Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ab2211bf0773551…

MALICIOUS

PDF

75.7 KB Created: 2021-03-08 18:07:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 19999a1df2e46ed262ce6ded883b15dd SHA-1: 5b5621fd9d82b059fdbb25fad807756487f2714e SHA-256: 2ab2211bf077355136026d9897f9b0abf81b9a282c644bf8f13f7d0ede247a70
166 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 as malicious by ClamAV and an ML classifier. It uses a password-protected-archive lure. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://jacksth.ru/123?utm_term=ringtone+song+music PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4386834/normal_600106704b964.pdfIn PDF document text
    • https://cdn.sqhk.co/xibidodoko/Fgf6Oji/63112599406.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470687/normal_60407d860b31b.pdfIn PDF document text
    • http://tradestaroffice.com/xuvedek8cgb.pdfIn PDF document text
    • https://cdn.sqhk.co/tixukiko/fttIShi/heart_anatomy_appendage.pdfIn PDF document text
    • http://bupimobim.sportsontheweb.net/fugase.pdfIn PDF document text
    • https://cdn.sqhk.co/guwewaxa/ih5djfm/over_1._5_goals_soccer_predictions_for_today.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390056/normal_602ed6776eea0.pdfIn PDF document text
    • https://cdn.sqhk.co/felolavap/QgcdbhM/withings_cardio_scale_manual.pdfIn PDF document text
    • http://hs-life.ru/51708658991i1q67.pdfIn PDF document text
    • http://ygrash.website/brandy_melville_promo_code_2021d8s5p.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420014/normal_5fc6fad4b1d36.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375080/normal_603c65b085860.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450889/normal_601952f4b1d88.pdfIn PDF document text
    • https://cdn.sqhk.co/gizoxemovefi/iiNgchf/zombie_hive_2.pdfIn PDF document text
    • http://sadogiropi.mypressonline.com/betuwukodegam.pdfIn PDF document text
    • http://prizinsta.online/jacques_derrida_the_animal_that_therefore_i_amw5oyl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486201/normal_5feccd8312d31.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://derasowuras.epizy.com/51115969481.pdfIn PDF document text
    • http://vawirir.atwebpages.com/midonebigelarasidubujit.pdfIn PDF document text
    • http://vekabun.myartsonline.com/vematosek.pdfIn PDF document text
    • http://xopibakexozar.epizy.com/how_much_is_1_dollar_to_naira_in_the_black_market.pdfIn PDF document text
    • http://zedofaxuboz.onlinewebshop.net/how_much_is_a_2020_camry_hybrid.pdfIn PDF document text
    • http://petizitopebil.epizy.com/kojosepojotabiro.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_off0000ecc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECC7 4788 bytes
SHA-256: 07b878f30a2eaadcac5d588a2dd61fd4f13391350905e1a1d2d91eedf789c0b4
font_01_sfnt_off0000fd16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD16 10616 bytes
SHA-256: 41acc4f8691e73336c8d2a3caa31c50643dc837694304ed398da84e95c95c989

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