Malicious PDF — malware analysis report

Static analysis result for SHA-256 97f596d34700edb2…

MALICIOUS

PDF

150.6 KB Created: 2020-12-30 13:33:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9a2db4d5c1378a5001cd275ca38247ee SHA-1: 5e58f65aefc6731c19e933171d1ef8845b80dec4 SHA-256: 97f596d34700edb2b48950dff400c1bc4c1dcca1622b172907ede11cd837b4d1
154 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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/strik?utm_term=bloomberg+politics+newsletter In PDF document text
    • https://cdn.sqhk.co/lapefuxolu/cQjgijq/13978819721.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458413/normal_5fd9a91a64281.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478131/normal_5fa6fcf334382.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418365/normal_5fd39d107d732.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467325/normal_5faa37baa2d71.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404965/normal_5fbf1d3926c87.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450734/normal_5fe2fb73a8285.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367944/normal_5f8866e88f8bf.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://s3.amazonaws.com/tarajix/59931155915.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bc691cf-3a2c-4957-bd83-707308ad5496/old_town_dirigo_106_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/lakusopututabofofinot.pdfIn PDF document text
    • https://s3.amazonaws.com/bejeseja/vekufonoxog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e625fe3b-391a-44a2-be14-0a641127922a/12554944088.pdfIn PDF document text
    • https://s3.amazonaws.com/sezewu/zekonogolagadexako.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000204d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x204D7 5112 bytes
SHA-256: ca78d78fdd45a6c3d244efdde7fe471508f159ec616f3bbc10e9a339b08043b3
font_01_sfnt_off00021636.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21636 11940 bytes
SHA-256: 24f61e4bd851fd97dbcf086b9c71c47a17680b8f82bb2510f7faab531cdcccf2
font_02_sfnt_off00023eb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23EB8 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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