Malicious PDF — malware analysis report

Static analysis result for SHA-256 abee48ec0336efec…

MALICIOUS

PDF

72.8 KB Created: 2021-03-01 14:51:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c1d8385c3ebd19aadc19e4b4336ff017 SHA-1: 335f7d3e12742e3ab997a9d0e98a4a5adc05bd28 SHA-256: abee48ec0336efecb634043c2dffb7580b83b5e1aaacb3a3a638683c513a1de1
204 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 7

  • 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 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://gimoguvi.ru/wix?keyword=mega+ilimitado+apk+2019 PDF link annotation
    • http://fdvsefwfrw.space/karcher_2600_psi_gas_pressure_washer_manualk54gs.pdfIn PDF document text
    • https://muvisodujop.weebly.com/uploads/1/3/4/3/134358588/8971374.pdfIn PDF document text
    • http://fitokapss.xyz/vega_muhasebe_program_full_indir2wq9d.pdfIn PDF document text
    • http://7lessons.site/fire_emblem_awakening_modsfpxfb.pdfIn PDF document text
    • https://veduwasa.weebly.com/uploads/1/3/1/6/131637496/8563146.pdfIn PDF document text
    • http://iminn.ru/lobawu0ayh7.pdfIn PDF document text
    • https://cdn.sqhk.co/baluwofuk/iiyic2A/pc_simulator_games_free_download.pdfIn PDF document text
    • https://kufesivewafe.weebly.com/uploads/1/3/1/3/131384244/xodejukaxunarofoto.pdfIn PDF document text
    • https://pinobuni.weebly.com/uploads/1/3/0/9/130969003/jotuwilalali-tuzidetuxupat.pdfIn PDF document text
    • https://joripulugafu.weebly.com/uploads/1/3/4/3/134318872/lopezozinewubutujado.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/nafoxuda/free_assured_shorthold_tenancy_agreement_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/guwutivupudutu/1080585942.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/sebuturusalebi.pdfIn PDF document text
    • https://s3.amazonaws.com/votawawo/pakistan_studies_mcqs_download_2020.pdfIn PDF document text
    • http://jimomurapujivo.onlinewebshop.net/devizakasom.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dfb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFB4 5556 bytes
SHA-256: 5786f8e88b8f53befe8141c4f740ff97224822d4d4097ce6fe502313d8760bc8
font_01_sfnt_off0000f2aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2AA 10408 bytes
SHA-256: a8952697dd4341a68d88c90cb4bdb21821d690ea7e647f1eb1ef2fddb8fa31d9

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