Malicious PDF — malware analysis report

Static analysis result for SHA-256 06d9d589d26f10d7…

MALICIOUS

PDF

73.2 KB Created: 2021-03-31 02:53:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 45c092c027a873779d958a8d8b784275 SHA-1: 5ab5e578b9e2b27a04ca6c075bdfc2219528fed9 SHA-256: 06d9d589d26f10d7437b1aea7c337f436afa25c74c38154f3a14aa71316024e4
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-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://ponafet.ru/wix?keyword=elvenar+mobile+battle+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4408195/normal_6063393c7a582.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482403/normal_60035989c1122.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413575/normal_60084e8351856.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452217/normal_5fea229e22058.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479916/normal_6030d6f033cb7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499979/normal_5fd0910a38ee4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403120/normal_603d07f039d22.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/39d02e2f-142f-4a85-a48a-dcac24167e40/program_management_jobs_in_florida.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5de5f3d2-9af4-4780-bd87-ee9ee6bdba1c/ps4_diablo_3_ros_save_editor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/933b1705-d286-4015-9777-f1dc8f332e6b/7511379660.pdfIn PDF document text
    • https://0029a690-d003-4268-bdc7-e74daa5a0415.filesusr.com/ugd/a4b355_5be91792e35c499e9f45694d23897973.pdf?index=trueIn PDF document text
    • https://1b15a19f-c8c2-4d9d-8c2f-e97aa7ecfe2c.filesusr.com/ugd/eb6c48_49ac01781094417c97582a94d7f98571.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4e797de-34d2-4b3f-9d3d-e58836de2268/gatifizusoje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83472432-f453-4cd0-a812-8731db7167be/xuputagezogukagidi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f65f27c-09e3-498f-ac30-b47d69f30136/planting_and_harvesting_calendar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11647802-918e-450d-aae1-707942de8325/baby_bjorn_bouncer_until_what_age.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cdc8e3fa-2905-40b7-b3f2-a34c3fcb90c3/ac_joint_pain_exercises_athlean_x.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_off0000e0ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0FF 5124 bytes
SHA-256: de4266dec9bee01c380464c72267feb36b2180c0ae1f0046703924d720448607
font_01_sfnt_off0000f25d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF25D 11044 bytes
SHA-256: c6f789bbc51e52476e7d1cb70dc2b6d0a3e1721f0d6598f484b067b188ecd2b2

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