Malicious PDF — malware analysis report

Static analysis result for SHA-256 be13e4e97187de67…

MALICIOUS

PDF

69.6 KB Created: 2021-03-20 17:49:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 98f4bed3f755bd0292e5d16a36bf1c13 SHA-1: 56d60b1044422425f9c4f4c212ae45abb04bac16 SHA-256: be13e4e97187de6781420ec5751a57de298821bc9131c8a9cd8c29a2ff852e5d
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 0.9998

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://leonvi.ru/strik?utm_term=leading+african+country+in+economy PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4386087/normal_5fd6e5e44a97c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451760/normal_601dff27ae4b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448746/normal_60170ae1ebc0d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489969/normal_601e0bad40ef8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403814/normal_5fcbe080959a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494440/normal_6041d6465b7b3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408482/normal_60036e2e1d8df.pdfIn PDF document text
    • http://pewujok.mypressonline.com/pekenipadeliparasunuz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391599/normal_602c0f841ba77.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393632/normal_603c8106b5f82.pdfIn PDF document text
    • http://zoguponuwuxoli.medianewsonline.com/lady_of_the_lake_witcher.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426425/normal_601afd0865f6e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454048/normal_5fee119a650f4.pdfIn PDF document text
    • http://sopugepibimel.mypressonline.com/calisthenicmovement_mobility_program.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/7aea6884-de1a-446c-adba-45f3fa96b34b/2011_jeep_grand_cherokee_parts_diagram.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b290b6e-5b8e-4f92-b424-f59edf0fa3ae/12236663551.pdfIn PDF document text
    • https://s3.amazonaws.com/doxifuba/sulupatibigirevobes.pdfIn PDF document text
    • https://s3.amazonaws.com/tiluwisulepam/attack_on_titan_season_3_part_1_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/79250420941.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_off0000d301.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD301 5176 bytes
SHA-256: 18b8b2d3bfad7a16268627e6a49711444a4d47d9f7a659f0a596bcb78e2bb3d9
font_01_sfnt_off0000e499.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE499 10952 bytes
SHA-256: 0ad8f887d1fa49e5d0fb2ec3186eb7f3ba9ae79786f271bcb583a5b267bddfbe

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