Malicious PDF — malware analysis report

Static analysis result for SHA-256 aea5b6a21f40ef1e…

MALICIOUS

PDF

45.6 KB Created: 2020-08-14 06:29:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bf1adbb07a94f715756739f25ce2abc8 SHA-1: bf04a4ec429383040e01a91ab147aee2f539981f SHA-256: aea5b6a21f40ef1ea32a5f6be152a1a1eae3002da0237a7039a9da05593b5a10
162 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=soundcloud+songs++app'. This URL is designed to redirect users to potentially harmful content. The document body, though heavily obfuscated, also contains this URL, reinforcing its role as a lure. The presence of numerous other PDF links, many hosted on cdn.shopify.com, suggests a link farm or SEO poisoning tactic to distribute the malicious URL.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=soundcloud+songs++app In PDF document text
    • http://files.mrshutesclassroom.com/uploads/1/3/0/7/130776180/594e1.pdfIn PDF document text
    • http://files.aidspirit.org/uploads/1/3/0/7/130775304/luxuxewebilisupirosu.pdfIn PDF document text
    • http://files.new.camarillochamber.org/uploads/1/3/2/6/132681028/2346944.pdfIn PDF document text
    • http://files.theexoticanimalencounter.co.uk/uploads/1/3/1/1/131164462/bibirojod-kopukasine.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/1/0431/1541/3658/files/xoturovude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1459/4464/files/96365406658.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0965/4434/files/54333617230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6384/4767/files/38802649640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8946/1410/files/wuvidomesilagajojuwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7664/9121/files/36282127135.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1287/1576/files/historical_romance_novels_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2656/9633/files/ronenimijesej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9481/7445/files/43078328342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7336/2325/files/94513203655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9356/6364/files/31784740678.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0723/6503/files/ite_parking_generation_4th_edition.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A37 5248 bytes
SHA-256: 7c59c7764e81a3ef6054836074eb9f79efce6bc89170c65e6c437f1a22c32af8
font_01_sfnt_off00007c12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C12 1964 bytes
SHA-256: 4124f772d75de2e757d66273de45ab67d1472cce93aafc68bf24d7cdb8923c6c
font_02_sfnt_off0000856b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x856B 10584 bytes
SHA-256: d41eaaf8f38d9e0aec15d91738f20e68be15066f5764cd3487b444f1b2532cb0

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