Analysis

  • max time kernel
    151s
  • max time network
    71s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 00:19

General

  • Target

    b9964f3110010e84048c0574f2461ca0bd876f0172a99895dc0e22eff5ee28f1.exe

  • Size

    224KB

  • MD5

    271b8ed644e1a0d7174656cb92043a20

  • SHA1

    e746d5103325e5e42f1ff9440630cc90f0e1562d

  • SHA256

    b9964f3110010e84048c0574f2461ca0bd876f0172a99895dc0e22eff5ee28f1

  • SHA512

    68075c200a99efbe0410e25be0e0c6a5ea6cca355585ed61e3fb77285a36a9a570faae1ae810b1da63b799fe6763540e97d1406f04b292ca0f864333eb932ce1

  • SSDEEP

    3072:hiYc7aWbqDImDrT+UvtkvnNBLieMyiayNe2XKrJlZmNlDY:hFAuImDrT+U1QtMyiaO6mS

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 54 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\b9964f3110010e84048c0574f2461ca0bd876f0172a99895dc0e22eff5ee28f1.exe
    "C:\Users\Admin\AppData\Local\Temp\b9964f3110010e84048c0574f2461ca0bd876f0172a99895dc0e22eff5ee28f1.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:1760
    • C:\Users\Admin\vuulec.exe
      "C:\Users\Admin\vuulec.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:612

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Hidden Files and Directories

1
T1158

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Hidden Files and Directories

1
T1158

Modify Registry

2
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\vuulec.exe
    Filesize

    224KB

    MD5

    11de8a98d0497f0a5a467f4ac7be740f

    SHA1

    da3c87831b39b008de5743d39c026a41cb1b4743

    SHA256

    3bd752d7b55462772e2578ba2eefb00d09022c6b3f7c5237c7cda24209fe8217

    SHA512

    1cca963f6f8523603aa71158f29ba4ca3b81c2181b233e425db6be0526025a6b0f7f7858f239438575424e6464d568804ea7c004d7d4ce5faee5b49275127dee

  • C:\Users\Admin\vuulec.exe
    Filesize

    224KB

    MD5

    11de8a98d0497f0a5a467f4ac7be740f

    SHA1

    da3c87831b39b008de5743d39c026a41cb1b4743

    SHA256

    3bd752d7b55462772e2578ba2eefb00d09022c6b3f7c5237c7cda24209fe8217

    SHA512

    1cca963f6f8523603aa71158f29ba4ca3b81c2181b233e425db6be0526025a6b0f7f7858f239438575424e6464d568804ea7c004d7d4ce5faee5b49275127dee

  • \Users\Admin\vuulec.exe
    Filesize

    224KB

    MD5

    11de8a98d0497f0a5a467f4ac7be740f

    SHA1

    da3c87831b39b008de5743d39c026a41cb1b4743

    SHA256

    3bd752d7b55462772e2578ba2eefb00d09022c6b3f7c5237c7cda24209fe8217

    SHA512

    1cca963f6f8523603aa71158f29ba4ca3b81c2181b233e425db6be0526025a6b0f7f7858f239438575424e6464d568804ea7c004d7d4ce5faee5b49275127dee

  • \Users\Admin\vuulec.exe
    Filesize

    224KB

    MD5

    11de8a98d0497f0a5a467f4ac7be740f

    SHA1

    da3c87831b39b008de5743d39c026a41cb1b4743

    SHA256

    3bd752d7b55462772e2578ba2eefb00d09022c6b3f7c5237c7cda24209fe8217

    SHA512

    1cca963f6f8523603aa71158f29ba4ca3b81c2181b233e425db6be0526025a6b0f7f7858f239438575424e6464d568804ea7c004d7d4ce5faee5b49275127dee

  • memory/612-59-0x0000000000000000-mapping.dmp
  • memory/1760-56-0x0000000076181000-0x0000000076183000-memory.dmp
    Filesize

    8KB