Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1302d06e06ec206…

MALICIOUS

PDF

68.2 KB Created: 2020-11-19 06:18:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: a514b3e70c84ba61e743848d3d9c7f03 SHA-1: df5689f7347138f8168aa21c36157ed66aa4c643 SHA-256: e1302d06e06ec2061c39eb3664ef7135fc795da475b570aec86a3121045c73be
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 0.9997

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://trafffi.ru/strik?utm_term=karde%25C5%259F+pay%25C4%25B1+dizi+m%25C3%25BCzi%25C4%259Fi PDF link annotation
    • https://kujinorenut.weebly.com/uploads/1/3/4/3/134319997/popapisoza.pdfIn PDF document text
    • https://nezemugobif.weebly.com/uploads/1/3/4/5/134519414/puxugupagukaxijagev.pdfIn PDF document text
    • https://suzagosezamonu.weebly.com/uploads/1/3/4/4/134446802/vewegufibob.pdfIn PDF document text
    • https://rewemekekebaz.weebly.com/uploads/1/3/1/4/131406535/6578987.pdfIn PDF document text
    • https://lagafuxomip.weebly.com/uploads/1/3/4/3/134347440/3908895.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421039/normal_5f98dc5445d2b.pdfIn PDF document text
    • https://terumadepomajok.weebly.com/uploads/1/3/4/3/134367642/wefapuludojimo.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/ribowexulo/oxford_ib_biology_textbook_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/kujapomib/savuzoz.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/97421259367.pdfIn PDF document text
    • https://s3.amazonaws.com/rasegawi/rule_35_motion_for_reconsideration.pdfIn PDF document text
    • https://s3.amazonaws.com/wifozuxeku/mesutuzijosiva.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/88057583968.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ba23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA23 3036 bytes
SHA-256: aa5372358103b7cc4ef908374b598f052ee1396b52dcf70fa50afca2ab89f292
font_01_sfnt_off0000c735.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC735 5644 bytes
SHA-256: a77a5f951240e622840a0a2c65cdd64b1396a2c0654b8c694d59c22b04a7a736
font_02_sfnt_off0000da40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA40 12608 bytes
SHA-256: 3e76a77630e91fcd76aaf801887cb87fe762120b4ad69b8169501bff78dcb474

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