Malicious PDF — malware analysis report

Static analysis result for SHA-256 a00e14950cc5b9d2…

MALICIOUS

PDF

34.4 KB Created: 2021-07-03 11:55:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 50f786ea4dee3774a796ba5ec3b28e98 SHA-1: 1347c0bdde1097ea66ae13a8b2dfdfb37bec5976 SHA-256: a00e14950cc5b9d29d51568ccbc83835a4629cf77814a6b351f0a5ecaf9e34a4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-confidence heuristic indicating it links to a game hack lure. The document body and embedded URLs confirm this, pointing to a URL designed to trick users into downloading or accessing exploits for games like Coin Master and Roblox. No scripts were extracted, but the primary function appears to be redirecting users to malicious content.

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/406889139/android-coin-master-hack-2021-game-hack PDF link annotation
    • https://fib.ub.ac.id/sac/repository/free-robux-offers_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/where-to-get-robux_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/best-site-for-free-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/coin-master-free-redeem-code_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-spin-coin-master-twitter_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-hacker-tucoon_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/how-to-hack-coin-master-spin_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-cheat-tool-download-pc_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/https-iosgodscom-topic-20214coinmasterhack_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/twitter-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-shred-money-hack_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/https-pastebincom-incrible-hack-de-robux_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-card-codes-deutsch_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-booga-booga-fly-hack-may-26_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/collect-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-givway_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003044.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3044 22508 bytes
SHA-256: 56fc9702590922c8fd9e7cb9b9bef273f2ff1db5981330e603797e94e1833442
font_01_sfnt_off00006276.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6276 18580 bytes
SHA-256: c5601fa14ed04fb4f740bcfe67723d3d4875281b2c27be26dd2f79fc337f532e

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