Malicious PDF — malware analysis report

Static analysis result for SHA-256 38c59a01854d1407…

MALICIOUS

PDF

72.4 KB Created: 2021-03-28 18:25:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: e5a8a970437df8e1097977c390a3dd29 SHA-1: 43da03acc49b04fdf70776935e3d31a54753e49a SHA-256: 38c59a01854d14077d7de52603beaca3fcddfbaa7a17962168cfda484cc12fd5
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. ClamAV and ML classifiers strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though heavily obfuscated, contains text related to garage door openers, suggesting a lure to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://mezovuduw.ru/strik?utm_term=what+does+it+mean+when+your+garage+door+opener+blinks PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4480884/normal_602ace3da6cfb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477630/normal_5fe88345e174f.pdfIn PDF document text
    • http://pimebujeben.66ghz.com/coordinate_plane_printable.pdfIn PDF document text
    • https://cdn.sqhk.co/kivipemo/igjogi7/nixotaxap.pdfIn PDF document text
    • https://cdn.sqhk.co/pananumujo/gpVgidw/fisinifalu.pdfIn PDF document text
    • https://cdn.sqhk.co/vizelupavew/aIhfsje/lilozafire.pdfIn PDF document text
    • https://cdn.sqhk.co/balekunu/ZkihdTp/funny_answer_for_how_are_you_doing.pdfIn PDF document text
    • https://cdn.sqhk.co/xajevedu/iltXhe7/rugovolagiropinukuwol.pdfIn PDF document text
    • http://surevixa.22web.org/rulon.pdfIn PDF document text
    • https://cdn.sqhk.co/ludibipimilu/R2NSqGu/thrifty_car_rental_melbourne_airport.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480591/normal_602b615de30c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492575/normal_604d08d0ea9ca.pdfIn PDF document text
    • https://cdn.sqhk.co/kotafuli/iIGgdgf/beclometasone_e_formoterolo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480397/normal_605d5b21847a1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/01d2d910-fee4-4b1d-92b5-48f4a453bea7/cant_install_adobe_acrobat_pro_dc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/794a3c5f-8503-484d-9d46-adfae37f1862/far_side_of_the_world_lyrics_buffett.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e882913-4949-4b08-9319-de410ef429ea/momivixak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c72443c-94d8-4cc6-bdf0-5536705b2f9a/73748455447.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05ed5804-5a37-4a8b-9715-0204852133d4/zimurililozapiv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96aa3730-1da5-452b-899b-883bf78da2bf/ford_mustangs_for_sale_autotrader.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3b946e8-9b78-479e-a761-bb849af937b0/12762391080.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/672ae0bd-8e8c-476e-9ec6-d8be271c4093/death_stages_kubler-ross.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d16b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD16B 5668 bytes
SHA-256: 1b7f6c0d770e3c2ac66a69a04b813dc83832010eaab1562658d448f833505c77
font_01_sfnt_off0000e498.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE498 9780 bytes
SHA-256: 427ecf55586fc41485b78c66ad16abf6d400d3434e1f06dda3248b69b1edf5ff
font_02_sfnt_off000105f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105F9 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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