Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c03b6bdd13b3a13…

MALICIOUS

PDF

87.6 KB Created: 2021-03-17 15:21:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 75ea81d1bae23b72dc2aec63a98a890d SHA-1: daa7286621e03e46ecd208d1742599f0a89b67bf SHA-256: 2c03b6bdd13b3a136776c203b6a7d17d0986ab29d5f6b47d211ee38fc35e3875
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9993

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=beclomethasone+dipropionate+dosage+forms PDF link annotation
    • https://cdn.sqhk.co/pojuzijix/ehfiinp/verizon_member_id.pdfIn PDF document text
    • https://cdn.sqhk.co/zuvaworizon/tthgrhd/bollywood_movies_2018_with_english_subtitles.pdfIn PDF document text
    • https://cdn.sqhk.co/panazomuv/heOEQhF/68573039008.pdfIn PDF document text
    • https://cdn.sqhk.co/tamupoto/Xjhuzgd/zagegufufebekoselonex.pdfIn PDF document text
    • https://cdn.sqhk.co/gitovera/aighaPf/worms_zone._io_voracious_snake_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/mefomixut/jhijhs0/pobrecita_traducir_en_ingles.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388420/normal_600a2965772f4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387712/normal_604e19a997583.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389616/normal_601aa49f68b1c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471514/normal_601e57d70278e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415936/normal_60102a0edc074.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386836/normal_60300c0fcb443.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419193/normal_6029d0c4f3c77.pdfIn PDF document text
    • https://cdn.sqhk.co/jimavidozeze/a4v18dY/beat_bop_pop_star_clicker_mod_apk.pdfIn PDF document text
    • http://dazopodupikud.22web.org/bepofugozip.pdfIn PDF document text
    • https://cdn.sqhk.co/muzewutipifa/MQhjeic/sapumo.pdfIn PDF document text
    • https://cdn.sqhk.co/susojitigi/jfjjTgh/wovirepasadu.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/f51493ea-e650-4256-ab35-45175a548edb/22895199577.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08612a7e-1170-40a6-8ad2-1c153021ede6/best_push_pull_legs_5_day_split.pdfIn PDF document text
    • http://kosejoviwo.epizy.com/77704168817.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fca5d8f7-fbf6-40fe-ab7f-f3a44f9a9446/how_do_i_reset_my_honeywell_thermostat_th8110r1008.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f6bf032-f33d-4afe-af7c-b85b9173c5dd/95206822961.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8e67e4e-68a4-49c7-a23e-9e06d3671ee4/ribubu.pdfIn PDF document text
    • http://kojosire.epizy.com/nuvopesamotuxajopoliwixu.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_off00011596.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11596 5616 bytes
SHA-256: e3af4e8f040895ee4e78706011a9e1167c20a6dccfd69831cb1c878a46857276
font_01_sfnt_off00012881.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12881 11784 bytes
SHA-256: bfe28dfa9cad8adaa3309989e83bf00539c14a4b49cef4fb2ce1ac61f912ea19

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