Malicious PDF — malware analysis report

Static analysis result for SHA-256 06733cb2ac15b3dd…

MALICIOUS

PDF

50.2 KB Created: 2020-08-20 05:55:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8c8d9e8c8c52fd2709153e12f44a7880 SHA-1: 6123cdd3ff7fb64ac901dc8ce94a03992e8c984c SHA-256: 06733cb2ac15b3ddd6dd0648aef79738a43e416cfb8f10eae5cf3935dd4e69ba
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious domain, disguised as an employee appraisal report template. The ML classifier strongly indicates maliciousness, and the PDF structure suggests it's designed to exploit users through social engineering. The embedded links are the primary indicators of compromise, leading to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.com/pify?keyword=employee+appraisal+report+template In PDF document text
    • http://files.stpatsni.co.uk/uploads/1/3/0/8/130814208/pobimupuronebox.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/1/0429/9754/7157/files/foluxuworufoginedasipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7886/7351/files/fokavipupazusidegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5655/4394/files/contending_with_christianity_s_critics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4190/5050/files/38740095990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9816/8743/files/benim_hocam_tarih_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/nafapuziwefumax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50751207741.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 1

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_off000088c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88C1 5024 bytes
SHA-256: 1a654cddd788410ac48e3b793070708522cc851af15a25f80505dfe44ebe2976
font_01_sfnt_off000099c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99C5 10244 bytes
SHA-256: 7f7d672dc8a6c65f403144aeb763b08d66faa921918443dbb3b2c60d16c3ffb7

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