Malicious PDF — malware analysis report

Static analysis result for SHA-256 423029c00dcf8a16…

MALICIOUS

PDF

37.7 KB Created: 2021-05-23 16:42:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d0e99cb9c12a4484d2c0c9a56facf559 SHA-1: 0b129ad3fdf60be1f448f8efecf2a9a88cf0d3db SHA-256: 423029c00dcf8a1619559fabb79b6bc3a49dc4ea65ff6dcd540f121540f63358
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to malicious redirectors, specifically promoting 'free Robux' and 'game hacks' to entice users. The document body and embedded URLs reinforce this lure, suggesting an attempt to trick users into visiting malicious sites that likely host further malware or phishing content. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/431946152/get-free-robux-2021-game-hack In PDF document text
    • http://paro.net.ua/images/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://paro.net.ua/images/spin-link_GM406889139.pdfIn PDF document text
    • http://paro.net.ua/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://paro.net.ua/images/roblox-robux-page_GM431946152.pdfIn PDF document text
    • http://paro.net.ua/images/free-robux-group-payouts_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_002_off00003110.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3110 27988 bytes
SHA-256: 1c6cc3d5a60c83968022e9dee0cc3942b9957fb2afcefa1da5f1262b879508d7
font_01_sfnt_off00007169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7169 18520 bytes
SHA-256: 6fe0ff66a16b6ee6dc50657e9361d5c62c74e6da0263e26ac7f67f588141101f

Open this report in the interactive analyzer, or submit your own file for analysis.