Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc2a4e275182bb6e…

MALICIOUS

PDF

158.0 KB Created: 2020-08-12 20:54:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4aaf61e1fc43059f672f9443e89298f4 SHA-1: c181be05e0c20f15db83690a685bd2d1c5280680 SHA-256: dc2a4e275182bb6e4be1d5a56fa101108fe6f8cb1010b077f1ce15dcfaf391a9
134 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link. The embedded URL points to a redirector service that, when followed, leads to a URL containing 'zulfiqar ali bhutto biography pdf'. This suggests a social engineering lure to trick users into downloading potentially malicious content. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • 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=zulfiqar+ali+bhutto+biography+pdf In PDF document text
    • http://files.priorecologylab.com/uploads/1/3/0/8/130813511/67bcbebf39be145.pdfIn PDF document text
    • http://files.scdvinfo.org/uploads/1/3/0/8/130815277/331673a61b2dc.pdfIn PDF document text
    • http://files.babsbeadwarehouse.com/uploads/1/3/1/6/131606396/9908d0de.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/1/0428/9835/8432/files/jewaxepolirabosumasedud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3111/7467/files/download_ebook_akuntansi_keperilakuan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3467/3301/files/58213318079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0910/6332/files/xubajifefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2125/files/zuwewatososapurukirel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7727/1716/files/nusibolim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9431/9009/files/wimogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6191/1460/files/49674737276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5765/9560/files/craftsman_lt1500_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2770/9597/files/79158839424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/4293/3657/files/oxo_biodegradable_plastic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4351/1703/files/carb_cycling_vegan_meal_plan.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00020b65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20B65 5448 bytes
SHA-256: d9cd58a9677113c3a1699ab3cf45c716788fed9812ff67f7ac13b95656e74d72
font_01_sfnt_off00021de3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21DE3 15112 bytes
SHA-256: 420e2b269f6697fea25e731e1cdb80a48354d3c0ba246a431ff2aa0cc73c9bd0
font_02_sfnt_off00024d3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24D3F 18484 bytes
SHA-256: 6375801a532d04635e668345540a9abd46f3bcaa08fe1bb115e397f18d0f408d

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