Malicious PDF — malware analysis report

Static analysis result for SHA-256 693ca4730808d7d3…

MALICIOUS

PDF

66.8 KB Created: 2021-02-13 04:41:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: bf1ffedce47607cec7380a3993450518 SHA-1: c022afc3ea9f3ae40e6b4bf547c357e8d29c2da0 SHA-256: 693ca4730808d7d3be92bb32fa427218c1630dab6666dc45f98e2f7fdddb2524
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jottigo.ru/wix?keyword=hp+scanjet+5590+power+cord PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4457311/normal_5fc8927be0bfe.pdfIn PDF document text
    • https://cdn.sqhk.co/wugeguxu/gtzEb0u/online_pc_games_to_play_with_controller.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371020/normal_60207e82e4899.pdfIn PDF document text
    • https://cdn.sqhk.co/jeporikate/hfynCii/galaga_arcade1up_walmart.pdfIn PDF document text
    • https://cdn.sqhk.co/ronofumito/mjfsAgd/hair_braiding_salon_brooklyn_ny_11212.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456687/normal_5fc8ac3724608.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376382/normal_5ff5c90c8d493.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403685/normal_5ffec3e195ba1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485299/normal_5fff74c4d6bca.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/marimejerebo/58844665777.pdfIn PDF document text
    • https://s3.amazonaws.com/wakuzidi/bakewuvijuzugagenipe.pdfIn PDF document text
    • https://s3.amazonaws.com/tanikanaw/24455309580.pdfIn PDF document text
    • http://fosadexovoz.epizy.com/52580258274.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/vafejogavefuje.pdfIn PDF document text
    • https://s3.amazonaws.com/vipuxafol/jufenutu.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/begijadozez.pdfIn PDF document text
    • http://desavoz.epizy.com/68498710543.pdfIn PDF document text
    • https://s3.amazonaws.com/nerugiraxura/lotitelesumoderekozuna.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_off0000c691.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC691 5584 bytes
SHA-256: 292235ab4227a3f67481108905986f9405b9df7e769bc052982ba876be26b999
font_01_sfnt_off0000d9b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9B8 10656 bytes
SHA-256: 3e8ad751aefc1626a5704fc8e82e08e6840f2ffd1279aedecd4ac25d5a7edea4