Malicious PDF — malware analysis report

Static analysis result for SHA-256 69858ab39e09a712…

MALICIOUS

PDF

68.7 KB Created: 2020-12-02 18:34:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 6d4dee99204d3e1984f877c66d8f47ac SHA-1: 3b8fbb3959a97029999ddb7b5229f27b830e6b4a SHA-256: 69858ab39e09a712ed6f17051236e88fbc961ee2936cb5086202c0d087d36b87
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/aws?utm_term=film+ajari+aku+islam+lk21 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4390995/normal_5fa9dda2caf68.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373797/normal_5fa419b15fdb8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366351/normal_5fc02266c01c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387929/normal_5fad277faf48c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480584/normal_5fafab645287d.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/ligole/letter_of_authority_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd7e7892-e31d-4f82-ae0c-7f61ec053995/the_vintage_guide_to_classical_music.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/45038556615.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e96b0c26-bc1c-4b80-9535-4a12810093a6/1620802956.pdfIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/86996832498.pdfIn PDF document text
    • https://s3.amazonaws.com/bepukuba/cleanblend_blender_reviews.pdfIn PDF document text
    • https://s3.amazonaws.com/zizene/printable_addition_worksheets_for_second_grade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a460e224-fe0c-493b-aecc-d70b0e5e85a2/digesexisezivebasawe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/177cce7a-8e35-46a6-a949-a4f842e63730/ffxiv_5.1_crafting_rotation_macro.pdfIn PDF document text
    • https://s3.amazonaws.com/potofaw/carl_zeiss_meditec_ag_annual_report.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 1

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_off0000c53f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC53F 4580 bytes
SHA-256: cc232a67569e0ba5765d1744e321ad2a2ed573e7956689838b0bf55350c1221b
font_01_sfnt_off0000d4b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4B5 10424 bytes
SHA-256: 8889278a354ab442b5e0627b4d7c1003751909b06aaba506142bb474493523e3
font_02_sfnt_off0000f830.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF830 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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