Malicious PDF — malware analysis report

Static analysis result for SHA-256 f42bcee651ef29ad…

MALICIOUS

PDF

66.6 KB Created: 2020-12-19 11:32:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: e93c87f1a9facc538750451aa44999b7 SHA-1: 949bf4370c87dbcc65c4333e2cb776736a8aaa63 SHA-256: f42bcee651ef29adacefffdd011535f54f664449b38f1cc73686d6b31fcf88ec
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URL that directs users to a site disguised as a weather report, likely a phishing lure. ClamAV detection and ML classification strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to redirect users to malicious content, potentially leading to further exploitation.

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://trafffe.ru/aws?utm_term=gagan+weather+report PDF link annotation
    • https://jidamusalaf.weebly.com/uploads/1/3/4/3/134378250/kodizowuxixup.pdfIn PDF document text
    • https://dajidavibaral.weebly.com/uploads/1/3/4/6/134606929/tajesuwamefa.pdfIn PDF document text
    • https://zepudelewow.weebly.com/uploads/1/3/2/6/132682561/mazupepibepo.pdfIn PDF document text
    • https://tenagudewujuga.weebly.com/uploads/1/3/1/1/131164273/zufiki-rixisuro.pdfIn PDF document text
    • https://dexekuweda.weebly.com/uploads/1/3/4/7/134705305/c5293e42d9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://static1.squarespace.com/static/5fc15c11ea4a794d564840ae/t/5fca86368e8fba586e62d3b2/1607108151723/civil_war_trilogy_gettysburg_gods_and_generals.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4f30127a199023acf5c67/t/5fcef6dc7379aa35976c8d87/1607399133131/gavogekul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb94316a-e0a4-41c6-b963-d7d3c66a3056/saredo_tsumibito_wa_ryuu_to_odoru_dances_with_the_dragons.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e46f24b06a7eb3ff1788/t/5fc13b445147b14804607195/1606499143360/datopapogemadojame.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce0e7fe5cb4c30585dce04/t/5fce918bbcd92b20b04411ed/1607373196284/switchblade_necklace_gold_mgg.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4e0fba5bc066edfbf0e5c/t/5fc54ef7145a8629dc60e954/1606766329816/burbujas_de_amor_juan_luis_guerra_lyrics.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f83717e7202640ea8e04/t/5fd009aa6e9f31088180b105/1607469483813/pyramid_solitaire_saga_level_643.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bdc87f95-0dbe-400c-9789-313046d82d0a/jukabenowejola.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_off0000bbec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBEC 4996 bytes
SHA-256: b01cc724cc1a94f7e310c086a248a4186be8af965ad43103b42cd04e2c358c54
font_01_sfnt_off0000ccfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCFB 3100 bytes
SHA-256: 3da43181f34be97351e6685196a15eaae7d07ed3789a472dcf7bb641823cdb18
font_02_sfnt_off0000d9e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9E7 10452 bytes
SHA-256: 2fd42880ee6f499d2018b9658391da69250e45b58c379dc71cb308d8ed91b2b6

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