Malicious PDF — malware analysis report

Static analysis result for SHA-256 02fa092ad2f4c3f5…

MALICIOUS

PDF

70.8 KB Created: 2021-03-03 16:56:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: b38ad2a3aebdbe360d04c3a94df30248 SHA-1: fbc5acb270b08cb3c3a64142276f6304a98552df SHA-256: 02fa092ad2f4c3f52e83e9e34fc05d907cb7ab0341fe210a5daea736b34a0530
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL, https://fokemale.ru/wb?keyword=toro%2020331%20drive%20cable, suggests a phishing lure disguised as a product search. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing campaign, likely using a spearphishing attachment vector.

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://fokemale.ru/wb?keyword=toro%2020331%20drive%20cable PDF link annotation
    • http://lunurapezos.iblogger.org/shinedown_new_album.pdfIn PDF document text
    • https://cdn.sqhk.co/leluforeref/hkaCwid/fajokuwemudesixufuxenuxuk.pdfIn PDF document text
    • https://cdn.sqhk.co/sebutarukaw/ja32hdt/cvcc_word_family_list.pdfIn PDF document text
    • https://cdn.sqhk.co/pakebisas/Wjjhgic/79795849734.pdfIn PDF document text
    • https://cdn.sqhk.co/tavedikovo/mhfhefb/buvoxinur.pdfIn PDF document text
    • https://cdn.sqhk.co/woselukafo/eeoNPjd/vobozun.pdfIn PDF document text
    • https://cdn.sqhk.co/rufadexu/bTmdcjg/lawugot.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/vibuvomomuv/agile_methodology_vs_scrum.pdfIn PDF document text
    • https://s3.amazonaws.com/latufenaw/44377562236.pdfIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/digijiwozeman.pdfIn PDF document text
    • https://s3.amazonaws.com/gidibesuxi/what_is_a_good_expense_to_revenue_ratio.pdfIn PDF document text
    • http://gofanukeguwul.epizy.com/brother_pt-1750_tape.pdfIn PDF document text
    • http://nokolul.epizy.com/android_auto_start_app_after_reboot.pdfIn PDF document text
    • http://totofexux.epizy.com/tusaladekegu.pdfIn PDF document text
    • http://timavutiziv.epizy.com/zowuzawegenoxosexi.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_off0000d8b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8B3 5392 bytes
SHA-256: be4bdced735eaa94c577d9b4cfabdb2e9e9813b74c6489681dc531a375218a76
font_01_sfnt_off0000eb1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB1C 10320 bytes
SHA-256: 268a01c00cd17730fa87cddee47c6620bbdac5b2a0a06c3a39a92cc5f6688c15

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