Malicious PDF — malware analysis report

Static analysis result for SHA-256 10dbafed98154630…

MALICIOUS

PDF

68.2 KB Created: 2021-02-25 20:48:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f157d0ae6266bc1f75e2433945bc5fb1 SHA-1: 7f2ee25c1d3515097bbc2c8bc771b3ef7f042f80 SHA-256: 10dbafed9815463099c038c9095ed90576194215159e7530761ff22555efa5f5
126 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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/award?keyword=how+to+reset+vivint+panel+frozen PDF link annotation
    • https://cdn.sqhk.co/gofelaxes/hnCjIja/93677422130.pdfIn PDF document text
    • http://thrivewebs.com/jikesenixetirajibeketifnjgfr.pdfIn PDF document text
    • https://cdn.sqhk.co/vekokoze/ehgpghc/wewop.pdfIn PDF document text
    • https://cdn.sqhk.co/paxabuxutujo/ifjjjbz/coffin_nails_short_black.pdfIn PDF document text
    • http://good-production16.site/video_call_app_for_laptopjilcp.pdfIn PDF document text
    • https://pigiburoletu.weebly.com/uploads/1/3/2/6/132695467/pixemepigusujar_gobojotiten_kulikogogo_lumawe.pdfIn PDF document text
    • https://runogobikekeg.weebly.com/uploads/1/3/5/3/135350887/2875138.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/jalasilunaz/ireport_for_windows_7_64_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/fajixe/xonukuwawilo.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/brine_leas_uniform_policy.pdfIn PDF document text
    • http://jelalesixavab.epizy.com/what_factors_influence_ethical_behavior.pdfIn PDF document text
    • http://perexuwofogefo.onlinewebshop.net/73700302938.pdfIn PDF document text
    • http://ribuxuvotamu.rf.gd/85724793350.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_off0000d053.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD053 5056 bytes
SHA-256: 8d7cc7b7a79ba8308b288bb4577162fe15eba0f35fce109cb6dedbd7bea6130d
font_01_sfnt_off0000e1b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B1 10024 bytes
SHA-256: 4e91aad3634aa523ef1f798536e53cf805c4a5f01d723f225e2d05fd82438a29