Malicious PDF — malware analysis report

Static analysis result for SHA-256 58a96172907d79e2…

MALICIOUS

PDF

72.6 KB Created: 2021-03-03 02:45:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 29afce92c903ce4c26188290d7408a13 SHA-1: 3fa65d07fa7066b2b0eb5021ccaed80b9d65279f SHA-256: 58a96172907d79e27e08133f3df0967a7c8ba961b642038d7f30404705047ad9
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://fokemale.ru/award?keyword=the+time+traveler%2527s+wife+full+movie+free PDF link annotation
    • https://pigukoziluluz.weebly.com/uploads/1/3/4/8/134896600/jegagivufisu_tazulofas_tonar_fupupafo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447885/normal_603923642f190.pdfIn PDF document text
    • http://igafnd.org/bear_snores_injj5r7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415309/normal_6002a723dcdf5.pdfIn PDF document text
    • https://cdn.sqhk.co/sejejajoxej/9573Xii/dino_battle_simulator_war_survival_game_2019_download.pdfIn PDF document text
    • http://testvvd.xyz/117000121784wy3x.pdfIn PDF document text
    • https://woninulanomawij.weebly.com/uploads/1/3/4/6/134670754/temesojove.pdfIn PDF document text
    • https://xurexesezegurez.weebly.com/uploads/1/3/4/0/134096141/2d7762519c8.pdfIn PDF document text
    • http://1freedom.space/whatsapp_apk_mirror_android_2._3sjnem.pdfIn PDF document text
    • https://matelusa.weebly.com/uploads/1/3/1/4/131406649/degudawemiligeboxavi.pdfIn PDF document text
    • https://cdn.sqhk.co/lilodipu/hjGgihc/51346272056.pdfIn PDF document text
    • https://wabelurotetef.weebly.com/uploads/1/3/4/6/134693048/9205da269c6.pdfIn PDF document text
    • https://cdn.sqhk.co/lepapina/gggjgeX/10423574640.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/xanunafojuloki/arya_samaj_bhajan_free.pdfIn PDF document text
    • https://s3.amazonaws.com/welanisowari/febuwidilawuduwenijufene.pdfIn PDF document text
    • https://s3.amazonaws.com/legapatatezisa/vejufomi.pdfIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/jubib.pdfIn PDF document text
    • https://s3.amazonaws.com/xijalovelokolep/94977213057.pdfIn PDF document text
    • https://s3.amazonaws.com/waxegatulo/scientific_calculator_exe.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/pojemoxuvi.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_off0000e157.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE157 5144 bytes
SHA-256: e837fedf2f1ee557c5f15eb5bfb3ca0b9b524a3030edb06a256250657b7e977c
font_01_sfnt_off0000f2c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2C1 10056 bytes
SHA-256: 7db3821a53a9cdcd85f7d49ddbfee9b7b17af36703aea2f8029036c49a26d0d0

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