Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c0a43cdc431c659…

MALICIOUS

PDF

98.3 KB Created: 2020-12-15 22:14:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 20bcf90db91c7b1274e1a387151707b0 SHA-1: 49a2186408f7e005a11d4dba0336c9706ed2c0fd SHA-256: 5c0a43cdc431c659a639503593f482f2918ce91bf4f69358499df3915e0390a9
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 URL that directs users to a suspicious domain, likely for credential harvesting or malware distribution. The document body, though heavily obfuscated, suggests a lure related to a spiritual warfare manual.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://trafftec.ru/strik?utm_term=manual+de+intercesion+y+guerra+espiritual+guillermo+maldonado PDF link annotation
    • https://gerexogevi.weebly.com/uploads/1/3/4/4/134463414/sevisinuta_vevomedam.pdfIn PDF document text
    • https://fagisidide.weebly.com/uploads/1/3/2/6/132682833/2576215.pdfIn PDF document text
    • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/lesakuzivosezuz.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/8c9cea54-7050-45fd-afa6-83664594f8bb/monster_novels_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6edc6e18-f1cb-4a7c-ab4f-882819dfc07e/rugaxe.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f27ea13a450babf44921/t/5fc1749b6457125654730e90/1606513820142/psychic_distance_writing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55e7dfc9-d50c-4155-bce2-01db8476c564/riniligo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc562fe40f1034a5cc6d69f/t/5fcaf4598dcc5603beeb4609/1607136348799/download_mod_thunder_assault_raiden_striker.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1ea5d1e-ab8c-46d6-a28b-fe387154fbff/fagojuxobawuzokivibejaxi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe2852173fb5383b6baca9/1606297683065/sulfonation_of_benzene_wikipedia.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://sinhala.sourceforge.net/In PDF document text
    • http://sinhala.cvs.sourceforge.net/viewvc/*checkout*/sinhala/sinhala/fonts/CREDITSIn PDF document text
    • http://www.gnu.org/licenses/gpl-2.0.htmlIn 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_off00012375.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12375 5500 bytes
SHA-256: b9a27e948557e66d7f7a447a35a5babadb38cad7842cc6d8a590a2d022bd660f
font_01_sfnt_off000135ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135EC 9072 bytes
SHA-256: e5cddd21c89956c833bace2599999a500e050748eaa6b37a60781a6175538ccf
font_02_sfnt_off0001518e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1518E 12368 bytes
SHA-256: a1f76a2a9c324aac66022e03134a0f06f588b6e5e39eb3522174c80785ec9a86

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