Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffe08a71f2514298…

MALICIOUS

PDF

74.6 KB Created: 2021-02-19 09:37:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 8b126ddb9a327c50462f37a417a0d938 SHA-1: 1173de14e40be03deb0bec9405efe1b17d5f00ba SHA-256: ffe08a71f251429860fad45fb6258691873da7bd4fae922429b1b35b8b2973c7
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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=fishing+guide+ffxiv+ocean PDF link annotation
    • https://wafulezejo.weebly.com/uploads/1/3/4/7/134748518/1943356.pdfIn PDF document text
    • https://cdn.sqhk.co/jefapukawore/zdieZii/nick_rivett_sports_shop_hove.pdfIn PDF document text
    • https://cdn.sqhk.co/jimikafede/hbghv6E/20438472239.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450351/normal_602812a85ef44.pdfIn PDF document text
    • https://wunobenera.weebly.com/uploads/1/3/4/8/134887230/gemibafijox.pdfIn PDF document text
    • https://nilizexuv.weebly.com/uploads/1/3/0/7/130739046/tageguti.pdfIn PDF document text
    • https://cdn.sqhk.co/wimiwupo/jajiL6r/19242763477.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/feborobegibew/49293524806.pdfIn PDF document text
    • https://s3.amazonaws.com/pezofut/20441643611.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/jozitaninataloxarewip.pdfIn PDF document text
    • https://s3.amazonaws.com/juduk/13061724105.pdfIn PDF document text
    • https://s3.amazonaws.com/kulinisokakewi/mailchimp_for_wordpress_form.pdfIn PDF document text
    • http://daxepusiz.rf.gd/64366956349.pdfIn PDF document text
    • https://s3.amazonaws.com/gidibesuxi/how_to_cite_a_website_without_author_or_date_mla.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/kanijapateg.pdfIn PDF document text
    • https://s3.amazonaws.com/gonafoziguwewe/bams_am_full_form.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e77f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE77F 5236 bytes
SHA-256: d229b6424b5c2c3d54b66fbffded712ea21830501a73b5a277be522f33777216
font_01_sfnt_off0000f963.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF963 10504 bytes
SHA-256: bcbb2a9a23f86cf1fa65314032cfa9d7de4f78a2eb1192c34f9cd6092e4f9427

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