Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f07e264101a861a…

MALICIOUS

PDF

87.4 KB Created: 2021-05-01 07:52:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8679739b68fa2fb4f0c9e0210d9fa37d SHA-1: e6fc7191f23bac25e7f74cef47ca9aa8d377d6d9 SHA-256: 7f07e264101a861ad7d8cfbad412f2441834b4c65af02f1081f9c0bedb54873e
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, 'xezojetit.ru', which is likely used to deliver a secondary payload or conduct phishing. The document body, though heavily obfuscated, contains references to a book title and application names, suggesting a social engineering lure.

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://xezojetit.ru/strik?utm_term=the+shock+doctrine+book
    • http://velesvoyage.ru/the_weatherly_guide_to_drawing_animals_dvd_volume_onel9hjp.pdf
    • http://reestr.site/starbucks_coffee_rate_in_indiaubtio.pdf
    • https://cdn.sqhk.co/rifojimuna/kmshfii/kinafi.pdf
    • https://cdn-cms.f-static.net/uploads/4380881/normal_5fd295ad8d438.pdf
    • https://cdn.sqhk.co/xolanikipiz/hhbaXp6/zivetatopab.pdf
    • https://static.s123-cdn-static.com/uploads/4411944/normal_6007dc9835779.pdf
    • https://pupaxuge.weebly.com/uploads/1/3/4/0/134096873/sewuwosafiv_gozinujakiriz.pdf
    • http://goodnaturak.space/rofirinuzokigufkgi1t.pdf
    • https://mefuwowenapes.weebly.com/uploads/1/3/4/6/134611128/30a63761b61d.pdf
    • https://cdn.sqhk.co/savadapo/1Pgi1tN/xipuvovupazaw.pdf
    • http://mazers.fun/22007086716ce0wd.pdf
    • https://cdn.sqhk.co/wibetaxor/fijfham/angry_gran_run_game_free_download_for_laptop.pdf
    • https://teparapilaw.weebly.com/uploads/1/3/4/4/134477765/sajaterap.pdf
    • http://yildirimotobursa.com/eclipse_free_for_ubuntu_14._04xcxv3.pdf
    • http://ses-sanobrabotka.ru/back-_on_awesome_bestp273z.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/jefobexapulow/bekikoteladow.pdf
    • https://s3.amazonaws.com/jarawaxanivu/wejolezujuzeli.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010b55.bin
f39b88084a6a692868195f39dd2d5c788655281ec7c0f8f1219019340c3b5e98
pdf-font-stream PDF embedded font (sfnt) at offset 0x10B55 3724 bytes
font_01_sfnt_off00011896.bin
648f611b083a308c544e5b40fb603fc032bd2e662311203251cc552c90ed3b9f
pdf-font-stream PDF embedded font (sfnt) at offset 0x11896 4936 bytes
font_02_sfnt_off00012955.bin
391e42ea6b6f09419cbeae113692a1ea8f75506c3e4ebca2e2ab845d6448724f
pdf-font-stream PDF embedded font (sfnt) at offset 0x12955 12240 bytes