Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad0f3067ba3604d6…

MALICIOUS

PDF

74.9 KB Created: 2021-04-27 12:34:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: e3ad2419e84710863169352c301678d9 SHA-1: 331b20cbf26797b58156b9bb4b42ae200ca3df8c SHA-256: ad0f3067ba3604d6dcdfd6907b83be319ab2d0248fae99f87c204d7b87390107
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support the malicious nature of the file. The document body, though partially corrupted, appears to mimic a search result for a common appliance problem to entice clicks.

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://lozipotod.ru/strik?utm_term=whirlpool+bottom+freezer+ice+maker+not+making+ice PDF link annotation
    • http://wijetaz.mypressonline.com/7730439340.pdfIn PDF document text
    • https://cdn.sqhk.co/letareximo/hb8ijif/23088214245.pdfIn PDF document text
    • http://lebojabufi.medianewsonline.com/fernando_sor_guitar.pdfIn PDF document text
    • https://cdn.sqhk.co/judixixelof/bghgU7E/concepto_de_analisis_foda.pdfIn PDF document text
    • https://cdn.sqhk.co/pirujezexod/hhijhjD/fiben.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/45bd4542-42e2-4ef6-b19d-bcabf45da324/self_determination_theory_of_motivation.pdfIn PDF document text
    • https://s3.amazonaws.com/buponuwebi/81963523805.pdfIn PDF document text
    • http://xedavabawavela.onlinewebshop.net/gigagamim.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/technical_analysis_of_stocks_india.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b79334bc-234c-4546-9f3a-34fccac8346d/esio_trot_book_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/suxuzubojut/what_is_the_average_cost_to_print_a_black_and_white_page.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70f236eb-4c8e-4d07-b3f0-1dfde39cf979/46408977393.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53414560-82c1-4cac-bbdf-840399357cdb/25201991357.pdfIn PDF document text
    • https://s3.amazonaws.com/poguvelefa/27264555400.pdfIn PDF document text
    • https://s3.amazonaws.com/warapagefasovi/mojezawoxadimis.pdfIn PDF document text
    • https://s3.amazonaws.com/waxegatulo/lufipidemagapepoxebige.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/nys_mandated_reporter_training_free.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_off0000e6dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6DD 5520 bytes
SHA-256: e70c3ba44c910f575f960708320e21bb1303e5898bac5ed05ac84591e96c3163
font_01_sfnt_off0000f98e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF98E 10704 bytes
SHA-256: 531a542ead152b71f9a05773c79dab122b3639cfde4ab3cb8b7f2aa2a09b8a37

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