Malicious PDF — malware analysis report

Static analysis result for SHA-256 d076d34b73c8f929…

MALICIOUS

PDF

66.9 KB Created: 2021-02-18 06:16:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 24a9334989ccf8f7a1221c3295915e9d SHA-1: 29a42bf2da944006a3ba2acf8efe4350fefd2066 SHA-256: d076d34b73c8f929a1d9bfc5a8df764b3986c627399cc04eee0fed0017772bff
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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://crophysi.ru/aws?utm_term=table+of+integrals+calculator PDF link annotation
    • http://vuxokiwi.22web.org/jurigaxadelesute.pdfIn PDF document text
    • http://creditactive.info/descargar_intensamente_hdoiynr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374372/normal_60233c957183e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407576/normal_5fe0a9ebb933d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407062/normal_6006514c20c69.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426277/normal_5fca7d2a10326.pdfIn PDF document text
    • http://milansit.space/midomivavejiwokdu6ug.pdfIn PDF document text
    • http://liko-sneakers.com/218755900123lch7.pdfIn PDF document text
    • http://mugedly.xyz/gigipuxoxemuzedekutitasitrj0dt.pdfIn PDF document text
    • http://smartcreditcheck.info/lotro_scholar_guidepgg44.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417530/normal_5ff3376b86732.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nonabafat/united_technologies_annual_report_2000.pdfIn PDF document text
    • http://baloxes.epizy.com/podugijugixekawaxifef.pdfIn PDF document text
    • https://s3.amazonaws.com/muvojugejoxip/fojuvolewobobi.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/32573420009.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/94647189288.pdfIn PDF document text
    • http://dibibum.epizy.com/larasepepopidedejiwuna.pdfIn PDF document text
    • https://s3.amazonaws.com/vikukinumet/deadpool_trailer_1.pdfIn PDF document text
    • https://s3.amazonaws.com/resabomibogodaw/51015170313.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_off0000c95e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC95E 5140 bytes
SHA-256: 3c1a3961aedf32f2fd38ec340e96ae4fab89cb15d6e1b5de727a7bfc66b96e3c
font_01_sfnt_off0000daeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAEB 10448 bytes
SHA-256: 119fd56b5b42bc60bd16f736be93be0325a8a7ad8642076339b76ad5f7e6f747

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