Malicious PDF — malware analysis report

Static analysis result for SHA-256 045525217d676cb4…

MALICIOUS

PDF

68.8 KB Created: 2021-01-09 15:50:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 0842477ee63d45d2a91793635d1d5ad1 SHA-1: d7425f315c8cc14288f09a54a09d0309e8c80961 SHA-256: 045525217d676cb44590a722edbdd5f8437328a9419091cbff4d9bf229bffa4d
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffking.ru/123?utm_term=sierra+reloading+manual+5th+edition+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4403565/normal_5fa1a3d259f93.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495558/normal_5fabf64c85ca6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471479/normal_5faac2449ee91.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455185/normal_5fb338da3b443.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377938/normal_5fdf1bffaa09e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387718/normal_5fc8c098899e2.pdfIn PDF document text
    • https://wabomojufodeze.weebly.com/uploads/1/3/3/9/133999178/02204a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371269/normal_5fad96d3a9820.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/9057ce7e-48ba-48e2-a414-90a863b9be3c/sofabesevalinafeki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/baa03077-10b1-48e4-8574-93d681ddedaa/gewimenujala.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8eb2e95-6b9a-462c-b859-3e9945b9bea9/tiwalivuzopitod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c2cfab8-98c8-4e55-b282-bef0f9fc468f/jutatupanew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/943d535f-e26e-4006-a076-65da0f783193/ben_hulse_elementary_registration.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9423bb9d-e1b5-46b7-a8f6-cdd6b788ab58/28937849516.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_off0000cde5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDE5 5504 bytes
SHA-256: 6e29e83d8e70d6fad44c4a78971f581f601e07ef60d340433054dcfc4710e5c6
font_01_sfnt_off0000e072.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE072 11044 bytes
SHA-256: 68b2e51dbb2114e03aa078c7ca1deca831aeb3b6bfda98fc7bae52273e939eed