Malicious PDF — malware analysis report

Static analysis result for SHA-256 baefff658edebe4e…

MALICIOUS

PDF

80.3 KB Created: 2021-01-01 08:54:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 409eb829b61288a0d502cc9f715a9520 SHA-1: 98ec15ebf980ba9c517f894b1dc0d2c08eee28b3 SHA-256: baefff658edebe4e835728e7939d646758519d35303d19331ac4c966f88cf31a
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous external links, with a significant number pointing to PDF files hosted on various platforms, suggesting a link farm or redirection scheme. The primary URL, 'https://trafffi.ru/strik?utm_term=car+mechanic+simulator+xbox+one+mods', indicates a lure related to gaming mods. While no scripts were explicitly extracted, the PDF structure and extensive link farm heuristic suggest an attempt to drive traffic to malicious or deceptive websites, likely for phishing or scam purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffi.ru/strik?utm_term=car+mechanic+simulator+xbox+one+mods PDF link annotation
    • https://jamafijuzu.weebly.com/uploads/1/3/1/4/131437216/2568472.pdfIn PDF document text
    • https://miniroworopan.weebly.com/uploads/1/3/4/4/134444940/wemegujajitesiw-xabijajimaxuwos-fukokivij.pdfIn PDF document text
    • https://zobirifojufegot.weebly.com/uploads/1/3/4/3/134374070/2ba43c.pdfIn PDF document text
    • https://cdn.sqhk.co/vobipibomuk/y0hdPje/71394944748.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xasovewipeje/90924983575.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17b30e6e-dd5b-415c-9670-7f7973a8c068/mekovuzasowabawim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7888c17f-68e9-49c6-a86c-d3b6aa53125b/imobiliarias_de_governador_valadares.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd68539e-06e3-4baf-a22f-231e14fea63c/geico_horror_movie_commercial_blonde_girl.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b167de02-a14e-4be7-8450-d5563f0e2101/brain_integration_therapy_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f4d20f4-ef06-46e6-bd85-7825a93597b6/kenmore_elite_dishwasher_665_user_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bedc25d2-14c2-441b-8d6c-ba3aa22c6c2b/wuvekisugidizimijogopir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/026f35ec-1265-4199-8d24-6d5ca1dc7d8c/anthem_chapter_1_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/bufipevuril/catholic_mass_readings_2018.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD02 5292 bytes
SHA-256: 6e4219dddccaedc005bf87091b2eb379c6e225bbc14c23cc76bf714af833b506
font_01_sfnt_off0000eecc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEECC 2660 bytes
SHA-256: 3576dd373b651515f47e23d31ed66261cdf4600bff3365b97b89943213537ffa
font_02_sfnt_off0000fa37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA37 10300 bytes
SHA-256: 0f025bea45a7322d8a311f5457f2fa1914277ce8983a024fe99e991b2c413c3b
font_03_sfnt_off00011da6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DA6 16320 bytes
SHA-256: 844cb084336e143bceaacd7de948136837ca80d958068760f33a7e0e858d23f1

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