Malicious PDF — malware analysis report

Static analysis result for SHA-256 0008cc259aaff553…

MALICIOUS

PDF

77.9 KB Created: 2021-03-29 21:59:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: e6f62348c710b9430d6dbd36a0bc88f4 SHA-1: b3426384abd2c414a1ba2c0fac1119a93f976911 SHA-256: 0008cc259aaff5532666e5d8fb3c30cddd5d3982584441309b707265bf7a8810
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external URIs, with a primary one disguised as a printer troubleshooting guide, likely intended to redirect users to a malicious site. The PDF's structure and embedded links suggest it's part of a link farm designed to host phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://lozipotod.ru/strik?utm_term=how+to+reset+hp+photosmart+5520 PDF link annotation
    • https://wonuraje.weebly.com/uploads/1/3/5/9/135983109/2936117.pdfIn PDF document text
    • http://fiziwafofekaku.mygamesonline.org/pesuwizarikafokiwevonala.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375087/normal_601459527bb56.pdfIn PDF document text
    • https://zazibarem.weebly.com/uploads/1/3/0/7/130775746/4065347.pdfIn PDF document text
    • http://katorewudejizut.22web.org/kupomik.pdfIn PDF document text
    • http://my-favshope.online/23975691580tdbc0.pdfIn PDF document text
    • http://kushtanash.ru/44968917751roljn.pdfIn PDF document text
    • https://cdn.sqhk.co/pakebisas/iegficH/samiruwupeloxuzimemajazi.pdfIn PDF document text
    • http://filitopalanima.22web.org/vista_128_programming_software.pdfIn PDF document text
    • http://goldstein.capital/23693934076qdnjv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367627/normal_6002d7ed3d2f1.pdfIn PDF document text
    • https://cdn.sqhk.co/vokalater/hhwLmjd/begidusevinugigutivironi.pdfIn PDF document text
    • http://xutefizil.getenjoyment.net/5795002733.pdfIn PDF document text
    • http://216tilford.com/texezifubamigoj5n7ue.pdfIn PDF document text
    • https://cdn.sqhk.co/jimumakevaji/wgchgEz/zevuledipupixozikugi.pdfIn PDF document text
    • https://cdn.sqhk.co/luxanimev/coz9jft/nike_air_penny_3_performance_review.pdfIn PDF document text
    • https://cdn.sqhk.co/xetasenuwoji/7gjq8gj/commercial_property_rental_inspection_checklist_template.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fekatenomevikot.epizy.com/34814362900.pdfIn PDF document text
    • http://japinoxizidunub.myartsonline.com/alter_ego_francais_a2.pdfIn PDF document text
    • http://malakevuxe.epizy.com/19424402511.pdfIn PDF document text
    • http://kiwozoma.epizy.com/aimee_semple_mcpherson_books.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_off0000f08c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF08C 5480 bytes
SHA-256: b34a89a87e63692f73357d1c439430711965558264cdea400d7fa27642eee76d
font_01_sfnt_off00010314.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10314 11104 bytes
SHA-256: 1401d19ff9085c670d7df8a07d0604b2e37cadae2f29ece4b6f7681e9f318fe7

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