Malicious PDF — malware analysis report

Static analysis result for SHA-256 1945407693da6786…

MALICIOUS

PDF

41.1 KB Created: 2020-08-12 03:30:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7fafdde83fce6c00de81d6c89a3490ca SHA-1: 78cb89745e66bda306633fae93250ab8ebdf0983 SHA-256: 1945407693da678667c2d3015240584762b6c8ed51eba8c9429dd07503fbd0a7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to redirector infrastructure like 'ttraff.com', suggesting a phishing or scam campaign. The document body, though obfuscated, contains text related to 'moral intelligence definition pdf' and the wkhtmltopdf application, indicating a lure to disguise malicious links. The presence of a link farm and a malicious redirector strongly suggests an attempt to lead users to malicious content.

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=moral+intelligence+definition+pdf In PDF document text
    • http://xolike.lmcoaching.co.uk/uploads/1/3/1/3/131383949/jinonalexa.pdfIn PDF document text
    • http://files.popumon.com/uploads/1/3/1/6/131637953/15025a63eb09eeb.pdfIn PDF document text
    • http://files.promechservices.co.uk/uploads/1/3/0/7/130739419/7aad746b2.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/1/0433/0687/7080/files/niriliruvurufuwupaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6640/9639/files/79708917777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7152/7330/files/waxatudibagulowularopog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mujunevuduw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6268/9946/files/72826271931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2625/9876/files/39908096227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2149/2643/files/sustainability_a_history_caradonna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2650/5128/files/guvalumisemi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6485/2634/files/rojunazuximirekuvose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5802/7928/files/xukaxefemijabu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0069/1866/files/28698356213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2971/7407/files/zasugogevopifiwofegawupe.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 4

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_off00006444.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6444 5152 bytes
SHA-256: 9d2f07068ac071709eeab810cfde89cca368a25ff0f3cfb8d0ab5bc632417c97
font_01_sfnt_off000075e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75E1 9844 bytes
SHA-256: 4481a90e7696a2f7750a99d34b3108a88b356233df7afcbe9c24febfcaed7683

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