Malicious PDF — malware analysis report

Static analysis result for SHA-256 d649c050ae322aba…

MALICIOUS

PDF

74.8 KB Created: 2020-11-11 23:52:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 997e056f9b5936449ccb0faa623b786b SHA-1: 90ebd046194937831cba5ca75d08a25a4c8527a6 SHA-256: d649c050ae322abacb86dbfc8f0d71ee965b92caea436d1d5f9439ec8e23526a
104 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 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 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
  • 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://trafffe.ru/123?utm_term=burrito+bison+hack+apk+2019 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366041/normal_5fa1b2cec9ae9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372673/normal_5f8e728850ce9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387826/normal_5f90d1e6ce7cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379726/normal_5f95b754c13e8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370785/normal_5fa9043d2dc5b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368962/normal_5fabdcd9ada37.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387410/normal_5fa3356ede4d5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366358/normal_5f89195e631cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402956/normal_5fa83df23a794.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/9116cb46-fe8c-4b9e-92f6-59eeafcf3285/bobs_machine_shop_wedges.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50582aca-3aa6-4cc6-bbfd-eac3f37ecd98/big_lots_employee_empower_login.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a86b1c8-04d6-418a-9f98-a92a4d73a0dc/ximabaditolapololi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/125c7f1f-f564-4392-ba33-e8649654a2ce/99543839261.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 7

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_off0000d046.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD046 5724 bytes
SHA-256: 933369ca80aecde4fbc57afd6c2afafab292129996aaf56f48b3cd6b4568a414
font_01_sfnt_off0000e3b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3B1 10984 bytes
SHA-256: 76b803bbd703de45051fb2f4127e84934c772452e1a5b616da8fa7ae078446db
font_02_sfnt_off0001096b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1096B 16120 bytes
SHA-256: 467334b253c03183b8f59c8c7859f446a4d85e3bd71546e4bc7697603d08a064

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