Malicious PDF — malware analysis report

Static analysis result for SHA-256 a74da0d519639187…

MALICIOUS

PDF

68.4 KB Created: 2021-02-27 00:18:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 34de240ba591cd8617083c05425492ab SHA-1: db1267a3d97a7b0ee111f358b44538f95c9d8da8 SHA-256: a74da0d51963918718be16479398ad00a9d870918eefc0d3b9f7626ad3a9963f
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xajibur.ru/award?keyword=olympus+om+10+camera+case PDF link annotation
    • https://cdn.sqhk.co/zivuronufepu/hbgcjb4/wing_chun_trainer_unlocked_apk.pdfIn PDF document text
    • https://xuvivodoxanujo.weebly.com/uploads/1/3/5/3/135308848/sazokufetugufeg-mukamezosetu-manekosat.pdfIn PDF document text
    • http://zegererevez.medianewsonline.com/sample_resume_for_pl_sql_developer_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469828/normal_602a081d9643c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414860/normal_5fc89d64b13f1.pdfIn PDF document text
    • https://cdn.sqhk.co/konarolikomu/qghjYie/king_of_thieves_bases_27.pdfIn PDF document text
    • https://cdn.sqhk.co/jivazufevi/hR8jhja/dikepajaginaluvuka.pdfIn PDF document text
    • https://xuwogufovesuvem.weebly.com/uploads/1/3/1/4/131406895/44ecf.pdfIn PDF document text
    • http://nitapida.mywebcommunity.org/vapunure.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387929/normal_60019e30da222.pdfIn PDF document text
    • http://xegazinijitup.mywebcommunity.org/grundig_s350dl_antenna.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488558/normal_6022497e39b1d.pdfIn PDF document text
    • https://cdn.sqhk.co/zogowefu/bhe9riS/five_nights_at_freddy_s_movie_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/wofazexej/hcifgja/gasoduxogafemogelojikefij.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pidodexogejax.myartsonline.com/is_there_a_the_descent_3_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/bufexa/helping_verbs_exercises_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/pirofopafu/enthalpies_of_solution_and_hydration_chemguide.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/pugevopoguf.pdfIn PDF document text
    • https://s3.amazonaws.com/difigomisosak/77976338370.pdfIn PDF document text
    • http://kilarosine.atwebpages.com/gipegudakigabegagowi.pdfIn PDF document text
    • http://nejesezape.myartsonline.com/fishman_sa220_stand_for_sale.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_off0000ceac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEAC 5404 bytes
SHA-256: 388700dc13cbb3cac3c5d52dd157fba0cb5a02e96a06e736cfa07888150a2fca
font_01_sfnt_off0000e0fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0FD 10204 bytes
SHA-256: 39440028e08387e057e452e4c03df1df43b499c8ff746ff09b70f9cdb8aa221a