Malicious PDF — malware analysis report

Static analysis result for SHA-256 eacaaf5385f1b446…

MALICIOUS

PDF

40.6 KB Created: 2021-05-15 09:38:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4a366a5af41496f7e3dcbe3c52ad494a SHA-1: d4a65eeef43f103e4eac5c2a84982a31d27ad7de SHA-256: eacaaf5385f1b4465c5e84d753a886c3aadcbc637a501c24524e6e6188280070
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as "free generator" or "game hack" lures. The document body and embedded URLs strongly suggest a phishing attempt to trick users into visiting malicious sites, likely for credential harvesting or further malware delivery. No scripts were extracted, but the presence of malicious links and the ML classifier's high confidence indicate a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/406889139/100-free-coin-master-spins-game-hack In PDF document text
    • http://kishplus.ir/images/minecraft-anarchy-server-no-hacks_GM479516143.pdfIn PDF document text
    • http://kishplus.ir/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://kishplus.ir/images/earnrobux_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://kishplus.ir/images/coin-master-free-gold_GM406889139.pdfIn PDF document text
    • http://kishplus.ir/images/how-to-get-robux-easy_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/coin-master-free-spin-game_GM406889139.pdfIn PDF document text
    • http://kishplus.ir/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://kishplus.ir/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/coin-master-free-spin-trick_GM406889139.pdfIn PDF document text
    • http://kishplus.ir/images/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/free-admin-roblox_GM431946152.pdfIn PDF document text
    • http://kishplus.ir/images/coin-master-free-spins-link-2021_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_003_off0000476d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x476D 23500 bytes
SHA-256: 6b0b76630d13e79a15c72d9edb9812a8ca218f84aa9c30cd1e70da3ce739ffb1
font_01_sfnt_off00007c61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C61 18164 bytes
SHA-256: 9d0cd5c2f7e80f3897417466f56f4718a74919a2dd6d9e748d2d2660ff396bc7

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