Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0a8528f481b8abd…

MALICIOUS

PDF

89.3 KB Created: 2021-02-27 23:09:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: f48d62a6464b54d3c162a8d5d3f52cb6 SHA-1: 0cce68009566be1b3a0df92a11bca1e78d40ccf0 SHA-256: d0a8528f481b8abd98783566852f4682a79fdad5cbae75ced8910b587b2baba9
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://gimoguvi.ru/123?utm_term=calamity+quotes+brandon+sanderson PDF link annotation
    • http://pasendapp.online/the_cancer_journals_audre_lorde143u3.pdfIn PDF document text
    • http://goossyy.online/14800216783y9nze.pdfIn PDF document text
    • http://kalavar.xyz/71639732425q64bi.pdfIn PDF document text
    • http://mazers.fun/foduzuvarijunukigzpfe.pdfIn PDF document text
    • http://stonersfranchise.com/how_to_make_simple_fog_makerap0rq.pdfIn PDF document text
    • http://reduslim-official.website/60473420535clj4j.pdfIn PDF document text
    • http://ag-management.space/coloring_book_for_familyts1dw.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/sukedil/barron_s_essential_words_for_ielts.pdfIn PDF document text
    • https://s3.amazonaws.com/dopugaxelelema/different_ages_of_english_literature.pdfIn PDF document text
    • https://s3.amazonaws.com/guxosa/evil_dead_tamil_full_movie_tamilrockers.pdfIn PDF document text
    • http://linexiziretewoj.rf.gd/zk_fr1200_datasheet.pdfIn PDF document text
    • http://sobikunukozi.rf.gd/nirokifupulolilo.pdfIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/sjcam_sj4000_air_4k_wifi_aksiyon_kameras_inceleme.pdfIn PDF document text
    • http://fubavinexazixo.onlinewebshop.net/20736914677.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000feaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEAA 5244 bytes
SHA-256: 885a663203e4d524e89f608eba3039c70008335a11dbcdc114ddfaeacc96cb25
font_01_sfnt_off00011059.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11059 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off000118e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118E6 11124 bytes
SHA-256: e2bec20ca9a650ea2f5c19548809918b430a20146eb956a9e1dae02ccb4304ec
font_03_sfnt_off00013f08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F08 17704 bytes
SHA-256: a79cb9a8b0391a60dacdf070b63329be26c931d6aaa6bd8d2e0cc9549b124ba5

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