Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5fed65c2d6418e6…

MALICIOUS

PDF

47.3 KB Created: 2020-10-05 17:50:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 11e477786be9434a3970309fb43068f3 SHA-1: 5b09cff636851d993715f1d405c619e67621d84b SHA-256: d5fed65c2d6418e64574d5a8a186ec3176264ea12bb17f877edc5b52b8ae9f95
184 Risk Score

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/strik?keyword=wahl+guide+combs+sizes In PDF document text
    • https://site-1038852.mozfiles.com/files/1038852/kenotugi.pdfIn PDF document text
    • http://files.threecreekaussies.com/uploads/1/3/2/7/132710655/sujut.pdfIn PDF document text
    • http://files.creativeassociationservices.com/uploads/1/3/1/3/131398461/basizanif.pdfIn PDF document text
    • http://jolibanow.rushfactory.net/uploads/1/3/2/6/132695478/waxuwaxigeseg-gutixusa.pdfIn PDF document text
    • http://sipasogi.theroundhousefarm.com/uploads/1/3/1/4/131406202/1ee60af.pdfIn PDF document text
    • http://lolub.cherrybloomclothing.co.uk/uploads/1/3/1/6/131636725/dajutav_panesilatuga.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/1/0482/5812/1883/files/98308132232.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9256/8983/files/pirexanisofepaluputimus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/6111/1705/files/kowudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/0236/7639/files/9139040589.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0469/3095/2347/files/72932448352.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ecbfbf9-5ce4-46b8-8302-34ebff0debc5/bidekomeposigadabomitusej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d978bd17-6d57-4cbc-b6c4-b2ff8430bfd4/49395474511.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/378ec56b-29bc-4db4-ad0a-9deedca153d5/95772408802.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1a0599b-21f1-4c15-9059-0396f708a062/lonorape.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 8

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_off000073c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73C4 5460 bytes
SHA-256: 5241ccb07a84e9d260b57ef6758957b46e7279e6d9a2e5ed52fb874afde33e07
font_01_sfnt_off00008645.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8645 13556 bytes
SHA-256: ad5f85b3e5f90e16e8565d463d3caf2019b22c4617efbad61ac706660cfd6f17

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