Malicious PDF — malware analysis report

Static analysis result for SHA-256 d383e0767a88f092…

MALICIOUS

PDF

42.0 KB Created: 2020-08-21 07:17:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b19197e50bf683d9399041eb3e1d7621 SHA-1: d535bc985b43b4181abf0c78b68f707ef42708f5 SHA-256: d383e0767a88f092588c03e3a4ac02d9306804d4d2726213c38cc4db819bb4bc
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=skyrim+filial+bonds+guide'. This suggests the document is designed to lead users to malicious content through a link farm, likely for phishing or malware distribution.

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=skyrim+filial+bonds+guide In PDF document text
    • http://rexizagi.division16south.com/uploads/1/3/2/6/132680874/kaboxekagamiji_fewava_bokosofixomire.pdfIn PDF document text
    • http://files.mark2inc.org/uploads/1/3/1/4/131453194/fawesugole-wabuxoguvibojis-tinexivowof.pdfIn PDF document text
    • http://juninalas.danieljbarnes.com/uploads/1/3/0/7/130739197/tepoze.pdfIn PDF document text
    • http://sojaxoxa.juliannacrowder.com/uploads/1/3/2/8/132816202/vikifilukuguwopag.pdfIn PDF document text
    • http://nujip.pinkzebracheer.com/uploads/1/3/2/6/132682093/165a8ebcfe7b.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/1/0463/3447/6449/files/satofuduwufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/jifex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/kobefufiberu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7609/1045/files/jepepuso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7998/1470/files/girl_guides_promise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8652/0224/files/nigoturosuleragemovikux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5417/8216/files/57198309264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6037/9286/files/tiligisuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8309/5459/files/posipesugawunupozev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5792/9621/files/80917083121.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 1

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_off000065b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65B1 5636 bytes
SHA-256: 0cc958188b1329a18ecf828d680cfc4e39e9205e6ff2d954397fe2b0d5cf31a3
font_01_sfnt_off000078c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78C9 10096 bytes
SHA-256: 9aaf241b109828081e30af51a9b0ccb4e36a0fd276e2c37658602a13a74197b4

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