Malicious PDF — malware analysis report

Static analysis result for SHA-256 446bc0f19b89579e…

MALICIOUS

PDF

84.5 KB Created: 2020-11-19 19:50:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 863ba1473e10631013367af6f155a67a SHA-1: 96fd6949d31a8d5d682c594a4e3814e58db30cb7 SHA-256: 446bc0f19b89579ee871ba98a117c0811553a412acc22eb3c4dc54e5cf5e721e
156 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 a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://traffine.ru/strik?utm_term=personajes+principales+de+marianela PDF link annotation
    • https://wagofokixe.weebly.com/uploads/1/3/4/6/134694124/nipenid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366306/normal_5f9f3019765ce.pdfIn PDF document text
    • https://xifobosakup.weebly.com/uploads/1/3/2/8/132815359/zezibexifolewifepim.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481522/normal_5fad5637ac0b7.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/12ef9c5d-bedd-4999-9807-e6d9952f689c/33530357084.pdfIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/64473155666.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a8c6166-7efe-4f5f-a10d-823db1c6c5ca/i_m_a_banana_roblox_id_code.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/abortion_statistics_2020_by_race.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0dc03fd-b59d-4485-8b7d-5299e2a45ed9/recep_ivedik_3_full_izle.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ccafda86-9fa4-47d3-830c-a813f7cf322c/22252174181.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c346f69-f9dd-420a-a144-e7ce8f7f32ff/dofus_ouginak_pvm.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e01dfdd6-6cc7-48cf-aa06-33145b31d030/5_steps_to_a_5_ap_english_language_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b132e4bf-aff4-4cb6-ae96-edba0178f23e/the_physical_geography_of_northern_europe.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010bcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BCC 5296 bytes
SHA-256: e4d08cdcc44f61b5cadecfd66081498a0a8caa3fb3577e2076cd1228adaade4b
font_01_sfnt_off00011db9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DB9 11632 bytes
SHA-256: 8e0ea01c243d63482ab7a9db1010cdea6f5865e63d460470eb8b998e19294683

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