Malicious PDF — malware analysis report

Static analysis result for SHA-256 b594c9aa5ec3deb3…

MALICIOUS

PDF

47.1 KB Created: 2020-08-15 00:46:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6550f099a15fa1a33cf1331f18878871 SHA-1: e8f50100c8f4069c1ab096409be79c131c339a4c SHA-256: b594c9aa5ec3deb3fdca7ab0095204cc784570a7724bf52a3d25c03c0ca41a03
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text related to 'explain the branches of psychology pdf' and includes the malicious URL https://ttraff.cc/pify?keyword=explain+the+branches+of+psychology+pdf. This URL is designed to redirect users to potentially harmful content, likely a phishing or malware distribution site. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility.

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=explain+the+branches+of+psychology+pdf In PDF document text
    • http://supovoli.sftfurniture.com/uploads/1/3/0/7/130738792/9877500.pdfIn PDF document text
    • http://files.liveopenly.net/uploads/1/3/0/7/130776142/timefigasalo_fefuriridijudew_sozerajiwi.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/1/0429/6579/4965/files/10282225155.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1409/5001/files/java_8_features_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7016/7967/files/parurunatok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/90379225571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/lavupevavut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2135/2606/files/tenepamosisakabetufat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2690/6264/files/11077289237.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4021/1105/files/zesegovuxemavewelinu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6738/2687/files/msculos_agonistas_antagonistas_e_sinergistas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6861/1998/files/kevajaw.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 2

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_off00007169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7169 5684 bytes
SHA-256: 052330127e7dd62a85e45de7405d3079c4a2c68f5c58f27c440f71f9823b2792
font_01_sfnt_off000084aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84AA 13604 bytes
SHA-256: c0c237c9bb049db75a1c6a44aa3b04c53eef58c2d66308432fa4a65eae3e0963

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