Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb9b12569b000a52…

MALICIOUS

PDF

42.6 KB Created: 2020-08-22 20:16:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 043460b748b7cda71b875adad8dfafad SHA-1: 04bc5213718f0ea1c031cfe8aa4771b4fe31a5f9 SHA-256: eb9b12569b000a5243d66c4e86cd632cb347966436dbf86384086f4a73210508
194 Risk Score

Malware Insights

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

The PDF file contains a lure related to a 'complaint adjustment letter template' and embeds a link to a known malicious redirector. The primary heuristic indicates the PDF links to malicious redirector infrastructure, and the ML classifier strongly supports a malicious verdict. The embedded URL is the highest priority IOC.

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.ru/pify?keyword=complaint+adjustment+letter+template In PDF document text
    • http://files.1stshiplake.org/uploads/1/3/1/3/131384081/pavukutumade_xozebasibi.pdfIn PDF document text
    • http://files.storymakerlife.com/uploads/1/3/0/7/130776407/wejus_maberevevo_xifemur_ruvipe.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/1/0431/8570/1019/files/cook_once_eat_all_week_cassy_joy_garcia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7167/6314/files/duladebugula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65817182127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7932/7130/files/47912696867.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2724/2914/files/52177105770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3113/3351/files/dependent_prepositions_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57727452667.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2995/4721/files/81929244151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7007/8617/files/accountability_in_the_workplace.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9005/9176/files/lonudiroberodokifes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9739/1261/files/karaoke_duet_48.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3828/5725/files/cd40110be_datasheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8478/3509/files/jureduzebalewuxelixizu.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 6

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_off000069b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69B1 5084 bytes
SHA-256: 77a07875efc5d77b7a21eae25282f88c9bb89f0e2a8eeb802358bda013935c49
font_01_sfnt_off00007adb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ADB 10200 bytes
SHA-256: d44e7e8244a87b52ca2cff40b5058a05bf7fc6658f9862cf081527e318ef0981

Open this report in the interactive analyzer, or submit your own file for analysis.