General

  • Target

    05022025_1617_SocialSecurityStatement.pdf.zip

  • Size

    938KB

  • Sample

    250205-trmfqatpew

  • MD5

    d2fb835209e2e5160ed6cc2781455de1

  • SHA1

    df6b40ac3d402ed9fcba3bc456cd0f80bc8988c3

  • SHA256

    0d73ed2420afde35f1e9687c44c5fe9531be28e6c2fad944dc416014012dfd9e

  • SHA512

    ff39ada6c83528ed622be599311d60225a98273e9a3516232099674860087b1f024983dfbd3be303f25b44b8f7f8e5f0749c89584c899c2bb111685630c4a82b

  • SSDEEP

    24576:zc0/8/UDCOClotg4mhUs6Nj+aoxCAYWNiQQUM:w0/8YLtgPiCaorNlQP

Malware Config

Extracted

Family

xworm

Version

5.0

C2

87.121.86.171:7756

Mutex

dvJVokD5QYSVhziW

Attributes
  • install_file

    USB.exe

aes.plain

Targets

    • Target

      526231515215api2535forms.exe

    • Size

      1002KB

    • MD5

      eda4d61a350236937e265ed2c2e2e666

    • SHA1

      382707fd6300a57d955da0c5333f41eb12d67073

    • SHA256

      2eade1e13548c453abaf7f320aa91034d849c2adbba8ddced41fccb27d8cde1c

    • SHA512

      941a99ce65f667f8588e9c9ed2116567b08db2b9c64927e1cf13579b4ac14f19eae40c350df0f46a43a372946ac6bb3a6841873f37a8909bac73caafc42e3658

    • SSDEEP

      24576:QN5CyziiwG6B/8ZKDCOQhoRg8mhUsiNj+AoxCUYMN+QQLZ:w5CAi3G6B/8EXRgriIAoLNZQ1

    • Detect Xworm Payload

    • Guloader family

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Loads dropped DLL

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Target

      $PLUGINSDIR/System.dll

    • Size

      12KB

    • MD5

      cff85c549d536f651d4fb8387f1976f2

    • SHA1

      d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

    • SHA256

      8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

    • SHA512

      531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

    • SSDEEP

      192:Zjvco0qWTlt70m5Aj/lQ0sEWD/wtYbBHFNaDybC7y+XBz0QPi:FHQlt70mij/lQRv/9VMjzr

    Score
    3/10

MITRE ATT&CK Enterprise v15

Tasks