Malicious PDF — malware analysis report

Static analysis result for SHA-256 a62679799f137cc6…

MALICIOUS

PDF

33.3 KB Created: 2020-08-25 01:06:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 598b347ffa2c6c39159007fd26ee6866 SHA-1: 67568f0e729dc058cf632c8404d4e745d2d430e4 SHA-256: a62679799f137cc6cf4be9471930ef4196bc796379a5e7815896edf7387967cd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a deceptive document body that appears to be a weather report but includes a malicious link. This link, 'https://ttraff.ru/pify?keyword=chicago+weather+report+for+today', is identified as a redirector to malicious infrastructure. The file also exhibits characteristics of a link farm, embedding numerous external PDF links, many of which point to benign content but serve to obscure the primary malicious intent. The primary attack vector is likely social engineering via a malicious link within the document.

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.ru/pify?keyword=chicago+weather+report+for+today In PDF document text
    • http://files.rentalshowplace.com/uploads/1/3/0/8/130814340/358fb5.pdfIn PDF document text
    • http://files.creativationevents.com/uploads/1/3/1/8/131856772/1290035.pdfIn PDF document text
    • http://fokiwokuk.elamalawi.org/uploads/1/3/1/8/131856706/9997228.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/1/0437/4410/0506/files/soccer_live_stream_tv_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3061/8020/files/84222970891.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7188/8803/files/xijitepasupatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4235/5865/files/71115250722.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9341/7366/files/girerulabelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99237037604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1959/9004/files/lofilixoxopafetupinopodig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8760/9497/files/xafer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5004/1495/files/angela_carter_the_magic_toyshop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3489/3718/files/bojaxediforalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7331/4715/files/gexomedu.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 8

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_off00004627.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4627 5304 bytes
SHA-256: 2a3386afa3224d36d179a5bb6a96b1c367b1e73b89c613e40d52e40e6dcfb03b
font_01_sfnt_off00005841.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5841 9432 bytes
SHA-256: fd4c06cfd7971ead74584c4726537d8e5e42ca29e7c013c62ece8f2845ced81e

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