Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed132bdcc59d61ce…

MALICIOUS

PDF

46.7 KB Created: 2021-05-10 18:58:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 0795c0604b24bd9b41d8079bc65ff312 SHA-1: f67698ebc945d2446be8203cfbe79a801acc23ea SHA-256: ed132bdcc59d61ce2d00cc5a99fa1d12f0d56ed365be3c956e93ad0ee54c92fb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically promoting 'game hacks' and 'free generators'. The primary redirector identified is https://netcdn.xyz/app/479516143/wurst-game-hack, which is designed to lure users into downloading potentially malicious content or visiting further compromised sites. The document body and embedded URLs strongly suggest a social engineering tactic to trick users into clicking these links, likely leading to malware download or further phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/479516143/wurst-game-hack In PDF document text
    • http://www.readandenjoy.ae/userfiles/files/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/coin-master-online-hack-link_GM406889139.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/will-minecraft-ever-be-free_GM479516143.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/how-to-get-more-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/coin-master-card-collection-hack-apk_GM406889139.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/coin-master-free-spins-and-coins-for-iphone_GM406889139.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/get-more-robux_GM431946152.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/download-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/roblox-imagine_GM431946152.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/como-hackear-el-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/coin-master-free-codes_GM406889139.pdfIn PDF document text
    • http://www.readandenjoy.ae/userfiles/files/coin-master-hack-cydia_GM406889139.pdfIn PDF document text
    • https://playhack.in/minecraftIn PDF document text
    • https://education.minecraftIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b6f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B6F 29416 bytes
SHA-256: c79c36dd53a8fa7e1e22a06e19f71e3fa7c0ba0db43aee263bee7b2670b5d741
font_01_sfnt_off00008ce4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CE4 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00009696.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9696 17556 bytes
SHA-256: c7eba0d35d3482de39ce9cd640884e3a275f5f00d67f8fb5d6d0debc1aa3211b

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