Malicious PDF — malware analysis report

Static analysis result for SHA-256 842407defb952ebb…

MALICIOUS

PDF

72.6 KB Created: 2021-03-04 16:16:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b675ffe290d58f65112946bfb2ddddb5 SHA-1: 4e4c2427c4c548d676028627a14202527a5cd4aa SHA-256: 842407defb952ebbb23bffc5d6ebef7e9a3cb8dec6bf85b8adbbdedf72facaac
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • 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.
  • 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://golowaki.ru/award?keyword=bq-cc+17+sba PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4419851/normal_5fefd8bba669c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494440/normal_5fcd0052cfbc2.pdfIn PDF document text
    • http://okstore.info/35236247899nk31o.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473656/normal_5ff125a4b71ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388424/normal_6013790bd17a2.pdfIn PDF document text
    • http://kedepoba.sportsontheweb.net/ejercicios_online_agudas_llanas_y_esdrujulas_5o_primaria.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497666/normal_603172069df24.pdfIn PDF document text
    • http://rufoferapavinew.medianewsonline.com/fl_studio_plugins_pack_free_download.pdfIn PDF document text
    • http://tadosuzewamu.medianewsonline.com/tosozojusozel.pdfIn PDF document text
    • http://storeplus.pro/watebivibenewofudumiho3dj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383136/normal_6031575655ada.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456143/normal_5fc8b27f323cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409604/normal_6025ba869daae.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385852/normal_5fdca414acb07.pdfIn PDF document text
    • https://cdn.sqhk.co/benibavagoge/igbRl1P/bottle_shooter_game_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421776/normal_601332427b9b5.pdfIn PDF document text
    • https://cdn.sqhk.co/girolivudafo/jghgdLa/electric_train_station_near_me_to_nyc.pdfIn PDF document text
    • http://fashion-deals.xyz/xevenix73w6d.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/37768248-e9d1-422b-a297-c49c2db17ce0/zosazewuliretadimex.pdfIn PDF document text
    • http://bifovigavij.myartsonline.com/sakokujaxabetibiges.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2305588c-99c5-49b6-bd11-4f974c3a3b45/schlage_keyless_lock.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33424048-6e24-40da-a8f8-0736f5848790/82309517390.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_off0000df00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF00 5144 bytes
SHA-256: acb4ae1a208f702847a42df910e7a9614f3646b0c56e70092935f4ce33158ecc
font_01_sfnt_off0000f0b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0B3 10676 bytes
SHA-256: a6743aa70171687122d59309d33e1b8159c18206b26635833c2bfcf89967ee41

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