Malicious PDF — malware analysis report

Static analysis result for SHA-256 9867342174988f48…

MALICIOUS

PDF

74.3 KB Created: 2021-04-03 05:27:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-13
MD5: af93efa58cff0ae56ea124a3753918e4 SHA-1: 08d0f74d903fcd5b2b4efc78f58261518a171512 SHA-256: 9867342174988f48094120191c4d3c57aa064d9981c8e4b9a62b89ae741a5e8f
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains embedded URLs pointing to a suspicious domain, identified as a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The document body, though heavily obfuscated, appears to be a lure related to a product manual, aiming to trick users into visiting the malicious URL.

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://xezojetit.ru/wix?keyword=aroma+induction+cooktop+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4382004/normal_6062c0db31e4b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501193/normal_5fc8dbea24901.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388063/normal_6066e1943c26c.pdfIn PDF document text
    • http://xudisoda.66ghz.com/learn_autocad_2013.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455406/normal_5fd7b33229e50.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445750/normal_60595c51c96ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365655/normal_6050021dd3c1e.pdfIn PDF document text
    • http://pojapusevipuzu.mypressonline.com/smartphone_addiction_definition.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489033/normal_602cf2ca630a6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://6f465708-eb37-4ee2-8658-ebeec6cd93ea.filesusr.com/ugd/4bb103_86321d3ef5c941da9f94a9216e347d28.pdf?index=trueIn PDF document text
    • http://muxuzuvom.epizy.com/jasabad.pdfIn PDF document text
    • http://puredaw.rf.gd/electron_beam_theory.pdfIn PDF document text
    • http://fogabifotu.rf.gd/tratado_de_bucareli.pdfIn PDF document text
    • https://492f55f4-3442-4b37-b17e-39d9f2f0ae8a.filesusr.com/ugd/7dfe85_30c2e5a037ee47e7a1789cb55e053e46.pdf?index=trueIn PDF document text
    • https://8df9d1b7-8f6e-49e1-bdac-c9da4d4291fd.filesusr.com/ugd/12c198_2ebf9875f7a5410f9ef71212704169ab.pdf?index=trueIn PDF document text
    • http://gidiruroxab.rf.gd/volinoxenaderipimis.pdfIn PDF document text
    • https://39c10a3a-92c6-412a-a1bb-b8a1fc48fbc4.filesusr.com/ugd/259099_bf6a175af9cb4be887241b013f194eb7.pdf?index=trueIn PDF document text
    • http://desejole.myartsonline.com/benim_hocam_ders_notlari.pdfIn PDF document text
    • http://feliruxitekul.epizy.com/pirated_software_sites_list.pdfIn PDF document text
    • http://pakakebif.rf.gd/rusis.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_off0000e45a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE45A 5096 bytes
SHA-256: 00ea2c9ec39dd906b71aac094ca9f2898c6274c0b6fa6fd89eff541ec95c8c42
font_01_sfnt_off0000f598.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF598 11408 bytes
SHA-256: 8d5f015160473d72769e246235883b0eacddf0c2b1c25f62c2e4765c204936aa

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