Malicious PDF — malware analysis report

Static analysis result for SHA-256 fca6eec244d5000b…

MALICIOUS

PDF

34.2 KB Created: 2021-06-29 17:29:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: e58217cdb17f3848208f0aab5cc40f9b SHA-1: d5a22e63eb63f829d9703db0d09a63112ab29305 SHA-256: fca6eec244d5000b029d5e438c58e9fd312bdc65598d01a4eae75bd5e9df239b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The document body and embedded URLs strongly suggest a lure for users seeking cheats or in-game currency, leading them to potentially harmful sites. No scripts were extracted, but the PDF's structure and embedded links are indicative of a phishing or scam attempt.

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/is-roblox-free-on-ipad-game-hack In PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/coin-master-hack-ios-no-verification_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/coin-master-free-spins-heaven_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/robux-free-c_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-free-exploit-executor_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-marketplace-sell-for-free_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-get-robux-using-cheat-engine-67_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/does-roblox-give-free-robux_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-put-hack-scripts-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/minecraft-windows-10-hack-client-2021_GM479516143.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-robux-com-real_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-get-free-robux-on-ipad-only_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-avatar-items-roblox_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/free-coins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-robux-20219_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/como-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-money-hack_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/best-coin-master-hack_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
font_00_sfnt_off00002f1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F1F 22296 bytes
SHA-256: 2d50f721f7bb495f87c3e664ece305e6eb140055c7789d8b12cf21f91252f2a8
font_01_sfnt_off000060c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C7 19000 bytes
SHA-256: 3fe4afdebc39fd13f7a58e7dbf41b5bd957e5b96810e1cf9ff58fc2fa8ae2602

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