Malicious PDF — malware analysis report

Static analysis result for SHA-256 14b5745804e452c4…

MALICIOUS

PDF

72.2 KB Created: 2021-02-22 17:55:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 3434dbfa82829a3f1e26c33b4f776e98 SHA-1: e6ef48d8f3b0c8f049e25342078c569af0139fb0 SHA-256: 14b5745804e452c463908ce391a900a635cb5a602a1d9bd96763c6da89c4f4ae
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://pupinalakarer.weebly.com/uploads/1/3/4/2/134234580/433049.pdf In PDF document text
    • https://xefobizedep.weebly.com/uploads/1/3/1/6/131636625/jakekidemik-sinuma-kimarixotem-modapagoxolejam.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378628/normal_602d3088a0fde.pdfIn PDF document text
    • https://bijawodit.weebly.com/uploads/1/3/4/8/134883407/sovasotetisidapip.pdfIn PDF document text
    • https://bufudelazevel.weebly.com/uploads/1/3/4/7/134734798/tajepopuwomojoz-takarupafel-nefananulaj-bewosoze.pdfIn PDF document text
    • https://dobamadolexazi.weebly.com/uploads/1/3/4/4/134478964/a3743cf603f.pdfIn PDF document text
    • https://terekutididir.weebly.com/uploads/1/3/0/9/130969195/jupoxedidobumavutiz.pdfIn PDF document text
    • https://sonoxezepokamev.weebly.com/uploads/1/3/3/9/133999938/3274077.pdfIn PDF document text
    • https://tuwozuzoleza.weebly.com/uploads/1/3/4/5/134509843/bujovewak.pdfIn PDF document text
    • https://maypoin.ru/wb?keyword=formuler%20z7+%205g%20iptv%20set-top%20box%20PDF link annotation
    • https://maypoin.ru/wb?keyword=formuler%20z7+%205g%20iptv%20set-top%20box%20(2019%20versieIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dowadotiju/at-_lp60-_bt_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/gowupuzokowuxes/zemikezibomeboviwaf.pdfIn PDF document text
    • https://s3.amazonaws.com/tinivukedeta/gutibotumafosezurixixajal.pdfIn PDF document text
    • https://s3.amazonaws.com/tinivukedeta/venegapoxajuzizinagopejiz.pdfIn PDF document text
    • https://s3.amazonaws.com/tokit/moxub.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/account_recovery_turbotax_form.pdfIn PDF document text
    • https://s3.amazonaws.com/dinisemowoge/jezuzudevafikajinikiraga.pdfIn PDF document text
    • https://s3.amazonaws.com/sifawekujiki/offroad_bike_racing_game_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/jebupofedijakuk/29536461264.pdfIn PDF document text
    • https://s3.amazonaws.com/bezutu/beastmen_warhammer_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/gonima/bomonifigakivudopebe.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_off0000d4ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4CE 6072 bytes
SHA-256: eb487aba60c6a45e7673faa9c56820ca43fb4246a1511afa9edb80bcf6e113d2
font_01_sfnt_off0000e99c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE99C 12088 bytes
SHA-256: 4d113a98b40f1c28de815965db75ef53a84a456cdf9a7c0ea28132bef47409a8