Malicious PDF — malware analysis report

Static analysis result for SHA-256 43f9e79767bc6a72…

MALICIOUS

PDF

65.4 KB Created: 2021-01-24 04:45:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f808ea796e95fd05d1666651597282af SHA-1: 6fc72a3b7fa8dc4fe321b3cd0d93fdccc729e10e SHA-256: 43f9e79767bc6a7200417edd7601bba09b99ad6fc6da1752123bcdbd6076d877
236 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/wb?keyword=playstation%20network%20sign%20up%20uk PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4412778/normal_5feda2f5f31b4.pdfIn PDF document text
    • https://bagawilikazukir.weebly.com/uploads/1/3/1/0/131070307/kezopitemawol-goguxaji-xolonepugun-pivitikibikex.pdfIn PDF document text
    • https://zowadite.weebly.com/uploads/1/3/1/3/131380399/61ef74d.pdfIn PDF document text
    • http://wigomufeze.22web.org/practice_in_identifying_variables_part_1_answers.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388825/normal_600a10ceae255.pdfIn PDF document text
    • https://site-1250423.mozfiles.com/files/1250423/zusewa.pdfIn PDF document text
    • https://walafikug.weebly.com/uploads/1/3/2/7/132740659/397c9b12577e5b4.pdfIn PDF document text
    • https://site-1245421.mozfiles.com/files/1245421/game_android_offline_tanpa_obb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385217/normal_5fd0e29221462.pdfIn PDF document text
    • https://site-1177446.mozfiles.com/files/1177446/hints_for_meepcity_mod_apk.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/gosete/50888193477.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/75103557003.pdfIn PDF document text
    • https://s3.amazonaws.com/bitajemisajoz/81979016388.pdfIn PDF document text
    • https://s3.amazonaws.com/navoburarovada/netitamipuwipanul.pdfIn PDF document text
    • https://s3.amazonaws.com/wutogugej/roxoj.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_off0000c2d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2D2 5244 bytes
SHA-256: 318d15588a1da5c57b2bfa92fcfd784ae448dad34ab0c82b430a5d5b0b662249
font_01_sfnt_off0000d4d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4D6 10448 bytes
SHA-256: 3a42121858bce2bb333dc9d1ea0656b947cdd3f7937120d79efd5fbfc599a4b7

Open this report in the interactive analyzer, or submit your own file for analysis.