Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c6843785dd91787…

MALICIOUS

PDF

47.1 KB Created: 2020-08-05 01:22:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bd382eca52e77da8bbd459bc81141bb3 SHA-1: 50a65af954fd2a3bc623cab92432bee0eb3a2358 SHA-256: 9c6843785dd917871f12f89493e76b3eac19b800c8132dcfa22246d7bd687fcd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a malicious redirector link disguised as an 'Asda pet insurance claim form'. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates the primary URL leads to known malicious infrastructure. The PDF_SEO_LINK_FARM heuristic suggests the document is part of a larger link farm, likely for SEO poisoning or distributing malicious content. No scripts were extracted, but the presence of embedded URLs and the document's deceptive content strongly suggest a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.ru/pify?keyword=asda+pet+insurance+claim+form+pdf In PDF document text
    • http://files.tabdoughertyart.com/uploads/1/3/0/7/130739080/komob.pdfIn PDF document text
    • http://files.heartlandjungians.org/uploads/1/3/0/7/130776841/ziniruper.pdfIn PDF document text
    • http://files.ckfleet.net/uploads/1/3/1/3/131380146/deratuluvadu-nunogodade-lojazufiwisi.pdfIn PDF document text
    • http://zinel.mobilecarandrvdetail.com/uploads/1/3/0/8/130874284/zorebo_javovoli.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5864/0534/files/vitowiwigodoram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/30347110120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3009/3728/files/rexexinuxif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/rarewivibigezudovuzaxumoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5425/1670/files/wuvekig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2327/0042/files/7720065416.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3024/8600/files/dc_metro_bus_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6274/7548/files/42190319540.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74140302582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0683/5358/files/gozulexevudagabu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7678/6078/files/36759097418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3089/files/tonisare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5143/4659/files/konaviwoxizogalu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B5D 5172 bytes
SHA-256: 5a5c3d368482378462b69d4ba5c9ac530b39f8754f0dfcf9dc39b9961dfe8c2b
font_01_sfnt_off00007cd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CD3 10556 bytes
SHA-256: e509fcd736b401f47be0aa09c959bd570e5cca2f42791f542e6edf8f5015d046
font_02_sfnt_off0000a0af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0AF 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176