Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e65cb5b292ed08e…

MALICIOUS

PDF

75.9 KB Created: 2021-03-31 06:17:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: d896933b8aad95049098a9445bcc987a SHA-1: 501754c5db25c84d704562a4b7801f4aa05fc27a SHA-256: 6e65cb5b292ed08ee6761e72b75404326e140a82ff7b5811cb6ade3c5c563757
136 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a phishing lure, using an image to redirect users to an external URL. The ML classifier and ClamAV detection strongly suggest malicious intent. The primary redirector URL is https://bologen.ru/123?utm_term=employee+code+of+conduct+company+policy+template, which is likely used to initiate a phishing attack or download a secondary payload.

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
  • 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://bologen.ru/123?utm_term=employee+code+of+conduct+company+policy+template PDF link annotation
    • http://shop-you.xyz/tratamento_da_anemia_megaloblasticakzdl7.pdfIn PDF document text
    • http://cleaner360.shop/pirufiparanagenasulio48g2.pdfIn PDF document text
    • http://tokio-2020.fun/wosomop93f81.pdfIn PDF document text
    • http://winfreeiphone.xyz/nest_doorbell_install_guidex7neh.pdfIn PDF document text
    • http://creamspait.xyz/altec_lansing_super_lifejacket_jolt_review5c3pg.pdfIn PDF document text
    • http://padigixatobezu.22web.org/free_fire_battleground_apk_revdl.pdfIn PDF document text
    • https://cdn.sqhk.co/bikugipozamu/Xigivja/pelowukajotivoxif.pdfIn PDF document text
    • https://xizenajagixofus.weebly.com/uploads/1/3/4/6/134657686/6465995.pdfIn PDF document text
    • https://cdn.sqhk.co/niserutom/iibibge/21086512209.pdfIn PDF document text
    • http://trokot-newshop.online/libalusjj6w6.pdfIn PDF document text
    • https://duzareledibasa.weebly.com/uploads/1/3/4/8/134890493/jojazuvuxesifu.pdfIn PDF document text
    • https://powinategirax.weebly.com/uploads/1/3/4/7/134736766/duwimite.pdfIn PDF document text
    • http://yewes.fun/slam_jam_bluetooth_speaker_reviewuzdho.pdfIn PDF document text
    • https://cdn.sqhk.co/fipimomozuk/gjesgia/513167854.pdfIn PDF document text
    • http://umkatrade.ru/mr_heater_big_maxx_parts7u1mo.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/jixerubowi/52828361537.pdfIn PDF document text
    • http://kopuperoki.epizy.com/crusaders_of_light_guide_shadow_knight.pdfIn PDF document text
    • https://s3.amazonaws.com/setikizo/the_vortex_abraham_hicks.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/12390377006.pdfIn PDF document text
    • http://sejisetelasisel.epizy.com/29517293030.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/ironman_louisville_2019_race_report.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_off0000eb9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB9F 5088 bytes
SHA-256: 4f53cb22f65ae14f01da12c0b9dd790587d25ac4c69e0944f4848a960ddeecfb
font_01_sfnt_off0000fced.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCED 10424 bytes
SHA-256: 10bc6a82876f9a86b29fb93d97b1e042e42e19db5977e9e062a251534091c1a7

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