Malicious PDF — malware analysis report

Static analysis result for SHA-256 22d5f1a3abf75c2a…

MALICIOUS

PDF

78.3 KB Created: 2021-03-28 07:44:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 328f027a55910b7aed4de3982c94d276 SHA-1: ac951fb6d8adc72a175f3418642f99e527ff34b7 SHA-256: 22d5f1a3abf75c2aa2895025049994dbac71279f1a5673b8bcdeb2131ff4cb97
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a specific ClamAV detection name indicating it's a phishing trojan. The PDF contains an embedded URL pointing to a suspicious domain, which is likely intended to deliver a payload or phish for credentials. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/award?keyword=les+quadrants+abdominaux+et+leurs+contenus+pdf
    • http://wedidizelajat.mypressonline.com/82859113301.pdf
    • http://indital.fun/proteus_7_kullanminptb.pdf
    • http://memaberenux.scienceontheweb.net/14537046705.pdf
    • http://genoray.pro/bepotigixikalirieaqtz.pdf
    • http://mjawebdesign.net/fasupifezovas13n.pdf
    • https://static.s123-cdn-static.com/uploads/4479212/normal_5ff995ee36b8c.pdf
    • http://temppicture.xyz/twilight_full_movie_in_hindi_part_2_download_720p_filmyzillauugu1.pdf
    • http://timecodes.net/walmart_covid_vaccine_near_me4j8yo.pdf
    • http://wotukujis.sportsontheweb.net/92539194377.pdf
    • https://cdn-cms.f-static.net/uploads/4456399/normal_6045075c75b63.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tiwosutodegadax.onlinewebshop.net/amba_shambhavi_lyrics_in_telugu.pdf
    • http://fowakoleviwamop.onlinewebshop.net/45629355396.pdf
    • https://s3.amazonaws.com/petubapizo/significado_de_la_palabra_uniforme_en_espaol.pdf
    • https://s3.amazonaws.com/pibajuwi/mapovewipakagomokum.pdf
    • http://fuluxewamotate.atwebpages.com/wuguledo.pdf
    • https://s3.amazonaws.com/nisoxow/19533584607.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef18.bin
d8b57808442e32af0773cca5cc3ce5cb480fec74421d04c1c1c76cb2dea838c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF18 5576 bytes
font_01_sfnt_off000101f9.bin
76327f5a16a579da6f530a0f97c752860992af2ed7895fa7bcc0bd0ed992ad86		 pdf-font-stream PDF embedded font (sfnt) at offset 0x101F9 13572 bytes

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