Malicious PDF — malware analysis report

Static analysis result for SHA-256 38714d3a29cee8c0…

MALICIOUS

PDF

76.3 KB Created: 2021-03-27 20:36:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: db786b6601ca4ea1b43a905db2972a27 SHA-1: b22865dfb4721ddac5d2712e9aa146559a428a1c SHA-256: 38714d3a29cee8c0e88a70917b8fee6215bc0f07cb9aeb9489819f39c398f429
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a malicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to financial information, which is a common tactic for phishing attacks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/123?utm_term=axis+bluechip+fund+factsheet PDF link annotation
    • https://cdn.sqhk.co/libobivole/jhMgjge/ice_hockey_skates_ccm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415051/normal_605310e0b9b9c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453734/normal_6029e3724deb7.pdfIn PDF document text
    • http://instacopyrightcenter.com/869585969002jvwk.pdfIn PDF document text
    • https://cdn.sqhk.co/kovezozeseg/jhhidFN/carx_drift_racing_lite.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488842/normal_604bc55669485.pdfIn PDF document text
    • https://cdn.sqhk.co/leluforeref/g9IvAFU/adaptive_autosar_vector.pdfIn PDF document text
    • http://islta.fun/wingstop_locations_mapldqd8.pdfIn PDF document text
    • http://vesimawamom.66ghz.com/facebook_sdk_integration_android.pdfIn PDF document text
    • http://airet.space/subway_menu_price_canadaclt0u.pdfIn PDF document text
    • http://rollernefrit.xyz/elliott_jaques_requisite_organization73c2c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377101/normal_600d70cd82ee0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zufarelizija.epizy.com/41659033558.pdfIn PDF document text
    • https://s3.amazonaws.com/sorogamat/chain_guide_bicycle_srl.pdfIn PDF document text
    • https://s3.amazonaws.com/sifawekujiki/fire_drill_template_australia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e30e5357-e7ea-4913-8947-6be9ef41dc9f/resumen_de_libro_para_leer_el_pato_donald.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4dfaf7f3-8a33-4f5c-9387-e22440fc7953/71641580752.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cdfe0d14-8acf-4563-bfc8-30ce50244955/what_does_4_beeps_on_a_carbon_monoxide_detector_mean.pdfIn PDF document text
    • https://s3.amazonaws.com/wenobagupexekap/rukazopimikeminutadux.pdfIn PDF document text
    • http://jujujinoxilumaz.epizy.com/curso_tecnico_de_tecnologia_da_informao_senai.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagoba/what_does_navient_lawsuit_mean_for_borrowers.pdfIn PDF document text
    • https://s3.amazonaws.com/wulagisi/bepugiwaje.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d5ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5BA 5344 bytes
SHA-256: b83a8e90b69c42c068b4ba6463d8e229c177d21db11e8f9c4616bfb6e6473359
font_01_sfnt_off0000e7eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7EB 11564 bytes
SHA-256: fa8679653d69d33d1f6083e350dc10456554453fa1dccb23a6f3746c6e1e6f48
font_02_sfnt_off00010e92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E92 16164 bytes
SHA-256: c41fc46809d2260d2d1a821cef6bb00dae560fdbad380da94a93f29d012df54e

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