Malicious PDF — malware analysis report

Static analysis result for SHA-256 f041da534e402b72…

MALICIOUS

PDF

55.1 KB Created: 2020-07-29 20:48:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d053c69ad732b7dfb20c712b6532952b SHA-1: a7905bfea84d188c879181d79f42e1f437c8bcfa SHA-256: f041da534e402b72952d047c2cec6f5ac2a248535dbb77772a44646beb9c858d
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links pointing to redirector infrastructure, specifically identified as malicious. The document body, though heavily obfuscated, suggests a lure related to a 'temporary assignment'. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm designed to distribute malicious content or phish for credentials. The ML classifier strongly flagged this PDF as malicious.

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.cc/pify?keyword=assignation+temporaire+csst+pdf In PDF document text
    • http://files.eugenias3rdstreet.com/uploads/1/3/0/7/130775934/mizaroreranin.pdfIn PDF document text
    • http://files.michaelbrownslawoffice.com/uploads/1/3/1/4/131406762/xajixolaxexojobegu.pdfIn PDF document text
    • http://files.bayportaerodromesociety.org/uploads/1/3/1/3/131383580/fa5b79216f.pdfIn PDF document text
    • http://files.chapel-associates.co.uk/uploads/1/3/0/8/130874489/gowozugujexiv-nefox-figokupipef-laxinixodobalaz.pdfIn PDF document text
    • http://files.rhetoricsoup.com/uploads/1/3/0/7/130738939/xaximulevuwedex.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/1/0439/9074/5246/files/jevowilif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/84860081798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7367/4142/files/wusamumaxijizelebuwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8621/6344/files/12672787491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/64572977721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3266/6524/files/80164100034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6992/1688/files/xaxukomenodef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9969/9866/files/tijimatovur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3303/3880/files/gozuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2748/8168/files/68428676103.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1470/1735/files/dujajexutite.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

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
font_00_sfnt_off00009a43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A43 5220 bytes
SHA-256: dce3b84b9192722b90ac764b88013fb721ad67601b428cc90c5a309121b3a13f
font_01_sfnt_off0000abe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABE6 10312 bytes
SHA-256: 96393a34ac507f0c3cc35edd783fb93e67c07720e705d14f4d411bd244a36dfc

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