Malicious PDF — malware analysis report

Static analysis result for SHA-256 e67509fe328649b2…

MALICIOUS

PDF

69.1 KB Created: 2020-11-23 21:21:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: b13c4e82d6a8242db79ab9e8cacba09c SHA-1: 125308728df7b5c3c9c8ab7051c1f7e7a5503f5d SHA-256: e67509fe328649b25c70bb37241164eab7929ba9f7f59907cb90b63b2a038590
164 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 and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://trafffi.ru/123?utm_term=limitless+movie+download+in+tamil+dubbed+isaidub PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4392868/normal_5fa1318ca7000.pdfIn PDF document text
    • https://mimoberojatef.weebly.com/uploads/1/3/4/3/134316463/c5f97bd65.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450138/normal_5fbab8be67bec.pdfIn PDF document text
    • https://jaxazinozusepir.weebly.com/uploads/1/3/4/2/134235406/mudegiwon.pdfIn PDF document text
    • https://lewagezu.weebly.com/uploads/1/3/4/3/134369469/d967c69b6.pdfIn PDF document text
    • https://jomefibid.weebly.com/uploads/1/3/4/5/134596324/dbb7235c.pdfIn PDF document text
    • https://gojamomajaso.weebly.com/uploads/1/3/4/6/134616238/d6bf0aa5b7e450c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zufaxepixiguxax/livulagifezaburod.pdfIn PDF document text
    • https://s3.amazonaws.com/bezorito/vegade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c76c566c-7fbf-41b6-9a99-cf357bcaf88b/mabawimubepo.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/modern_family_cancelled_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/nolarifaforuxop/kawasaki_z750s_2006_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/sefipa/fundamentals_of_investment_management.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2ef0322-13ce-4617-873b-d8e0a28b58f8/whole_foods_mission_statement.pdfIn PDF document text
    • https://s3.amazonaws.com/kovozenamofox/msds_of_benzoic_acid.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/mebeletasinipo.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_off0000d1a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1A1 5108 bytes
SHA-256: ce5370524aa53ef45e4c6cee1f0f9f45b42edb1f76699065005dfc2c0158e00a
font_01_sfnt_off0000e302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE302 10588 bytes
SHA-256: 2585cafc60f784b0cb757c94430e6b93bdd099e454b83036e6131bf653af07f3

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