Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee02910b05d00db4…

MALICIOUS

PDF

70.0 KB Created: 2020-11-13 07:46:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: a3795b2543dc0cbcb17f85711769e744 SHA-1: 1e96e32b6f5bef76f840ed1ab0fe9186c4eb4560 SHA-256: ee02910b05d00db457c0d4ef1dd06df061edb9061441751813cb61cdb54d8a69
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, many of which are dynamically generated and point to external resources, suggesting a link farm or SEO abuse for malicious purposes. One of the primary URLs, 'https://trafffi.ru/strik?utm_term=psycho-cybernetics+updated+and+expanded+by+maxwell+maltz', is flagged as suspicious and likely leads to a phishing or malware distribution site. The ClamAV detection and ML classifier also indicate malicious content, specifically 'Pdf.Phishing.Trojan'.

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://trafffi.ru/strik?utm_term=psycho-cybernetics+updated+and+expanded+by+maxwell+maltz PDF link annotation
    • https://lozatovetifeg.weebly.com/uploads/1/3/3/9/133999134/00db2.pdfIn PDF document text
    • https://solezoxi.weebly.com/uploads/1/3/4/6/134654925/netewetudas.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/ab0fa531-b4b7-4514-bc50-1e52dbaf1632/25605405825.pdfIn PDF document text
    • https://s3.amazonaws.com/gelawiweza/49093730373.pdfIn PDF document text
    • https://s3.amazonaws.com/jexijer/thermodynamics_sonntag_solutions_7th.pdfIn PDF document text
    • https://s3.amazonaws.com/zobuwubedak/washington_nationals_seating_chart_with_rows.pdfIn PDF document text
    • https://s3.amazonaws.com/xenepedu/gosateporok.pdfIn PDF document text
    • https://s3.amazonaws.com/dusubonifu/create_a_new_page_on_fb.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/xeduzij.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/lifes_railway_to_heaven_uke_chords.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25344b4f-8581-4389-8ab3-b8001010587a/mozajifabojelozivur.pdfIn PDF document text
    • https://s3.amazonaws.com/rowubunak/aguilar_tone_hammer_700_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a8f8718-2f5b-47f5-a70a-04e90de07ca7/cafe_luciano_longport.pdfIn PDF document text
    • https://s3.amazonaws.com/vukusa/90303182814.pdfIn PDF document text
    • https://s3.amazonaws.com/vezosoluvezoj/67390132667.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/what_is_organization_in_essay_writing.pdfIn PDF document text
    • https://s3.amazonaws.com/piradi/central_christian_church_joplin_mo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64b9d63f-87ef-4c21-a52c-9be33eadbfe0/22332583712.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_off0000d167.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD167 5796 bytes
SHA-256: 549d4bd7b3c01bc736021532dda67ebb47e1dbf4e5255d4b20e2beba3d4936d7
font_01_sfnt_off0000e519.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE519 10984 bytes
SHA-256: 5b1aea3f471ae875f868eb91cd2625acca8ed47ccdf7807eefd9bf18fddeb2ef

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