Malicious PDF — malware analysis report

Static analysis result for SHA-256 265e1cd666adc763…

MALICIOUS

PDF

72.0 KB Created: 2021-02-21 22:52:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: e01f6f1b8f739fb6b8d3a5db5bf1e49c SHA-1: 947045e4eed9d26c13df7147a246da25b0da283b SHA-256: 265e1cd666adc763ae3a572da3cfb441aa204b4327a6cd00727b5e92d610b454
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 0.9997

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://bologen.ru/wix?keyword=samsung+vrt+he+washer+troubleshooting PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366014/normal_6028ebbee4066.pdfIn PDF document text
    • https://cdn.sqhk.co/wesaduleb/Ngdn6hh/bombsquad_baseball_jacksonville_florida.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416140/normal_60099ead5f04b.pdfIn PDF document text
    • https://cdn.sqhk.co/vinogusi/Bhajfii/pitbull_dog_attack_human.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387219/normal_5ff78fb35c09f.pdfIn PDF document text
    • https://cdn.sqhk.co/jexozumumanu/i9haij4/63122112637.pdfIn PDF document text
    • https://cdn.sqhk.co/bewagolene/jhzRif4/26279409525.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365582/normal_60104cd6d2e8d.pdfIn PDF document text
    • https://cdn.sqhk.co/nadipozow/hbificR/17407337042.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jaxifepuxebadin.epizy.com/serge_lang_linear_algebra_solutions_manual_free_download.pdfIn PDF document text
    • http://xeroxuzowi.epizy.com/explicacin_de_las_estrofas_del_himno_nacional_de_honduras_resumidas.pdfIn PDF document text
    • http://milovuzojed.epizy.com/kezara.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_off0000de31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE31 5496 bytes
SHA-256: e06e4c451289c6d6fdf40818b8669ce4448fcfc749120c51be362011836e5d71
font_01_sfnt_off0000f0cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0CB 10188 bytes
SHA-256: 005a5d638fb5f9636ded249ae9e05d402134348eff44fc643a328698ffd87f88