Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea2619d581ae4f07…

MALICIOUS

PDF

75.3 KB Created: 2020-11-13 13:26:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 671e46ceea6e91466a08e28ed55dc598 SHA-1: b554bb80b2fb1de72e0873ef3b8e2002067d07d1 SHA-256: ea2619d581ae4f0776db73fe9e4815a92098035db1785db5a49e0a11b87fe423
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external links, with one prominent URL pointing to 'traffking.ru', suggesting a phishing or scam attempt. The document body, though partially corrupted, contains references to 'wkhtmltopdf' and a title that could be a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffking.ru/strik?utm_term=the+third+man+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4405414/normal_5fa76cf8b5289.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366048/normal_5f8751cfa6969.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/3250b5961ed1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365580/normal_5f8acd8c2f60e.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/40bb5714-00d1-4ba5-be7d-53bd3d30a47a/wotavusopukaxusidalatotu.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/relomulezozimosiguk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3373aa7-d584-4509-bf4a-d995cad714c4/gym_class_heroes_stereo_hearts_lyrics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6df1898-f95f-41fd-968d-f64888f5107a/perfect_health_diet_jaminet.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/720_area_code_location_map.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f12d30b3-d615-4ac8-b277-25caa3fbe307/85994913162.pdfIn PDF document text
    • https://s3.amazonaws.com/xovajukoxin/deralesikozu.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_off0000e8c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8C2 5020 bytes
SHA-256: f3aa7b2a1749327b7aee13825ead48e0a817b1aa0406f07ab1aaa9675b7a4851
font_01_sfnt_off0000f9a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9A8 11728 bytes
SHA-256: 0f1d4749206d0c7ed58c387bed444ef5227359488eb1d386462beffa78b80271

Open this report in the interactive analyzer, or submit your own file for analysis.