Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba1dbd56a3f91e6c…

MALICIOUS

PDF

70.2 KB Created: 2021-03-18 19:22:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 0d2fd25ae9567bf033f293a20c63548d SHA-1: 1e202f95db11e5f6ee8e57f4bf2c3b8e3b359e34 SHA-256: ba1dbd56a3f91e6c119daa36b75c0c7c12032a768348638a3d838fd842fcd156
134 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 and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/123?utm_term=bollywood+song+ringtone++mr+jatt PDF link annotation
    • http://dobanojuwelog.22web.org/interior_design_flyer_template.pdfIn PDF document text
    • https://cdn.sqhk.co/gorokipo/pigajjf/furival.pdfIn PDF document text
    • http://winoorama.space/farm_animals_coloringj8epz.pdfIn PDF document text
    • http://istlan.space/chandrayaan_2_in_marathi_information740lq.pdfIn PDF document text
    • http://contact-git.top/84383835905epka9.pdfIn PDF document text
    • http://mufadetajamojo.iblogger.org/lalaxumawatofezasezi.pdfIn PDF document text
    • http://xixubitawub.iblogger.org/finding_slope_from_two_points_worksheet_kuta.pdfIn PDF document text
    • http://beautysale.site/jojipagikagudawijon8uohc.pdfIn PDF document text
    • https://cdn.sqhk.co/zunezafi/uUvflge/67615143168.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://ffcd7f67-9b43-45c2-8e44-b15cca9583b8.filesusr.com/ugd/48bf55_09afd6de4f1d42c4ae07dba2d0c6bbc2.pdf?index=trueIn PDF document text
    • http://divejekojo.epizy.com/jenavomaw.pdfIn PDF document text
    • https://ef5e9b3f-1a8e-4c79-9b60-34b8f8133c96.filesusr.com/ugd/18574e_14fa83aeeaa44e279b36cbcecd49029a.pdf?index=trueIn PDF document text
    • http://gowofar.rf.gd/inkscape_download_linux_debian.pdfIn PDF document text
    • https://da18e6a8-d720-42de-a88c-3f13daad7efb.filesusr.com/ugd/08fe48_78c1ec1dc8f942b39b0c0ae9d7e3a912.pdf?index=trueIn PDF document text
    • http://xafegewoweli.epizy.com/lazobimedop.pdfIn PDF document text
    • https://835a0401-7144-467e-aacc-710587930ffc.filesusr.com/ugd/432cba_14bf167bfe6d457fa719a8d7513ca011.pdf?index=trueIn PDF document text
    • http://zapofekeba.rf.gd/degogasukoga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be6d6b98-ff3d-461a-8812-c4816d417b05/what_is_intellectual_property_law_in_south_africa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/346c2d08-510d-4cb3-90ca-b246342f1c30/relokosurelamododug.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_off0000c977.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC977 5252 bytes
SHA-256: c64c855440bcbcaf63bf59908211a0667456c6cee9f6f37b53b136a8eb9e568f
font_01_sfnt_off0000db4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB4C 10048 bytes
SHA-256: 694205aec371887737d37cb2d16b091b9c0c631b3466eff7d8dd43d502a3bd18
font_02_sfnt_off0000fdb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDB6 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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