Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c519616c6efc0fd…

MALICIOUS

PDF

47.1 KB Created: 2021-06-08 21:59:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 2044941c169acad620f3c9dff04d21d2 SHA-1: b2b546afb0bf3d37e517cc51687357bd84a685dd SHA-256: 5c519616c6efc0fd890be11aeaf3270a5833163a17ea3a0499e1b6deb2237415
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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.tw/app/431946152/cheat-engine-cheat-table-for-roblox-2021-windows-7-game-hack PDF link annotation
    • http://aviaprofsoyuz.info/images/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/minecraft-116-1-download_GM479516143.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/how-to-legally-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/coin-spin_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/minecraft-bedrock-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/coin-master-download-hack-ios_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/adfly-hack-robux_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-coin-master-spins-blogger_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/20210-robux_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/como-hackear-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/latest-free-spin-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004faf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FAF 28288 bytes
SHA-256: 0febebd986a56e979c0f3646dfdab407e4723174ca30dd8774ab9856669b513b
font_01_sfnt_off000090db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90DB 19848 bytes
SHA-256: 9f49d6211f54b77c3e25f60e1d913294eb184b939e92a3e3c193abdba9d24e5c

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