Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d325409631eba68…

MALICIOUS

PDF

47.6 KB Created: 2020-08-24 04:06:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a21c088775502026416b2e6f4b292f0e SHA-1: 54a7ca1b6ade38d0cdd5373aa3bf76460adde6a7 SHA-256: 6d325409631eba682aa7cc98a99504b9d1526b2d9279eb04f7bd630b151efe7b
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and a link farm, including a critical finding for a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that matches the redirector found in the heuristics. The presence of numerous embedded links suggests an attempt to distribute malicious content or engage in SEO manipulation for phishing.

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.com/pify?keyword=worksafe+wa+risk+assessment+form In PDF document text
    • http://files.dustymcmillan.com/uploads/1/3/1/6/131606175/forijawavotodud-vojusinagof.pdfIn PDF document text
    • http://lugofawo.koahspeargun.com/uploads/1/3/1/3/131379179/cbb79b7425cb2e.pdfIn PDF document text
    • http://sizep.cougarstrongracing.com/uploads/1/3/1/6/131606490/sunokediri_wigisawutal_xakabaxiz_faxipi.pdfIn PDF document text
    • http://files.micheleroldanshaw.com/uploads/1/3/0/9/130969061/fd24d76ef79.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/1/0430/2392/5402/files/metonazafemukamepoposobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/38805952464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8279/2612/files/donne_bukowski_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3706/4354/files/lulig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3884/2779/files/18355102616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8438/1337/files/78775333996.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6946/4991/files/jolovopezijenotapoxokal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3545/9738/files/ccs_university_online_exam_form_bba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8634/7430/files/grep_command_in_linux_with_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/4823/1066/files/3699137924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/49317098487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8904/3362/files/besm_d20_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2030/3011/files/mekiwamigozibox.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_off00006f73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F73 4836 bytes
SHA-256: aa641f92f6d9c6b7b9484dd395447847bb608ab40a68629a158b7a478ec460a3
font_01_sfnt_off00007fe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE4 10300 bytes
SHA-256: 25a0a4127212669cdad409f8ffff41a100f13c79da7aa58319ce2d1b084b8f33
font_02_sfnt_off0000a32f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA32F 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333