Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a3a8ec962f3eac7…

MALICIOUS

PDF

42.6 KB Created: 2020-08-28 01:48:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 532af06468f35987bf222af50f342852 SHA-1: a45983bb638903a58ee60dc25f3314cad4dbce5f SHA-256: 2a3a8ec962f3eac7871e9f08fb8619cf8bebdd60d4bb56c3935481a2096ea66b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=present+simple+and+present+continuou'. This indicates a social engineering lure designed to trick the user into clicking the link. The document also contains a large number of external PDF links, many hosted on Shopify, which is characteristic of SEO link farm abuse. No scripts were extracted, but the presence of the malicious redirector URL is sufficient evidence of malicious intent.

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=present+simple+and+present+continuou In PDF document text
    • http://kokopagex.businesstodaynewsletter.com/uploads/1/3/2/6/132681352/jezuxoneduwemevuj.pdfIn PDF document text
    • http://files.georgeswalkies.co.uk/uploads/1/3/1/0/131070911/jalufu_jonamobajeloxo.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/1/0439/9444/8030/files/20334157956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3301/6982/files/zupetogifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0638/5576/files/notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1103/7589/files/accellion_plugin_for_outlook_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2733/2252/files/essentials_of_understanding_abnormal_behavior_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3583/6072/files/dizepujozeragedazegexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/2347/4328/files/liretaval.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/0326/1606/files/arthur_clarke_the_sentinel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8693/0329/files/biwuwobuvofuwik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7368/3112/files/39335045263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2381/0203/files/37061875332.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9383/5432/files/reporting_collinearity_statistics.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: reemslovenia.com 4 samples

Related samples 2

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_off00005d13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D13 5220 bytes
SHA-256: aa61364fa96069e77cacf9b101d136d97e7a524faf5c7b72bd9190800886ec0d
font_01_sfnt_off00006ea8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA8 14568 bytes
SHA-256: 6390057591f980d6c4b56ef6b076aab7c41caf8ddcdb54862ba8040917b0e38f

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