Malicious PDF — malware analysis report

Static analysis result for SHA-256 baa215b86a7c0842…

MALICIOUS

PDF

68.6 KB Created: 2020-12-25 00:35:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 23d9536f39155addec390566258b2e16 SHA-1: 80a82de82d597b2d2859ee8f1d0246db941a10db SHA-256: baa215b86a7c08426de5a11333bd3677c00bde39c7ceedd23c12cd8b1d8adf33
96 Risk Score

Malware Insights

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

The file is a PDF document flagged as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to 'https://traffnew.ru/123?utm_term=teavana+teapot+glass', which is a strong indicator of a phishing or malware distribution attempt. No scripts were extracted, but the presence of the malicious URL and the document's classification strongly suggest a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffnew.ru/123?utm_term=teavana+teapot+glass PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4375199/normal_5f8ddffb66452.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403259/normal_5fcbb2bf4fd25.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410206/normal_5fc32c7b0b2aa.pdfIn PDF document text
    • https://pefekebemapufug.weebly.com/uploads/1/3/4/3/134370705/mofefosen.pdfIn PDF document text
    • https://molisepav.weebly.com/uploads/1/3/5/3/135347716/9a2088ed.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/dabatisew/gokujaxojopij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74ff2644-2e22-4f10-93ec-5483f4fac06a/27297439199.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85d2fd75-a00a-429e-b5cd-5df0948617c9/towubasodifozupezo.pdfIn PDF document text
    • https://s3.amazonaws.com/vipuxafol/middle_school_choir_lesson_plan_template.pdfIn PDF document text
    • https://s3.amazonaws.com/golepe/plastic_carport_roof_sheets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ca9cb46-5559-4d98-92dc-9b6fa90d175a/derekegapepufizobabefeba.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_off0000c439.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC439 4640 bytes
SHA-256: 95bc4751d08bd044199ee05a16733f40bcd28f0d29943a1c9eadce666c60275c
font_01_sfnt_off0000d415.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD415 10532 bytes
SHA-256: adf4b8997cc1633c74bc9e7bde28482d1500dca38bdb30559cf4ce2827ea1e5f
font_02_sfnt_off0000f7c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7C4 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378