Malicious PDF — malware analysis report

Static analysis result for SHA-256 03862783956763f8…

MALICIOUS

PDF

27.9 KB Created: 2021-05-10 19:33:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 12569f7a0975dcd45192837927382b2a SHA-1: 8bf3a0850183114d34e113515dbd7404b316219e SHA-256: 03862783956763f832bdedcd9aae70d7408e885b1116b6dda685c2c782103818
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 0.9747

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.xyz/app/431946152/hacking-apps-for-roblox-game-hack PDF link annotation
    • http://pacatuamigo.com/images/coin-master-claim-spins_GM406889139.pdfIn PDF document text
    • http://pacatuamigo.com/images/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • http://pacatuamigo.com/images/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • http://pacatuamigo.com/images/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://pacatuamigo.com/images/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://pacatuamigo.com/images/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • http://pacatuamigo.com/images/best-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://pacatuamigo.com/images/minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://pacatuamigo.com/images/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
    • http://pacatuamigo.com/images/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://pacatuamigo.com/images/how-to-get-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • http://pacatuamigo.com/images/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://pacatuamigo.com/images/free-spins-on-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://pacatuamigo.com/images/free-roblox-templates_GM431946152.pdfIn PDF document text
    • http://pacatuamigo.com/images/roblox-fun-com-robux_GM431946152.pdfIn PDF document text
    • http://pacatuamigo.com/images/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://pacatuamigo.com/images/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://pacatuamigo.com/images/coin-master-spin-rewards_GM406889139.pdfIn PDF document text
    • http://pacatuamigo.com/images/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • http://pacatuamigo.com/images/coin-master-free-spins-daily-link-game-mod_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
font_00_sfnt_off00002056.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2056 19088 bytes
SHA-256: f9851a1ff84c395918a2c81e47845d95fca04cddd55228204f7623be248ba544
font_01_sfnt_off00004823.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4823 18932 bytes
SHA-256: a12a900017875743d46ad83be25c63e25fa00e3014bd6d438c4b8f248ab77b0b

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