01d234cf8369d0a1fd95365d0c7ef40e0d4342d573b

  • SHA512

    3c83202eaefbd0034b53ea45168b4682ca7dc0400e5fe890e3fb6ffb26de60272778685b78fd195a52450b2008036ae4072f71d3e6cfe179f14580f52994e416

  • SSDEEP

    3072:DiFrQh4mRpDGq7At/yRWr2wA36nbMUq8hFOdhIOTE5j4oQ2:uFkh96F90Wf7nJPwdUd

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 49 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a871f746c9a0ac0bc359b01d234cf8369d0a1fd95365d0c7ef40e0d4342d573b.exe
    "C:\Users\Admin\AppData\Local\Temp\a871f746c9a0ac0bc359b01d234cf8369d0a1fd95365d0c7ef40e0d4342d573b.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Users\Admin\jiuoj.exe
      "C:\Users\Admin\jiuoj.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:1264

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\jiuoj.exe

    Filesize

    148KB

    MD5

    7b0913b72800ea88493f88dfc069edee

    SHA1

    4c40aeb308dfb1b192419b47eeb83e42adddeb94

    SHA256

    dc58184f76cce06b6dca2a32de5a833d47b8968593da6c9b2fdce3ffec63fe4b

    SHA512

    df43c9e781757b79688cef6bc57856e30dafca6caadbcec803e8e3d003389fe458a752e6b8c8f80215343b7fa6afce8331743f9de42b13be5409cc4b140541a5

  • C:\Users\Admin\jiuoj.exe

    Filesize

    148KB

    MD5

    7b0913b72800ea88493f88dfc069edee

    SHA1

    4c40aeb308dfb1b192419b47eeb83e42adddeb94

    SHA256

    dc58184f76cce06b6dca2a32de5a833d47b8968593da6c9b2fdce3ffec63fe4b

    SHA512

    df43c9e781757b79688cef6bc57856e30dafca6caadbcec803e8e3d003389fe458a752e6b8c8f80215343b7fa6afce8331743f9de42b13be5409cc4b140541a5

  • \Users\Admin\jiuoj.exe

    Filesize

    148KB

    MD5

    7b0913b72800ea88493f88dfc069edee

    SHA1

    4c40aeb308dfb1b192419b47eeb83e42adddeb94

    SHA256

    dc58184f76cce06b6dca2a32de5a833d47b8968593da6c9b2fdce3ffec63fe4b

    SHA512

    df43c9e781757b79688cef6bc57856e30dafca6caadbcec803e8e3d003389fe458a752e6b8c8f80215343b7fa6afce8331743f9de42b13be5409cc4b140541a5

  • \Users\Admin\jiuoj.exe

    Filesize

    148KB

    MD5

    7b0913b72800ea88493f88dfc069edee

    SHA1

    4c40aeb308dfb1b192419b47eeb83e42adddeb94

    SHA256

    dc58184f76cce06b6dca2a32de5a833d47b8968593da6c9b2fdce3ffec63fe4b

    SHA512

    df43c9e781757b79688cef6bc57856e30dafca6caadbcec803e8e3d003389fe458a752e6b8c8f80215343b7fa6afce8331743f9de42b13be5409cc4b140541a5

  • memory/1724-56-0x00000000757B1000-0x00000000757B3000-memory.dmp

    Filesize

    8KB