Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cf51232cabdad9e…

MALICIOUS

PDF

59.0 KB Created: 2020-08-09 01:57:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 19567ac5783e39b48f5fc85ac0163dc3 SHA-1: 85255cb850fefee8f7151ea9c585514762649e80 SHA-256: 7cf51232cabdad9e016494b66837cb413503e5311a36760d136343fd349c5089
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link disguised as a download for 'IPL 2020 timetable and venue pdf download'. This link, https://ttraff.cc/pify?keyword=ipl+2020+timetable+and+venue+pdf+download, redirects to malicious infrastructure, indicating a phishing or malware distribution attempt. The PDF also hosts a link farm of 30 external PDF links, many of which are hosted on Shopify, suggesting an attempt to manipulate search engine results for the lure. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.cc/pify?keyword=ipl+2020+timetable+and+venue+pdf+download In PDF document text
    • http://files.meadowsparkapts.com/uploads/1/3/1/6/131606140/01f99e.pdfIn PDF document text
    • http://files.midzi.org/uploads/1/3/0/7/130775354/1157920.pdfIn PDF document text
    • http://files.sukhi.no/uploads/1/3/1/1/131164442/5461426.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1607/5939/files/53301968125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/xawipowezaxejezosibalitew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/37604868145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8613/5961/files/lovoruzenol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6658/0382/files/moodle_iit_delhi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3048/5915/files/87955453633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3511/5175/files/xivorijukerewonawuvinol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/8881083030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5644/7136/files/kalender_2020_nrw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2657/9610/files/dofavuwowinenukimow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9186/1410/files/gofavavisusubipegapexaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7513/2821/files/32105301941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2666/8952/files/73655881497.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a97a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA97A 5416 bytes
SHA-256: 1f55f461f450b5c4aceccb9af0b35d39befe1f67fd863e78d91845074a5f10b7
font_01_sfnt_off0000bbeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBEB 10136 bytes
SHA-256: e5ccfe03e5f4167c95d8e07b308a927e21c63b2ad959c52ab43eb774979d95c6