Malicious PDF — malware analysis report

Static analysis result for SHA-256 b59920148c086f81…

MALICIOUS

PDF

36.5 KB Created: 2020-08-07 02:31:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 938ce18f2496f86a0ec80e2c8c7d11cd SHA-1: 50e0bd0e84f401d69de7e6c628de6ecc9770e807 SHA-256: b59920148c086f81d0039f7186ed16c7eae418b5b664f01fff746433bd4834e1
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, pointing to ttraff.ru. The document body, though heavily obfuscated, contains the same URL, suggesting a lure to trick users into clicking it. The PDF also contains a mass external PDF link farm, with many links hosted on cdn.shopify.com, indicating a potential SEO poisoning or link farm tactic to distribute 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.ru/pify?keyword=anthem+bcbs+ga+prior+authorization+form+pdf In PDF document text
    • http://files.jenniferjoseph.org/uploads/1/3/1/8/131856852/relutelofapalejuzoz.pdfIn PDF document text
    • http://files.markcraiggallery.com/uploads/1/3/0/8/130874305/8187bb233ffd5.pdfIn PDF document text
    • http://files.kleinspainted.com/uploads/1/3/1/3/131382595/zojozasibulepak.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/1/0429/2821/0073/files/xerot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0295/1842/files/59237405205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7972/8281/files/honda_cr80_service_manual_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5147/5351/files/69398579811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5816/7959/files/14979509357.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3089/6026/files/51294796282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1824/8601/files/4834243677.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0087/3631/files/91261009444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3159/2088/files/liwofodewowiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6656/4520/files/duxisesunoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3599/8880/files/mutedetemopanet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0641/8331/files/upcoming_bank_exams_2020_20_full_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/8138/8452/files/reconstructing_native_american_population_history.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5205/6227/files/5470444844.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_off000050b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50B4 5716 bytes
SHA-256: 490d45a902823c4457b72a9de38bf965b2dfc10dac436dceeca07bab00fcdbce
font_01_sfnt_off00006407.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6407 9620 bytes
SHA-256: 51b9113bc9a2f72a6fec4d8f2693e3e0265a9aa20c152d4e428792147dc609e7

Open this report in the interactive analyzer, or submit your own file for analysis.