Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6ae93c71987c525…

MALICIOUS

PDF

69.7 KB Created: 2021-02-21 07:19:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7d86f942c6171282d1245bf77b940592 SHA-1: beb5db89208cee8ffe4dda6b361a3cb9d70f8cbb SHA-256: f6ae93c71987c525653b1d42a4b1a6ef0860e9a23737028658b16df0b231c050
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=zenonia+5+unlimited+zen+apk PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4417807/normal_600cfaa9c19d3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386822/normal_600254e659a39.pdfIn PDF document text
    • http://skout.tech/35084568281i40tr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389821/normal_60168d21ebed7.pdfIn PDF document text
    • https://cdn.sqhk.co/mudinaxape/jbgeSgv/13734825933.pdfIn PDF document text
    • http://mon-cmbretagne.best/beat_cop_switch_gameplayvc9do.pdfIn PDF document text
    • https://bewogataxatux.weebly.com/uploads/1/3/2/6/132695278/50877ce4a9.pdfIn PDF document text
    • http://kurs1.xyz/vince_advanced_language_practice_2020p56a3.pdfIn PDF document text
    • http://swiss-gear-top.xyz/heterocyclic_amines558t3.pdfIn PDF document text
    • https://mitebisaxu.weebly.com/uploads/1/3/5/3/135395238/vusoxivafuvaf_lugopu_fosalipoz.pdfIn PDF document text
    • https://sirukume.weebly.com/uploads/1/3/0/8/130814715/nupekiwu.pdfIn PDF document text
    • https://cdn.sqhk.co/wepunajexiju/ja3maia/xugisipoziwapulej.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rozipiliwune.epizy.com/great_depression_causes_effects_and_timeline.pdfIn PDF document text
    • http://xuxegukazo.rf.gd/ariete_picasso_manuale.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_off0000d599.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD599 5028 bytes
SHA-256: 0a4544da4c9d0259802e27dd6cedf2d2ca13244e56825c4771c3099231fce22b
font_01_sfnt_off0000e6b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6B6 10392 bytes
SHA-256: 772eea1bae4f18f7cad3e885ff13fe6e15237f7d9ab7c5812267f1420a2ac1ae