Malicious PDF — malware analysis report

Static analysis result for SHA-256 429419ba4f023d39…

MALICIOUS

PDF

76.7 KB Created: 2021-05-14 06:48:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: f21248b3b5f528629e3760738bb5578a SHA-1: c83965163ada79bda2d029514b92f67f7e81cfa8 SHA-256: 429419ba4f023d39a5aa82f3f2a48188b392361361e9527628cbf278d0c63a2a
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan threat. It contains numerous embedded URLs, with a primary focus on directing users to domains like 'mezovuduw.ru' and 'quinzsy-studio.design'. The document body, though heavily obfuscated, suggests a lure related to a '2006 ford focus service manual', likely to trick users into clicking the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://mezovuduw.ru/strik?utm_term=2006+ford+focus+service+manual PDF link annotation
    • http://quinzsy-studio.design/al_ghazalivd1u4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471236/normal_601df9f8847d4.pdfIn PDF document text
    • http://healthytrands.com/79478499054ustzl.pdfIn PDF document text
    • http://zatuzosej.iblogger.org/admission_letter_template.pdfIn PDF document text
    • https://kijaxupujik.weebly.com/uploads/1/3/2/6/132695195/sisakatevopojo.pdfIn PDF document text
    • https://biwimukapol.weebly.com/uploads/1/3/1/3/131398517/e672335945c.pdfIn PDF document text
    • https://zeduxuvanoripi.weebly.com/uploads/1/3/0/7/130775880/a1350af29f42ede.pdfIn PDF document text
    • https://fiwisiroveton.weebly.com/uploads/1/3/4/3/134339953/wuriwivawufanuraw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4529149/normal_5fd3c422d3dde.pdfIn PDF document text
    • https://kevavabine.weebly.com/uploads/1/3/1/4/131406582/sabesuxifo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409102/normal_605b6e0bb3c5f.pdfIn PDF document text
    • http://covidcapsule.world/john_gray_books_download9dpr7.pdfIn PDF document text
    • https://reseviris.weebly.com/uploads/1/3/5/4/135400779/gujeri.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1b0425b-0e6a-45f7-a2c8-95937aa6ff5e/is_k-lite_codec_pack_safe_to_install.pdfIn PDF document text
    • http://beritoka.rf.gd/acknowledgment_of_paternity_form_dss_4418.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ddbf45da-d3a1-4366-bb3c-115255e19b75/turoji.pdfIn PDF document text
    • http://tedajeti.rf.gd/habitos_alimenticios_en_nios_de_primaria_en_mexico.pdfIn PDF document text
    • http://tikixowogozomi.epizy.com/34397464841.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9abd5770-a47a-458e-bfad-4d1edf958468/verb_tenses_english.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_off0000ee0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE0E 5560 bytes
SHA-256: 5d165c598045cece817843eead36a20040ee42e70e66a1a031501c74fcb5fcf7
font_01_sfnt_off000100e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100E8 10896 bytes
SHA-256: e306396f98cee935e1222f4f5bad0dcd5609cb7a565fad2079913d879d8b6a21

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