Malicious PDF — malware analysis report

Static analysis result for SHA-256 04820251276487d2…

MALICIOUS

PDF

92.7 KB Created: 2021-03-14 09:42:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 0b89057fe324c2240eaeebee410b65a1 SHA-1: 14a4712c4d2f4f1397852f57b2b8e3594792a42d SHA-256: 04820251276487d2fa37c5ac3a1744a366cffb374bf179c3e128b5e3492dd3e9
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL pointing to a suspicious domain, identified by heuristics and ClamAV as a phishing/malicious document. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, appears to contain references to 'flashpoint comic series' and 'modern luxury interior design', likely serving as lures to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://soxebez.ru/strik?utm_term=flashpoint+comic+series PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4494433/normal_5ff9df7ac6370.pdfIn PDF document text
    • https://cdn.sqhk.co/pixazizaze/Yie44Kq/34109897932.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412568/normal_601556239efcf.pdfIn PDF document text
    • http://lufoveferezudu.22web.org/al_kahfi_free.pdfIn PDF document text
    • https://cdn.sqhk.co/dutebevon/dgdNizj/31261751652.pdfIn PDF document text
    • https://cdn.sqhk.co/ranetixeba/jdYjacc/yeezy_350_bred_restock.pdfIn PDF document text
    • https://cdn.sqhk.co/wowixepis/PggPggG/flying_larva_game.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485313/normal_5fca89df96de8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407562/normal_5fd3c91d5b344.pdfIn PDF document text
    • https://cdn.sqhk.co/makekajet/jm8Gwgc/65585722468.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405662/normal_5fc6cb409eb94.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/20b88f77-5870-4c82-ba6f-c03fff23c2b6/what_is_modern_luxury_interior_design.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b838d8b9-8896-4814-a03d-3e0b1c0b91fb/tumutifenusenefowedora.pdfIn PDF document text
    • http://wunozoviwo.epizy.com/pimiranadirodozenagid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df0c90e0-3dc9-44f8-8bc1-7384ddad78c3/33449173170.pdfIn PDF document text
    • http://ridezajumoso.epizy.com/bifej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76dc8ea2-d8b2-4efb-adfc-811f1bd686db/mary_poppins_returns_songs_can_you_imagine_that_full_song.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53b9ed32-ca5a-4c34-80a5-38fe1ff5adce/97872959244.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3348bd5d-d4b4-4a79-b1ed-f4d75532c5f7/71211932221.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14b078d2-9b93-46be-9a35-147354b6006a/40805682326.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/245bb5f8-85fd-4f27-9afa-b858af38c9ea/mr_coffee_maker_user_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2ed41bd-2e6f-4628-a12c-95ded66d7130/how_to_write_a_restaurant_review_on_yelp.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b289e14f-0c47-4131-9335-7afe53065a38/14150466027.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/746fb064-aad2-499d-bffe-93ec50f0ba34/34632077117.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d30d0ec5-69ac-4d4f-8c86-966f37b9d34a/76290952304.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_off00012d96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D96 5128 bytes
SHA-256: c722485b889d548d41bf54b52c7f4eb7063c91e5fb9f8b9466e026c70c9895f6
font_01_sfnt_off00013ede.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13EDE 11396 bytes
SHA-256: 81d4d7c1d095e3abfc3d798433b22fb12f43e70fc707400d8cf8168aed768cdb

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