Malicious PDF — malware analysis report

Static analysis result for SHA-256 59ad9f7791fde944…

MALICIOUS

PDF

71.9 KB Created: 2020-11-30 15:55:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 2f229c8e9846d31bad48e67c6884f3f7 SHA-1: 9f7570b5b64a1ec880843be6bc9ba83fed442bc2 SHA-256: 59ad9f7791fde944659259b55a67b5071f1e1dba9121622614794d823cbd9f23
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://trafftec.ru/123?utm_term=chaka+khan+through+the+fire+live+david+foster PDF link annotation
    • https://sutisivanopazar.weebly.com/uploads/1/3/4/3/134310164/8f55c2504ddad8.pdfIn PDF document text
    • https://tuzafezinaxav.weebly.com/uploads/1/3/4/3/134319976/lugivimobako.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/wulagisi/45745925604.pdfIn PDF document text
    • https://s3.amazonaws.com/xubifupi/biharmasti_in_video_song_2018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/889f3b77-4082-4439-98fe-060bf5f72c77/pokemon_planet_mining_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9beb61e-a9e4-47a7-943b-7e9fb001ba8e/11936944869.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2c2dc1452f90b7ff143cf/t/5fc3f9b9f81c9a2a0c1d1086/1606678969481/61342302374.pdfIn PDF document text
    • https://s3.amazonaws.com/midaguvimabof/mtc_provo_jobs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d06deeb-26e0-4dd7-b900-df19d02e32a3/mobogepudejetedibutavibek.pdfIn PDF document text
    • https://s3.amazonaws.com/jevopemosod/66785480896.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/83902417510.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f69f7d8-b3b3-459f-9f06-31a156ff4d7d/world_of_warriors_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1057689d-630c-49c2-874a-234fac13fac1/wivonoxiron.pdfIn PDF document text
    • https://s3.amazonaws.com/perurulexi/to_be_verbs_list.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd2f727887db0c574fc589/1606233970886/apk_editor_pro_download_for_pc.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_off0000dc27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC27 5196 bytes
SHA-256: 8d32e3d2a38e94350384002626c20564f836dd9a7a6f3b53a93fcb6a2d7d2740
font_01_sfnt_off0000edd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDD6 10860 bytes
SHA-256: b0d89f2b5903a38205e99ac957a8a16578e00db799eefed73f82d6e2b49e1546

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