Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed02b2dafe561cba…

MALICIOUS

PDF

72.1 KB Created: 2021-03-02 16:49:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4de8bbd6c5bef9d250b3a1afeea17cb9 SHA-1: b2cdf192e981cdc349928f5ce8a7d6fc3c94fcd5 SHA-256: ed02b2dafe561cba223f91b2098d5439eccc7593ebb273905a31c8f3bc85b436
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/award?keyword=genie+intellicode+not+working PDF link annotation
    • https://giwelexe.weebly.com/uploads/1/3/0/8/130814055/banozufu_tesomig.pdfIn PDF document text
    • https://jifefovemerozix.weebly.com/uploads/1/3/4/4/134444698/5570372.pdfIn PDF document text
    • https://dubitofux.weebly.com/uploads/1/3/4/4/134458445/koguf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457272/normal_60214d7802082.pdfIn PDF document text
    • http://femonejigajape.mywebcommunity.org/pidesisizepebepamu.pdfIn PDF document text
    • https://joxureduragup.weebly.com/uploads/1/3/0/8/130874613/dajijit-mazimitizom-bufudulupefi.pdfIn PDF document text
    • http://zegererevez.medianewsonline.com/how_to_remove_battery_from_motorola_flip_phone.pdfIn PDF document text
    • https://lisiruzefixa.weebly.com/uploads/1/3/4/4/134495270/5415006.pdfIn PDF document text
    • https://labekefetimobu.weebly.com/uploads/1/3/0/7/130739294/kexorizazisizum.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/vogubivajavofu/filaxuxi.pdfIn PDF document text
    • https://s3.amazonaws.com/mamukawaxatali/life_after_english_version_apk_obb.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/62110934819.pdfIn PDF document text
    • http://bavotuvezomevi.myartsonline.com/72728260594.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/horoscope_matching_app.pdfIn PDF document text
    • https://s3.amazonaws.com/gelawiweza/first_birthday_cake_topper_template.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_off0000e09b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE09B 4904 bytes
SHA-256: 3afcb3589df3ede4ebd9b9afebb68e16c108fa83672db66f85447d18f469730f
font_01_sfnt_off0000f173.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF173 10004 bytes
SHA-256: a7c1f5eeec9dcf1aad0ffa452c3bb227d50d950d25fba7a199eb64e398151b0a