Malicious PDF — malware analysis report

Static analysis result for SHA-256 a606b45206d6ac52…

MALICIOUS

PDF

78.3 KB Created: 2021-02-11 21:59:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 8c086e34229ba5ba4f151913252e40b4 SHA-1: a033be075fc4dfb65e92a687e3ec1f9a1c376604 SHA-256: a606b45206d6ac525d26423a69234d0eadaf7fcb1595eeeb9c83cd3516c5b367
254 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wb?keyword=bhairava%20telugu%20songs%20free In PDF document text
    • https://cdn.sqhk.co/ketifoseja/dWifibC/69290354062.pdfIn PDF document text
    • https://semizafug.weebly.com/uploads/1/3/1/8/131871859/pidute.pdfIn PDF document text
    • https://wemovimezatura.weebly.com/uploads/1/3/4/6/134611727/6a3249b526a290a.pdfIn PDF document text
    • http://tinutig.22web.org/chapbook_manuscript_format.pdfIn PDF document text
    • https://cdn.sqhk.co/ganuniwiku/ilyoTDw/73242251810.pdfIn PDF document text
    • https://cdn.sqhk.co/xeduwukaxusa/nidijwV/84897049842.pdfIn PDF document text
    • https://jimurapixow.weebly.com/uploads/1/3/5/3/135399705/5969b86.pdfIn PDF document text
    • http:///\/sangeethaswaralu.blogspot.in\/2013\/05\/naruda-o-naruda-song-lyrics-from.html,video_url:,zoomit:0,premium_content:0,is_premium:0,preview_url:null,rest_lev:0,rest_msg_free:null,rest_msg_paid:null,_e:0,aes_enabled:1,aet:1,release_date:AprIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tutasujal/3436622079.pdfIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/37659372084.pdfIn PDF document text
    • https://s3.amazonaws.com/xixonu/72294715552.pdfIn PDF document text
    • https://s3.amazonaws.com/pibabopuduj/91619695660.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/junekefovunokaju.pdfIn PDF document text
    • http://balubusepebibi.rf.gd/best_horror_movies_2018_tamil_dubbed.pdfIn PDF document text
    • http://penoputibilexo.rf.gd/daguxenazetefova.pdfIn PDF document text
    • https://s3.amazonaws.com/divikufifir/bhojpuri_chaita_3gp_video.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_off0000f402.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF402 5140 bytes
SHA-256: 7264b6174278c2ab59bc7ddb8e2784dadf28da49329463fa7a2aa397973416f9
font_01_sfnt_off00010586.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10586 11576 bytes
SHA-256: 3e8d3eac21ab266f989784349446a5fbb115096bcff280db61b7f39e83a578e8

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