Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc47e4c7c780dbaf…

MALICIOUS

PDF

76.0 KB Created: 2021-04-16 08:13:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6cb255a8ed5eafbf693bd891eb52cb97 SHA-1: 6e1a7df7068e9175cfce38dcd0bdfd14768ecf42 SHA-256: bc47e4c7c780dbafa8bee313310900d05f5f9f66d49f0e1e543976baf02e905d
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to exploit user interaction via a deceptive lure.

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://botokaw.ru/strik?utm_term=vampire+diaries+script+season+1+episode+2
    • https://cdn.sqhk.co/viwiratoposu/bzyTmsP/dead_zed_3_notdoppler.pdf
    • https://cdn.sqhk.co/zunezafi/3jhCmxv/75629477815.pdf
    • http://bivaxosufuxibo.mygamesonline.org/isometric_dot_grid.pdf
    • http://figimumagoko.mygamesonline.org/fixujikomovekosevax.pdf
    • https://cdn.sqhk.co/bagadogod/1hagghj/xekujuxavegetiresut.pdf
    • https://cdn-cms.f-static.net/uploads/4475738/normal_605a69c5ae37e.pdf
    • https://cdn-cms.f-static.net/uploads/4367632/normal_605dd9f65eff8.pdf
    • http://vijevejumozugim.sportsontheweb.net/sudafositulize.pdf
    • https://cdn.sqhk.co/sowojusawepu/ibRhas2/escan_antivirus_free_for_windows_10.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/dfa12255-a780-421d-ac41-f17a19a20b88/poulan_pro_gas_blower_parts.pdf
    • http://teluroluxeterez.myartsonline.com/bigmouth_strikes_again_tab.pdf
    • http://vawirir.atwebpages.com/biodata_format_for_marriage_in_marathi_language.pdf
    • http://najekaweza.onlinewebshop.net/sonoserowamediginimej.pdf
    • https://uploads.strikinglycdn.com/files/902bd737-8fc5-4978-baf9-456bb1e3fe01/ge_logiq_e_service_manual.pdf
    • https://s3.amazonaws.com/jolozidabi/boss_engira_baskaran_movie_tamilyogi.pdf
    • http://laxolagodofomug.onlinewebshop.net/cultural_hegemony_theory.pdf
    • https://uploads.strikinglycdn.com/files/db277fb4-2d83-410a-9ab1-fdd740ee211a/how_to_make_crochet_blanket_edges_straight.pdf
    • http://pasulupumorowim.myartsonline.com/basic_electronics_components_list.pdf
    • https://uploads.strikinglycdn.com/files/5b8588de-342b-458f-b867-77f85e289ce8/87514938793.pdf
    • https://uploads.strikinglycdn.com/files/f4a1cce3-db81-49e9-8f72-dc2a9611b028/the_skin_im_in_movie_antonio_banderas.pdf
    • https://s3.amazonaws.com/muvazi/68570704082.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb80.bin
8d1ae7dcde2826483d1f5e7d8d06340e08594aadf949f6d016b9f7faca1dd1b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB80 5336 bytes
font_01_sfnt_off0000fd99.bin
7226da40f2cfdf2b7cd728ca56222a00886094b632e52b813badf59afbf37544		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD99 10932 bytes

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