Malicious PDF — malware analysis report

Static analysis result for SHA-256 62213ef14a938497…

MALICIOUS

PDF

80.8 KB Created: 2021-03-03 06:07:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 6526d25d8b04a9551b08151ebf07a413 SHA-1: 29535cec44d8833a38c6064775243636fad9759a SHA-256: 62213ef14a938497214f333bae7df6655b133aab9d7caf5d2145ed7b2d1c8f04
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, appears to be a lure related to snowblower instructions, aiming to trick the user into clicking the malicious link.

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://golowaki.ru/strik?utm_term=how+to+start+toro+snowblower+with+electric+start PDF link annotation
    • http://dle-tpl.site/25968132098yx9kh.pdfIn PDF document text
    • http://ridunculus.com/luwopowe62zkw.pdfIn PDF document text
    • https://cdn.sqhk.co/molipigi/jjWjhjf/mapewonezuligefes.pdfIn PDF document text
    • https://cdn.sqhk.co/jaziwuke/4gjlPnr/hd_girly_wallpapers_for_mobile_phones.pdfIn PDF document text
    • http://1xbet-registr.site/world_war_z_on_netflix_australiammk7o.pdfIn PDF document text
    • http://mini-cam1.club/atom_ion_or_isotope_worksheet_answers94n95.pdfIn PDF document text
    • https://weligolujevis.weebly.com/uploads/1/3/4/7/134748453/pesati_xisigomovifix.pdfIn PDF document text
    • http://gamedv.design/las_brujas_de_eastwick_librofq426.pdfIn PDF document text
    • http://vulgargirls.fun/jezifitidaxikenoburode0qza3.pdfIn PDF document text
    • https://cdn.sqhk.co/budotedo/jbARhg5/carriage_hill_insurance.pdfIn PDF document text
    • http://astropsychology.site/pigujobipotazupmqah.pdfIn PDF document text
    • http://erogan-columbia.site/panivalalvnow8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rurovikejigibu/avancemos_2_unidad_4_leccion_1_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/18727623630.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/46201052298.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/sobarekisajabidazofe.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001017f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1017F 5080 bytes
SHA-256: 4291147da57b15c52170e30c54e8b0d04ca46130942b4325efa96e2184d65dd2
font_01_sfnt_off000112cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112CF 10212 bytes
SHA-256: 78d170cb725539142de33c979dad219da1f8cf43809fd3be1fd977e5abef51c3

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