Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe49e3f22a173953…

MALICIOUS

PDF

70.2 KB Created: 2020-10-30 08:52:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: dac9e816739bfa1780df4f348e55d81b SHA-1: 94261364dd34ffe8cbdb32f0fe277337db54ba07 SHA-256: fe49e3f22a173953d4ab2b6e1240d6bf4fec59ef4b9cdc45226d7341cb96898a
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file contains multiple heuristics indicating malicious redirection and link farming. It embeds a URL that leads to a redirector, likely to obscure the final destination. The document body, though heavily obfuscated, contains the malicious URL, suggesting an attempt to trick users into downloading further content or 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://ggtraff.ru/123?keyword=william+faulkner+poems+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4370778/normal_5f8be58b23128.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366978/normal_5f892e6d808e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376103/normal_5f91defb81a1a.pdfIn PDF document text
    • https://tupipukevoluda.weebly.com/uploads/1/3/4/0/134041298/b853e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366312/normal_5f87565b4d60c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386622/normal_5f976cfb25972.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379487/normal_5f8efc716dbfa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373264/normal_5f8e7dfe1235a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0504/6901/1621/files/odd_and_even_worksheets_for_kindergarten.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/9428/5730/files/jos_dinis_aveiro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/6907/7173/files/puxiropimonuxu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71c1ffbe-c540-482b-b10e-e83e9ffa73f2/mis_sentimientos_erroneos_silvia_olmedo_descargar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35a80fb9-21f8-4ad0-8e48-183d1af2297c/podafikek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/5149/4811/files/imperial_armour_13_torrent.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75a000d0-777a-4a9d-b708-b069d5cf3a5a/lojumojosipomikife.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c41d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC41D 5064 bytes
SHA-256: a12818b60dc4eeae3763f244b9f9b36e8ab4c85cee54c7955517e6028c789ab9
font_01_sfnt_off0000d53f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD53F 12532 bytes
SHA-256: 7354598d8fc5c9be4542b2fa8220021ec0d19317e9bcffaf0d7ba747790eb2f8
font_02_sfnt_off0000fd88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD88 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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