Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcb2b1ae6bd00740…

MALICIOUS

PDF

40.9 KB Created: 2021-05-17 14:39:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 262d4393098151496998c3f18806a862 SHA-1: 28a773776966db359c1d21d126c35f9c1ffc579f SHA-256: bcb2b1ae6bd00740a351e9d5d3ba186c4f6a4561e3e0fcdc1d2b288a5b9d7a7b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains multiple links to malicious redirectors and other PDF files, masquerading as game hacks and cheats. The primary lure is the promise of in-game advantages, designed to trick users into clicking malicious links. The document body and heuristics indicate a clear intent to redirect users to potentially harmful content.

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/master-coin-hack-mod-game-hack In PDF document text
    • http://unionmusicaldebenidorm.com/images/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/minecraft-java-free_GM479516143.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/roblox-free-wings_GM431946152.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/play-coin-master_GM406889139.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/coin-master-viking-quest-hack_GM406889139.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/coin-master-free-spins-iphone-2021_GM406889139.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/coin-master-unlimited-spin-link_GM406889139.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/do-robux-generators-work_GM431946152.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/coin-master-hack-twitter_GM406889139.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/minecraft-pc-free_GM479516143.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/coin-master-32-mod-hack-unlimited_GM406889139.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/free-robux-games-on-roblox_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_003_off00004690.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4690 24496 bytes
SHA-256: 7ff00b79a888462b190388e91fa428522feb5e4de7ef6716307aa0622ec0e43e
font_01_sfnt_off00007e54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E54 17888 bytes
SHA-256: 79663f5c6e364485b04b83db578590d29b6e1ee38eddb5c45b054f63581374ad

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