Malicious PDF — malware analysis report

Static analysis result for SHA-256 2655f6b14207efcb…

MALICIOUS

PDF

34.7 KB Created: 2021-06-20 03:23:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: c02b4f5a5a505f80a85e325f60b9e4f0 SHA-1: 52e2786eba24d4b75fdca6d3afd4e6e9a231c340 SHA-256: 2655f6b14207efcb11d1849ceb4d838b6cdf7922531769dfd15dbef77d4a17ec
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising game hacks and free spins. The primary lure identified is 'Escaping Handcuffs Cheat Jailbreak Roblox' pointing to http://netcdn.co/app/431946152/escaping-handcuffs-cheat-jailbreak-roblox-game-hack. This indicates a social engineering tactic to trick users into visiting a potentially harmful site, likely for further malware delivery or exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/escaping-handcuffs-cheat-jailbreak-roblox-game-hack In PDF document text
    • http://library.stikessuakainsan.ac.id/repository/50-free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/minecraft-hacker-mask_GM479516143.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/legit-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/coin-master-free-spin-app-2021_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-inject-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/rewardex-robux_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/wurst-115-2_GM479516143.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/every-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/minecraft-mojang-free_GM479516143.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/free-spin-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/hack-game-plus-com-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/coin-master-70-spin-link-today_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/coin-master-hack-com_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/coin-master-free-spin-link-daily_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/roblox-hacks-2021_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
font_00_sfnt_off00002fab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FAB 22124 bytes
SHA-256: 53bd0db48b64fe912be8beb7d6d5b1d81d9d04867f24ce99b13b347092cc9ef7
font_01_sfnt_off000060c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C3 19700 bytes
SHA-256: 095bb99d950281f4cae748745358f80de13e753673fa31766ccac29ee7fa21b9

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