Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc6c0a8e315604e2…

MALICIOUS

PDF

35.2 KB Created: 2021-07-04 17:24:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: b495b14ed8b5e192737cdcef0ba01f72 SHA-1: 084cc707e37651b81e07b052192f7ec14b5fec22 SHA-256: dc6c0a8e315604e2009a11d24042c6b879e6e3f98406cc75f29f6f0dd90d7603
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks, specifically for Coin Master, directing users to a suspicious URL. The ML classifier strongly indicates maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to a malicious site, likely for credential harvesting 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/406889139/how-to-hack-coin-master-spin-game-hack PDF link annotation
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/how-to-create-good-skin-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-heaven-daily-free-spins-and-coins-links_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/horrnoclip-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-gamepass-roblox_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-free-cards-hack_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/roblox-hints-and-cheats_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-100-spin_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/roblox-speed-hack-jailbreak_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/pokemon-go-free-movement_GM1094591345.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/http-blackgamesus-coinmasterhack_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/domino-crown-roblox-free_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/earn-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/pubg-uc-via-login_GM1330123889.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-invite-friends-free-spins_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-hack-tool-for-pc_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
stream_002_off00003370.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3370 22876 bytes
SHA-256: 8e1c6b18acde0b3249de19c86611dcd6c4a8e7d08bd1d313e93ef1940fc85c7f
font_01_sfnt_off0000669a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x669A 18344 bytes
SHA-256: d731dcfdb78098c65969a4271b6873fd6091dee75614696ef1f1c6e4783d348a

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