Malicious PDF — malware analysis report

Static analysis result for SHA-256 6daeec16db3b4b17…

MALICIOUS

PDF

35.7 KB Created: 2020-08-08 23:13:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a50f5b144d25259157ffed54c108ee13 SHA-1: b20f13f3ac4319d12176ab0d3c5a106db9b69d81 SHA-256: 6daeec16db3b4b176a40a02ffb58f779d1aad6e274c889d2f6c695107485c873
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body and heuristics indicate a 'free download' lure, a common tactic for phishing or malware distribution. While no scripts were directly extracted, the PDF structure and embedded links suggest an attempt to redirect users to malicious sites, likely for further exploitation.

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=posthuman+ecologies+pdf In PDF document text
    • http://zefoxu.arknaturalintellect.com/uploads/1/3/1/4/131437601/b7d571f6.pdfIn PDF document text
    • http://files.fromoureyes.com/uploads/1/3/1/4/131414561/badodusazodujegejez.pdfIn PDF document text
    • http://files.gigglesphotographync.com/uploads/1/3/1/0/131071137/33e311.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/1/0431/1003/9719/files/29668053495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5863/4650/files/xuridufapojixulel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8946/1410/files/fajaraxizanavibabajiworug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5800/4117/files/222978095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/4828/4839/files/que_son_radicales_libres.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1283/1907/files/lexus_is300_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7564/1247/files/46269947490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6803/1143/files/kakonilezatupekodafetarap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2127/9138/files/31938570888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6851/2669/files/cicely_berry_jaw_exercise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4302/8120/files/67963605014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3090/files/xavemepo.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E71 5476 bytes
SHA-256: 7fd08b011eb18bfb08b0b86b52259a9059399c81282faff4bf89accacdd29f79
font_01_sfnt_off000060f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F0 9784 bytes
SHA-256: 6c9aef628d7a20b3c3f3ad73de832c61439935733297600754f9c12be17e0d38