Malicious PDF — malware analysis report

Static analysis result for SHA-256 659a2cf43d5339d3…

MALICIOUS

PDF

60.9 KB Created: 2020-08-13 22:27:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1aac4feedd39814bbeb0019337a095ea SHA-1: befb8726d57b85b48bd183a38acae9d84055a7b0 SHA-256: 659a2cf43d5339d3580c1d970eb9217cf73c2317a0532813d2a2bccba9f44d35
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple links to an SEO redirector, specifically `https://ttraff.cc/pify?keyword=android+device+mockup+free+psd`, which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect users to malicious infrastructure. The presence of numerous links to external PDFs, many hosted on Shopify, indicates a link farm strategy to obscure the malicious redirector.

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=android+device+mockup+free+psd In PDF document text
    • http://vipef.werkmandental.com/uploads/1/3/1/6/131637814/rarenafawabovof-bodigadiwofovo-beketixifepin-fusifofigiv.pdfIn PDF document text
    • http://kagakoto.teiit-bg.com/uploads/1/3/0/7/130775934/991450.pdfIn PDF document text
    • http://bugok.anujparashar.net/uploads/1/3/0/9/130969465/vofowixew_budutifejapo_xatiri_kovosuf.pdfIn PDF document text
    • http://ganatik.mingateachers.org/uploads/1/3/1/4/131437657/3437961.pdfIn PDF document text
    • http://files.camera1.ca/uploads/1/3/1/3/131380413/pizixejawij.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/1/0430/1104/7575/files/93096244833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1851/6637/files/california_consumer_privacy_act_of_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0560/6049/files/que_es_cardiomegalia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/9104/5026/files/lawless_and_heymann_sensory_evaluation_of_food.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6997/2383/files/33876680358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0214/9539/files/17155492179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9186/1412/files/najevej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9008/1960/files/cover_letter_for_nursing_job.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0742/4158/files/31700065369.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5326/1724/files/51208704295.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4152/9754/files/23014209898.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_off0000b0f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0F3 5172 bytes
SHA-256: 099c4906ac045744a30ba0ea4c90a0b5d16dc2e8c32924017106423e6e6631d8
font_01_sfnt_off0000c27f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC27F 10600 bytes
SHA-256: 1307f61bf5086d503b0df260ab2b3afd3a854780b7c9892bea72c1b267b53a6d

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