Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c02973d15b9cfa0…

MALICIOUS

PDF

34.9 KB Created: 2021-07-05 01:20:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 517e215032966d51a1ad714dff1b8ac0 SHA-1: 9e57c48db94dd7ac38a07cd81e54ffc98e0322f1 SHA-256: 1c02973d15b9cfa05609e037bce9205a5e64527945330d8060f6b1a8baf51903
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link and text related to 'Free Robux Hack 2021', directly linking to a suspicious URL. This indicates a social engineering lure designed to trick users into visiting a potentially malicious site. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to redirect users to the identified URL, likely for further exploitation or malware delivery.

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-hack-2021-youtube-game-hack PDF link annotation
    • https://library.sman1berau.sch.id/repository/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-diamond-hack_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/rbx-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-free-spin-2912-2021_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-roblox-exploits_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-hack-cheat-engine-jailbreak_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-app-hacks_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-adopt-me-free-pets_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/abd-roblox_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-free-robux-2021-2021-patched_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/inappropriate-roblox-games_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/robux-hack-no-subscribin-to-work_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
stream_002_off00003096.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3096 22368 bytes
SHA-256: ad345d41b51aa754f8cc971df25c123908791ad48f85f9132071df8197e5f8b2
font_01_sfnt_off00006285.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6285 19368 bytes
SHA-256: fa08ae7ae2ee7c1bb8a42195b7657fc49743db02d46b3c8c36a6c592d4830ccc

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