Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e5df76c3653a66d…

MALICIOUS

PDF

57.2 KB Created: 2020-08-02 08:10:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aefac2a06a47a8b78e234b5793c91386 SHA-1: fc43d9cb1e14191f857f994e11d589347f4cdc2e SHA-256: 4e5df76c3653a66d1341f70caf0e6aaaf9853060cf3f580631f85644595fb856
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, identified as a link farm. One of the primary links, https://ttraff.com/pify?keyword=abrogator+stone+farm, is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated and appears to be mostly binary data, but the URL is clearly visible within it.

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.com/pify?keyword=abrogator+stone+farm In PDF document text
    • http://files.oliviabarryptyoga.com/uploads/1/3/2/6/132682790/2897152.pdfIn PDF document text
    • http://files.f-y-t-a.com/uploads/1/3/0/8/130814411/vebiluren.pdfIn PDF document text
    • http://files.stlukeamezionchurch.org/uploads/1/3/1/3/131398428/lozugupufadenijuxa.pdfIn PDF document text
    • http://files.2tenbooks.com/uploads/1/3/0/7/130738739/pamunasudidizemo.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/1/0432/5107/3174/files/zipexulafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6518/0321/files/25449337743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1586/2434/files/ff12_esper_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3874/3450/files/katenefumokuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4569/0266/files/telaju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8100/7255/files/north_east_ohio_bounding_box.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6714/6397/files/vepigefoxutemaputaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4277/3914/files/83055797643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7400/0798/files/42945036568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6179/6248/files/22610882880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0876/1764/files/jekatofigimimoluridox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7578/8184/files/daroroveruv.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: f-y-t-a.com 4 samples

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009662.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9662 4924 bytes
SHA-256: 2eb484d75bbbbcb86daf985330dd38ccfe73abc9d4d42462f9e260ce5c6de77c
font_01_sfnt_off0000a700.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA700 10176 bytes
SHA-256: 6a3e246428686c5785a04ff0f2536854fe3bfe43111aac02ac71f539f49db56d
font_02_sfnt_off0000c9e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9E8 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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