Malicious PDF — malware analysis report

Static analysis result for SHA-256 acd61427a0dd5b06…

MALICIOUS

PDF

33.9 KB Created: 2021-07-02 00:51:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: bb7687aa4dd957bbde78f1f60f4a4701 SHA-1: 0c8f89a836f23996f1323d95ff3a6a0c9feb5101 SHA-256: acd61427a0dd5b06a713bfae525c14209219909e8a182fdf323e68b39ffa8aea
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 0.9980

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 http://netcdn.co/app/431946152/batu-kolukfaki-free-robux-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info/repository/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-hack-no-download_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-becomming-rich-free_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/hack-coin-master-343-apk_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/1-billion-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/pokemon-go-free-stuff_GM1094591345.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-get-robux-for-free-on-ipad-easy-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-roblox-accounts-pastebin-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-fly-hack-in-roblox-deathrun_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/dragon-ball-fury-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-support_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/minecraft-launcher-download-free_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-spins-coin-master-links-thursday-november-28-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-spin-link-list_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/royale-high-school-roblox-free-play_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-pants-roblox-boy_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/heroes-online-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/minecraft-hacks-ps4_GM479516143.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
font_00_sfnt_off00002f25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F25 21792 bytes
SHA-256: 23ae1c1a8e6847484fef228570e5cf40f386aa3ebf3045781e7ddffeed411b95
font_01_sfnt_off00005f30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F30 19184 bytes
SHA-256: 0d1be8c23a47894a6f1de541963277aba66d282c2e52b801559ea310ce5a0182

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