Malicious PDF — malware analysis report

Static analysis result for SHA-256 9047197d7b450df9…

MALICIOUS

PDF

68.2 KB Created: 2021-02-20 17:36:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d5752593316cbfc04e2eb2c3797a29f0 SHA-1: 589f515663f04eb8a44ad3fe436556de880fceb8 SHA-256: 9047197d7b450df9a5164626eedd7dc64220e033e74ec568f0bc5960d8590420
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://druttle.ru/wix?keyword=wen+4212+vs+4214 PDF link annotation
    • https://cdn.sqhk.co/wimedizi/d9TgjJW/47168655131.pdfIn PDF document text
    • https://mixuvuweti.weebly.com/uploads/1/3/1/4/131483588/xotenagamoborukeres.pdfIn PDF document text
    • https://wubigunes.weebly.com/uploads/1/3/4/5/134507070/rokubena_sojaxipusegig.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485309/normal_5fe2486bca762.pdfIn PDF document text
    • https://duzesoduvumasu.weebly.com/uploads/1/3/4/1/134131570/gagogufarezutasa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455387/normal_602d83ee72640.pdfIn PDF document text
    • https://wexotagupoma.weebly.com/uploads/1/3/2/8/132814474/didivojenoxejede.pdfIn PDF document text
    • https://pijawofixogut.weebly.com/uploads/1/3/4/0/134017865/fc7bdf1d14.pdfIn PDF document text
    • http://repair-kompov.ru/froggers_grill_bar_mt_dora_flhfxj2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402718/normal_5fe0d3c37401d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375504/normal_6021c24ee1dad.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/juvosi/gukixameselapotupe.pdfIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/firmenich_international_sa_annual_report_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/wovitiku/free_ekg_certification_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jenagubadopi/android_toolbar_shadow.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_off0000d0cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0CF 4684 bytes
SHA-256: 396924f32d42731a112f2940a10377ae7057021f86d08851d5f6a73373d51cc3
font_01_sfnt_off0000e0f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0F9 10336 bytes
SHA-256: 068b2b6a14b67e4ea391bc7781f4012c5e85ed5b8d0a304235be7f2f0b16c331