Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d1aef78f3e7b352…

MALICIOUS

PDF

53.4 KB Created: 2020-08-15 14:41:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 62e854aae30b877186d56219db9689e4 SHA-1: c4dd04ba57b61d0a7dbbb5e862731d3060a868d7 SHA-256: 1d1aef78f3e7b352ca6b617f606c531731690f20751d29f20b410d317d3fa49a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a mass of external links, with one specifically identified as a redirector to malicious infrastructure. The document body, though heavily obfuscated, contains text referencing a 'leveling guide' and a URL that matches the malicious redirector. This suggests a social engineering attack aiming to trick users into visiting a malicious site.

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=horde+1-+60+leveling+guide+classic In PDF document text
    • http://vonozot.sinkutradiatorservice.com/uploads/1/3/2/7/132740264/af4fe3dba7b98.pdfIn PDF document text
    • http://vufosonib.trudietrewin.com/uploads/1/3/1/4/131407005/fafozepuzufinanaxot.pdfIn PDF document text
    • http://files.maranathabiblens.com/uploads/1/3/1/4/131454172/xogunetaxuw.pdfIn PDF document text
    • http://wirupubet.levenschoir.net/uploads/1/3/1/4/131437402/vitevolilawifeluxamu.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/1/0431/5506/2948/files/65796747786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7515/7670/files/experience_letter_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8123/6634/files/belajar_gitar_elektrik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1275/7400/files/ritububafaruzibotoxepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8099/1388/files/poxaziwadujijun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/49277553747.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8448/9631/files/76546361255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8393/0527/files/sbi_atm_card_replacement_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3552/5282/files/96650303026.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7745/9363/files/negelubukunem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75609531209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2677/6227/files/83138024921.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 3

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_off0000927f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x927F 5508 bytes
SHA-256: 2b5cecb585f917ba998662d0a108747d01f26f95a7daab9cb7f598d059c38339
font_01_sfnt_off0000a55c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA55C 10284 bytes
SHA-256: f43060c7e543c8331c279bb18a9f4da25005d85a6fdd9aed2b8758545204826e

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