Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3439bce6262d9d5…

MALICIOUS

PDF

50.9 KB Created: 2020-08-20 04:51:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d265403a1fa04c5d4e64ba7dd840caf6 SHA-1: 680aa7c34762088ca902d6a6a9149d5fd48fb0ca SHA-256: f3439bce6262d9d5ceaa186dfac6b88b37eba733a2de5b5d63812d76b6fce641
202 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service designed to obscure the final malicious destination. The presence of a 'download button' lure and the ML classifier's high confidence score indicate a malicious intent to trick the user into navigating to potentially harmful content. The primary redirector URL is https://ttraff.cc/pify?keyword=lookbook+template+psd+free.

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.cc/pify?keyword=lookbook+template+psd+free In PDF document text
    • http://riduga.doublebeehoney.com/uploads/1/3/1/6/131607062/dixojafizukosu.pdfIn PDF document text
    • http://files.thomscer.com/uploads/1/3/2/6/132681212/wonewoxuxen.pdfIn PDF document text
    • http://kapeked.gaiabamman.com/uploads/1/3/0/8/130814328/sediwexir.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/1/0433/4374/1083/files/miterujotakal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2174/5822/files/definition_slope_intercept_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2076/0734/files/periodic_table_of_elements_2017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4889/3606/files/auxiliary_verbs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/87850237113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6662/2106/files/zolodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7201/1941/files/83490343021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3331/3958/files/dafezekazinenipoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8521/7436/files/importance_of_vehicle_tracking_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5837/1496/files/silokudabem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4869/6993/files/penerizetibawimeniz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9643/8936/files/79431418069.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_off00007d35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D35 4968 bytes
SHA-256: 179c4500439023206937be4996ec106016883ea0c40761409084a0aea5c73e0a
font_01_sfnt_off00008e0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E0F 10128 bytes
SHA-256: 0814760f5f04bb0654bd4a38604d70dffdd08aea848442d11b54f7b30af9b0b4
font_02_sfnt_off0000b0c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0C0 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e