Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce0b0582003165db…

MALICIOUS

PDF

79.8 KB Created: 2021-01-28 09:44:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 057ebf81ce0fa9c407646d8c7b46fd11 SHA-1: 780b3a9079985158ed937f5a2fbca469c411a158 SHA-256: ce0b0582003165db18c611c402a95e4bf6ee66faa22b82655fdc10a34a2d5029
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URL pointing to a suspicious domain, identified by ClamAV and ML classifiers as malicious. The document body, though heavily obfuscated, suggests a lure related to a 'Huskee 46 riding lawn mower manual'. The presence of an external URI and the overall detection by security tools indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/123?utm_term=huskee+46+riding+lawn+mower+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4502493/normal_600372587eb46.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494883/normal_5fe076519a3af.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453329/normal_5feb560200f04.pdfIn PDF document text
    • https://cdn.sqhk.co/vekuperik/hh6qWDF/pidup.pdfIn PDF document text
    • https://cdn.sqhk.co/vaxikinanibu/gijfPig/city_car_driving_download_android_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444353/normal_600c63ea0911b.pdfIn PDF document text
    • https://cdn.sqhk.co/wadusazilox/jfigbja/51719579372.pdfIn PDF document text
    • https://cdn.sqhk.co/dosakupu/gib4VfL/zelufusejivaketotajitu.pdfIn PDF document text
    • https://cdn.sqhk.co/vamunidibu/Ejejfar/pegugajuvikakezosewam.pdfIn PDF document text
    • https://cdn.sqhk.co/vadetegubufo/h0uEKic/fubagaxazisev.pdfIn PDF document text
    • https://cdn.sqhk.co/navuwamas/bigigib/foxopufogema.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443809/normal_6006b50e83580.pdfIn PDF document text
    • https://cdn.sqhk.co/xasakeza/hijcTaq/friends_tv_hd_wallpaper_download.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://s3.amazonaws.com/feliso/kipakasuvipo.pdfIn PDF document text
    • http://kidagemomosate.epizy.com/tomijotomexoboditokobuke.pdfIn PDF document text
    • https://s3.amazonaws.com/dumupa/sejuv.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_off0000edf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDF1 5304 bytes
SHA-256: 043a4d56b18280459b646f2e5f2df47191f5fa5f1fa7888a3636156b8d37383f
font_01_sfnt_off0000ffeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFEB 10440 bytes
SHA-256: b69630b29e45a2b7ef6d8980147f4ccc09a55b379ba2d4f079398388422d5737
font_02_sfnt_off000123a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123A2 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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