Malicious PDF — malware analysis report

Static analysis result for SHA-256 b04277f6c6d2fcb7…

MALICIOUS

PDF

46.9 KB Created: 2020-07-28 23:02:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 789ca8367b3b843206a79998a8918de4 SHA-1: baaf05c1f124049a54f1f7da4207b1ef369b280c SHA-256: b04277f6c6d2fcb77c0c7747b45dc69b5e571c035b6704d871a297b96e671de0
194 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, pointing to 'https://ttraff.ru/pify?keyword=manual+acredita%25C3%25A7%25C3%25A3o+ona+2018'. Additionally, it exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains. The document body is heavily obfuscated and unreadable, but the presence of the malicious redirector strongly suggests a phishing or malware delivery attempt. No scripts were extracted from this sample.

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=manual+acredita%25C3%25A7%25C3%25A3o+ona+2018 In PDF document text
    • http://files.crossroadschurch-aurora.org/uploads/1/3/0/7/130739298/bigedovexawokorusuf.pdfIn PDF document text
    • http://files.marinapascoe.com/uploads/1/3/2/8/132814589/e4fdf359.pdfIn PDF document text
    • http://files.inakadojo.org/uploads/1/3/2/6/132696063/9652941.pdfIn PDF document text
    • http://files.surrenderedtochrist.org/uploads/1/3/0/7/130776483/c00dec987.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/1/0434/8660/9573/files/74596632096.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2154/8194/files/64044108338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5178/5109/files/47017929210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0131/5491/files/walevawedu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8942/0695/files/93476319145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3061/8011/files/34933490285.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7722/8957/files/12778655393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5586/6263/files/nunifirivezururufig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7909/0855/files/dozakupa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8568/5153/files/65180211253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6006/0567/files/77387703764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0667/1517/files/19112606878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9744/6816/files/98460888834.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 3

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_off00007529.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7529 5664 bytes
SHA-256: 6dc698c42806f10151ad9cc88944255a98344fd810e0b6e726350523775ddc4e
font_01_sfnt_off00008792.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8792 12124 bytes
SHA-256: dc2eac9dfeeacd8553dec1b9ae936cd3a89343bd809af49c1f0a6d86386f27f3

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