Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c36652749dc1bc1…

MALICIOUS

PDF

40.5 KB Created: 2021-05-15 04:48:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: e3645c6664ba219eae872a8b2b8c8469 SHA-1: 19c9e5f47b3e7fe2f9b09021a3a15f266909ae99 SHA-256: 2c36652749dc1bc1089dc0006a7bb473cac55acc0a117e2ad364870a3915054e
160 Risk Score

Malware Insights

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

The PDF contains links to known malicious redirectors, specifically advertising free game hacks and generators. The ML classifier also flagged this PDF with high confidence. The embedded URLs and the nature of the lure suggest an attempt to drive users to potentially malicious content or further exploits.

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/martian-lettuce-coin-master-free-game-hack In PDF document text
    • http://jackson-pr.com/images/free-roblox-card-codes_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/roblox-redeem_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/how-to-get-gold-cards-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/how-to-get-java-minecraft-free_GM479516143.pdfIn PDF document text
    • http://jackson-pr.com/images/robux-hack_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/coin-master-free-spins-iphone_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/how-to-get-free-golden-card-in-coin-master_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/free-roblox-wings_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/coin-master-email-free-spins_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/free-robux-come_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/free-minecraft-coins_GM479516143.pdfIn PDF document text
    • http://jackson-pr.com/images/coin-master-hack-ios-no-jailbreak_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/download-hack-coin-master_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_off00004742.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4742 23768 bytes
SHA-256: 1b5e8b5929e293a15aed008806f49f05a01cac9a44fcc082cb2ffc6c95ccef88
font_01_sfnt_off00007d4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D4B 17848 bytes
SHA-256: 87e0d40e779d2b7a8ffa368e3c7d26765f9a401596444c1bf6ba516daf2b347c

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