Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8fc48815a68cf91…

MALICIOUS

PDF

40.2 KB Created: 2020-08-18 18:52:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c1e5260a7f00fd41597bfcb2b04cc675 SHA-1: 5309027967d46507956dd34631f08fe58172a9ef SHA-256: d8fc48815a68cf91cb43f909c98b64cf9887bb26f5124d02ba9d5b1ed4984b71
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, disguised as a FedEx shipping report. The PDF also exhibits characteristics of a link farm, with numerous embedded links to external PDFs, many hosted on Shopify. The ML classifier strongly indicates maliciousness. The primary attack vector is likely social engineering via a lure document.

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=fedex+ship+manager+end+of+day+report In PDF document text
    • http://files.merrymeetingartscenter.org/uploads/1/3/0/7/130775232/tejorojubogugoto.pdfIn PDF document text
    • http://kasirejob.stephaniepercydoula.com/uploads/1/3/1/4/131453540/8731653.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/1/0429/3446/8774/files/luzigipagezazivadaropa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/tanimegigibunofebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6983/2354/files/ipa_transcription_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8566/8255/files/gizudodebalofomimirofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/79920994062.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5655/4394/files/77318984278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6175/5547/files/vuwowosijadaximudageliz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5788/0994/files/civ_cardiologia_pediatrica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8812/4829/files/67529253601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2161/5775/files/vuwibabemifoperugofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2287/5797/files/xinutex.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
🗂 Part of campaign: merrymeetingartscenter.org 3 samples

Related samples 2

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
font_00_sfnt_off00005e1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E1A 5548 bytes
SHA-256: 8f9dc7150a7248b30e46f50c7c8d409f2266d0f95c81aafd82bc1f694b5dcc1a
font_01_sfnt_off000070e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70E7 10312 bytes
SHA-256: df8a7cdb1cf1ea77430629c0c9ab9ec2158c5d341cf3437383f47034fd549a4f

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