Malicious PDF — malware analysis report

Static analysis result for SHA-256 e49ff3c816e35426…

MALICIOUS

PDF

71.3 KB Created: 2021-02-19 11:27:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 4367d740505a237aa7420fb4bced0d0a SHA-1: 11fe2e396bf9f7a45dfcf3efa4fc1560e1bf98be SHA-256: e49ff3c816e35426952636964757ca48a1d5aacb22ec0c84ae7d5e3b718940a2
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to trick users into visiting malicious sites, potentially for credential harvesting or further payload delivery.

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://leonvi.ru/123?utm_term=walmart+shark+vacuum+promo+code PDF link annotation
    • http://nutapobo.iblogger.org/77100056913.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502833/normal_6024a621e5db2.pdfIn PDF document text
    • http://gulebamabixaku.22web.org/beautiful_in_white_shane_filan_free.pdfIn PDF document text
    • http://bullbananavannaone.xyz/ignou_clinical_nutrition_bookvoe3d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415300/normal_60256c4d38651.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384464/normal_5fdfaba4f21a5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380086/normal_5fcd253d78fe7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379377/normal_601ed87a84288.pdfIn PDF document text
    • https://cdn.sqhk.co/fimegasaz/WYgjcgu/woxabotejivewitodupewevez.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fopadunopim.epizy.com/gajojejasalekovalat.pdfIn PDF document text
    • http://zexizel.epizy.com/83929881218.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/swamp_thing_comic.pdfIn PDF document text
    • https://s3.amazonaws.com/bisapovepizaj/cdc_isolation_guidelines_for_varicella.pdfIn PDF document text
    • http://magufabag.rf.gd/retozagudikorowepexib.pdfIn PDF document text
    • https://s3.amazonaws.com/mejifavo/bally_belt_size_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jijari/85568273687.pdfIn PDF document text
    • https://s3.amazonaws.com/gimufesajo/formal_agreement_between_countries.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000da1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA1F 5448 bytes
SHA-256: 50029952a7555717240932c590fb96a8467b854b1a0d4be90643c2a4bfcafa83
font_01_sfnt_off0000ec8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC8C 10452 bytes
SHA-256: dbe4e58fd9f4ae68bcba176c661c866d9f7acef1351a40695391fb52eb2b9093

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