Malicious PDF — malware analysis report

Static analysis result for SHA-256 d34c353a01e00937…

MALICIOUS

PDF

72.1 KB Created: 2021-02-11 20:43:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 995f10a4c0b6f4f2b091dfbcf784b547 SHA-1: b4ef98c7d645b3b2a4aab50e09313d440b313ff6 SHA-256: d34c353a01e0093704db323c1ff1abf1b0ddb82577d34a5493f994d44019a12a
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/wix?keyword=stickpage+unblocked+henry+stickman PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4458412/normal_5fed2a11c7c93.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368763/normal_60216d8631408.pdfIn PDF document text
    • https://vutubazedo.weebly.com/uploads/1/3/2/7/132740780/a1fa4eb.pdfIn PDF document text
    • http://rekabiw.22web.org/the_answer_just_listen_movie.pdfIn PDF document text
    • https://totuseki.weebly.com/uploads/1/3/5/3/135322554/gedeni.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449395/normal_5fc98562d389e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486969/normal_5fd22dd08e89d.pdfIn PDF document text
    • https://cdn.sqhk.co/numavagoko/IpU2Thf/master_crafters_gift_primitives_shoppe.pdfIn PDF document text
    • https://nogikukejigili.weebly.com/uploads/1/3/0/8/130873965/2934506.pdfIn PDF document text
    • https://cdn.sqhk.co/zijopenuxafi/ejbXIgg/pujubipuxikobidonat.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451350/normal_5ffb05cbe7eff.pdfIn PDF document text
    • https://cdn.sqhk.co/ditetona/hihaidY/sonic_boom_show_episode_1.pdfIn PDF document text
    • https://fapudunaga.weebly.com/uploads/1/3/0/7/130776769/bonesuwaziv.pdfIn PDF document text
    • https://kefelewupu.weebly.com/uploads/1/3/4/7/134711224/7858960.pdfIn PDF document text
    • https://www.yupi.ioIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bubeto/estrategias_de_mercadeo.pdfIn PDF document text
    • https://s3.amazonaws.com/xukanomarexumu/rebelution_courage_to_grow_album.pdfIn PDF document text
    • https://s3.amazonaws.com/bisegilupuf/chrome_latest_update.pdfIn PDF document text
    • https://s3.amazonaws.com/mavixu/ponisatovopix.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_off0000dac1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAC1 5896 bytes
SHA-256: 59b5029b47e82357c20362e9cf276e654f7b6dc6d1500603243b5c23ee3303c0
font_01_sfnt_off0000eead.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEAD 10620 bytes
SHA-256: 00ebe15effbdf505b5f4eeb0741f7a89469ea3ea862d742ff46869bb183b822a