Malicious PDF — malware analysis report

Static analysis result for SHA-256 129e38124f882828…

MALICIOUS

PDF

67.7 KB Created: 2020-11-23 12:44:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 468939f4dd2bf306d71bacc4fcfa2ec0 SHA-1: 93557a9f5d7fff2521cc52caeaa3566dbd4b2a73 SHA-256: 129e38124f882828d4f4ed89841d3b7a9a86dc792e3dd793d5f61cc2b7a98174
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 detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristic firings suggest the document contains a large number of external links, characteristic of SEO spam or phishing campaigns. While no scripts were explicitly extracted, the PDF structure itself may contain embedded JavaScript for link manipulation or redirection.

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://traffine.ru/aws?utm_term=birds+animals+sounds+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4476275/normal_5fa4f88e711a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374686/normal_5fa21d898ad06.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446499/normal_5fa2a6de05db0.pdfIn PDF document text
    • https://tiwilofudux.weebly.com/uploads/1/3/1/6/131606348/noninomugibosifi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412778/normal_5fa3615e3201f.pdfIn PDF document text
    • https://nebegixemavo.weebly.com/uploads/1/3/4/3/134359619/daziwufunere.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417208/normal_5fbb4d7697635.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/ec35cda7-95fe-413a-9d96-438032cc933b/69425298880.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/47287819741.pdfIn PDF document text
    • https://s3.amazonaws.com/jijumupade/greaves_cotton_annual_report_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubifirigevi/iit_jam_maths_syllabus_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/ladiwuzetawedi/boxelaniderojomujifojex.pdfIn PDF document text
    • https://s3.amazonaws.com/lulelepese/fukafozowosezanazusovufe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29adad9e-9c64-4f15-ba81-36a9eba5494c/tera_priest_guide.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_off0000cda5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDA5 5100 bytes
SHA-256: 0dce2c9fe5cf31f0a354cfd366bf6eefdacf2e64854da91fb4ef0c27c2b46007
font_01_sfnt_off0000dee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE6 10568 bytes
SHA-256: c9b822ab01b2fcd0f6448dd72c8e65c77cf9e1ebc36a4ed53e839b5c75fc84f1

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