Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa3b720dfbb51bee…

MALICIOUS

PDF

67.4 KB Created: 2020-11-10 12:13:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 54fa37a3de73bb550e78a525c4cf7c8b SHA-1: 1301c7e3ad628e1390ce98f7ded2dc5278f5441c SHA-256: fa3b720dfbb51bee7936181345a682a4f0dd1048fd267a2ec86ddd147f27aa90
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://trafffi.ru/strik?keyword=cateye+strada+manual+wireless+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379970/normal_5f8b5c81dfac2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367305/normal_5f87ecc3cf179.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457582/normal_5fa72c4f22d2d.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/51b3c00a-f652-42fc-bc37-8f3ec0959921/digutemenivebuxaxapo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a4b0b96-8dda-4564-9fb2-d6076cb10fea/mazda_b3000_lifted.pdfIn PDF document text
    • https://s3.amazonaws.com/lovetijif/14879647726.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/80059231625.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60997667-e0e8-4859-b92a-b1e2b228fe84/famalabizavimoko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d9f494b-c6a1-404b-9cbc-b8d5d3d37c99/pamutobita.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/old_town_guide_147_seats.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/walixujifamedenukari.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92d53854-0669-4020-b0f3-6d6703163ffa/63284110251.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9991031a-3bd9-4198-a03e-52b0256d569a/56529711979.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54fb9d52-b8bb-407c-8e40-e7c1f10717ba/gimozavali.pdfIn PDF document text
    • https://s3.amazonaws.com/jifesu/topps_living_set_checklist_star_wars.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b58b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB58B 5284 bytes
SHA-256: caed1efee1510e6931571bf5d5c9b3db79d613ec8444b147a7a367036a8e8d69
font_01_sfnt_off0000c788.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC788 10488 bytes
SHA-256: aedaa650dec614532974ceaca8d120a9e677f21cef86bc0a245377f040c024c9
font_02_sfnt_off0000eb90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB90 16160 bytes
SHA-256: 71fec8a3adfe41455811528c654ef740a0d97889ddd19e39e153b04b7507b7f0

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