Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ab7f999a966e9ad…

MALICIOUS

PDF

105.0 KB Created: 2021-01-07 23:19:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 86ba9bc9754b3d9b860277936579647c SHA-1: b3fa70e1f9a031c2684d46d9ca12d0ec160b44fa SHA-256: 5ab7f999a966e9adb9dfdef2a48e3ab6593040314ca9f801b9e801e669aadcde
96 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 external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafficel.ru/123?utm_term=wow+1.12.1+vanilla+guide+addon PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4417808/normal_5fef8fec693d1.pdfIn PDF document text
    • https://cdn.sqhk.co/zewezerezi/1Jw2Edd/zevusofijijaxosul.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386848/normal_5f8e2bb6b2987.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366359/normal_5f88026893370.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496812/normal_5ff03135d36b7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411916/normal_5fd9b330620e1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413473/normal_5feb58ce9ab12.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/7d7aad3a-a63e-46bb-b94c-d1789fa75883/86664192289.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8621ff6-5971-443e-aea9-85dd51859778/when_sinners_say_i_do.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6aa23369-43f2-41c5-af5f-406ea9637ce0/facture_apporteur_daffaire.pdfIn PDF document text
    • https://s3.amazonaws.com/baxadelefofibuz/gitapekemep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6ad110c-7134-43b9-86b9-c5ea22b4f71e/xorilumalexe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa4354f1-5adf-49f0-b0d7-5b2c3728e765/marchenko_kill_switch.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10f8bed2-8db6-46ed-bccb-d67830f0df2b/graphing_sin_and_cos_functions_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/rekawexuretowo/83266339195.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 4

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_off00015e42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15E42 5100 bytes
SHA-256: 87a05dc709958a7190ead820f0ce70e43b6538344cac64e1871edf54aecb0a38
font_01_sfnt_off00016fd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16FD8 11432 bytes
SHA-256: 20d1ed32b6bed0b6d592d3afa5afc86cb6950f6f03e18b50ac5d4827b94019b1

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