Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e22f7a0782d8a84…

MALICIOUS

PDF

70.7 KB Created: 2020-12-17 06:42:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 16059640f13a201b05f901ab6ee08b1d SHA-1: 158debd2577b4efff7cbda17ad1edec1cf0d9409 SHA-256: 9e22f7a0782d8a84aaac4667d7c1528b340959cfe18b4c9ec63d4b8bfff2cc98
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, likely intended for phishing or malware distribution. 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 a malicious site, potentially leading to further compromise.

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://trafffi.ru/strik?utm_term=rolling+step+stool PDF link annotation
    • https://joponavo.weebly.com/uploads/1/3/4/2/134234964/vopawetelobokalis.pdfIn PDF document text
    • https://saxexowiki.weebly.com/uploads/1/3/0/9/130969873/d07c425542415c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370780/normal_5fc96b7959f87.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408186/normal_5f939cb48fb26.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/jukezeluf/zixefu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c970ec04-dfb7-4769-b96d-3c837edc294a/fazexubotizapopofifik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02b1a149-a538-4732-805d-72d222fded7f/sakodobewidolizirup.pdfIn PDF document text
    • https://s3.amazonaws.com/piwanisaj/xetuxepejajudebegetefefo.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/vanaspati_shastra_in_hindi.pdfIn PDF document text
    • https://s3.amazonaws.com/jofunozuzof/bbc_archers_omnibus_podcast.pdfIn PDF document text
    • https://s3.amazonaws.com/kopisigapub/felaxiwari.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_off0000cd05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD05 4476 bytes
SHA-256: 16cd83079ab4fbde707b99d0b4adcfa4bb0e5d2ab683900b690f7995e48a1f8c
font_01_sfnt_off0000dc57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC57 10604 bytes
SHA-256: 5c3fa352d5b381da0f8e8c20c66c6fd846591fc5ac7e2b47f20fd2a115135301
font_02_sfnt_off00010021.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10021 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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