Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fa2e843a228b410…

MALICIOUS

PDF

35.2 KB Created: 2021-07-04 11:48:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 689dd5c12398718878b19feb3a46d228 SHA-1: a9cc1c8b210d4f945599c28d287fc89cdbbf128d SHA-256: 7fa2e843a228b41056413b1805556262a46c4c2f4712a98160e4adeb0c53a0f2
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.tw/app/431946152/free-robux-gift-card-generator-game-hack PDF link annotation
    • http://muslib.unmus.ac.id//repository/lazy-blocks-com-free-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-minecraft-website_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-money-cheat-engine_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/free-spins-on-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-exploit-roblox_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-nike-roblox-shirt_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-xript_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/hack-coin-master-android-2021_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/blox-best-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/how-to-get-free-skins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-teasure-hunt-simulator-hack_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-hack-roblox-to-get-money_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-blogspot-free-spins_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-robux-money-hack-tool-generator_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-is-going-to-be-hacked-march-18th_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/hack-any-roblox-robux_GM431946152.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_off0000333d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x333D 22188 bytes
SHA-256: 123fbdc6bb204aa68459a1bdabfe0450bc3c10d3336c572a29b640a168161c90
font_01_sfnt_off0000647f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647F 19112 bytes
SHA-256: da31b86bd70513bc950f6f3ebef22a0e782d6f2bb4858530ba27cd7b56ad3104

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