Malicious PDF — malware analysis report

Static analysis result for SHA-256 179d41063f8ea903…

MALICIOUS

PDF

43.2 KB Created: 2021-05-19 20:03:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 40821f44c8afd9f8f13d6c6746d2118d SHA-1: 4f8413064f6e02471a42ccccf35e6c82c410d54f SHA-256: 179d41063f8ea90317f57a07c8f34237f4f35b290347f7bf204466d9356748c4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document contains embedded URLs and a DOC BODY that explicitly mentions game hacks and cheats, aiming to trick users into downloading malicious content. The presence of a 'password archive lure' heuristic suggests the downloaded payload may be encrypted, further indicating malicious intent. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/431946152/roblox-rape-hack-game-hack PDF link annotation
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/free-spins-coin-master-2021-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/coin-master-hack-cheat-engine_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/coin-master-tricks_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/coin-master-free-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/robux-free-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/free-game-pack-with-google-play-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/coin-master-game_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/how-to-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ac9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AC9 26416 bytes
SHA-256: 9503b613e69b3b9d37a67fa19486768d879d91256a4f92fd534dcff7beceafdc
font_01_sfnt_off0000860e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x860E 18356 bytes
SHA-256: 8a1fe0c7231104fca4fa627868bae52978e90e92fc8d209bfe3611444447d27b

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