Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd0f2c0a757e6bc6…

MALICIOUS

PDF

33.7 KB Created: 2020-11-03 04:14:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: abb07055a4f0de77a37dce7448fe79e2 SHA-1: dd6e82a4884d2c2868fdf199638db23062aaa50d SHA-256: fd0f2c0a757e6bc66f377d988bcd3ff506f3707029cf394ae902949cf6bddea7
94 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/wb?keyword=holmes%20fan%20manual In PDF document text
    • https://relulime.weebly.com/uploads/1/3/4/3/134384492/pekisinisumutum.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/36ce75ac.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4361/8965/files/55597035819.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/5790/4292/files/easy_jeopardy_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/noida_metro_syllabus.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/mgt_498_final_exam_answers_free.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/71960237378.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/67656535021.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/72432186165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4173/4307/files/kenmore_elite_washer_manual_drain.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ceaee4c8-babf-4d0f-ab2b-94fe91028324/6743539929.pdfIn PDF document text
    • https://s3.amazonaws.com/vufupu/pidavemiparozaraketadow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dbeb24b0-8f33-4da5-985f-b698ac3ae8d0/wajukakozosa.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_off000048a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48A6 4776 bytes
SHA-256: 02a126aa5f39e097209458b4ef4b764bb1119c325d0a1cf1db50133e786fe62d
font_01_sfnt_off000058cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58CC 9896 bytes
SHA-256: fa1bc77a2f55ddf9abbfab14c08f8f5ab2f667af519e929a2377c4570e01b9f6