Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5d9009bbb0944be…

MALICIOUS

PDF

72.1 KB Created: 2021-03-04 02:46:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1ddf2f1c2ee6f63ee80de59c7192880e SHA-1: d5a3ade7704d9611a928d4748f433b89c1c00a3e SHA-256: e5d9009bbb0944bed2464265a52e38f8b7432a35182573fb301707175d187914
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/wix?keyword=the+way+of+the+wolf+martin+bell+pdf PDF link annotation
    • http://insta-sale.site/govawabunapezatinrgjz.pdfIn PDF document text
    • https://xonuguzuv.weebly.com/uploads/1/3/1/3/131382030/bfb62bd45.pdfIn PDF document text
    • http://zobotalemogi.sportsontheweb.net/how_to_adjust_throttle_on_pocket_bike.pdfIn PDF document text
    • http://wosozage.mypressonline.com/dudukeroreviverazagixu.pdfIn PDF document text
    • https://movalibixijol.weebly.com/uploads/1/3/2/6/132682530/zaritan_jafudave.pdfIn PDF document text
    • http://gifinibufenatar.medianewsonline.com/28341825829.pdfIn PDF document text
    • http://lessonsonline.site/82992588513zo3bl.pdfIn PDF document text
    • https://bikujezojodu.weebly.com/uploads/1/3/4/5/134587809/843e00b6711fd.pdfIn PDF document text
    • https://timakopazasiri.weebly.com/uploads/1/3/4/4/134445807/fuwixijem-ropugofig-nuxatid-vadizafuvelofom.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/xunilukegez/does_netflix_have_mockingjay_part_2.pdfIn PDF document text
    • https://s3.amazonaws.com/jamuluvuvava/vusenaripulokutofozup.pdfIn PDF document text
    • https://s3.amazonaws.com/lawakux/zalefiv.pdfIn PDF document text
    • https://s3.amazonaws.com/savifin/julius_caesar_by_william_shakespeare.pdfIn PDF document text
    • https://s3.amazonaws.com/semuxemakaw/ottoman_empire_history.pdfIn PDF document text
    • https://s3.amazonaws.com/pavujiniz/39284061307.pdfIn PDF document text
    • https://s3.amazonaws.com/guxosa/polaroid_sun_600_lms_manual.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_off0000d2b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2B1 5384 bytes
SHA-256: 02a5f157a97ab546e06e2211e205b905c68149395894607445f2552d754785b5
font_01_sfnt_off0000e4ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4ED 14944 bytes
SHA-256: 515da43e68993844d5d27398cd962b961f3ce526b15c267ff1238ddc588dca7e