Malicious PDF — malware analysis report

Static analysis result for SHA-256 9aa7aabe576384f5…

MALICIOUS

PDF

207.3 KB Created: 2021-04-03 22:54:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 98bb125de33d14f4b7a6e5e683923145 SHA-1: df0fad736d333bdb433fa596e7ca21cb2b8e8c0c SHA-256: 9aa7aabe576384f5b62c4a2148b2264b5d73e03e39152d118a348b3457aac4a8
104 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 presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://mezovuduw.ru/123?utm_term=android+studio+3.+2++for+mac PDF link annotation
    • http://wolafifudagiku.22web.org/linear_pulse_code_modulation.pdfIn PDF document text
    • https://nosuzodudoj.weebly.com/uploads/1/3/4/5/134588086/902812.pdfIn PDF document text
    • https://sokefumupuzezu.weebly.com/uploads/1/3/5/9/135991751/nabopojizuwukare.pdfIn PDF document text
    • https://bafibosu.weebly.com/uploads/1/3/0/7/130738803/8501b7528e45d2.pdfIn PDF document text
    • https://gusovegexu.weebly.com/uploads/1/3/1/4/131453321/2030014.pdfIn PDF document text
    • https://xikoroto.weebly.com/uploads/1/3/4/3/134338579/7767657.pdfIn PDF document text
    • http://tezosomebapixim.22web.org/depakugitonixexos.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/kozewuposoridil/assets_and_liabilities_form_child_support.pdfIn PDF document text
    • http://fevasakexelima.epizy.com/2330469049.pdfIn PDF document text
    • http://rabuwojuxuxuna.rf.gd/aprendizajes_clave_cuarto_grado.pdfIn PDF document text
    • http://xediguvodolej.epizy.com/adobe_illustrator_save_multiple_pages.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3479409-3fa1-42d2-b69a-b25492c96dc9/brandon_ingram_height_nba.pdfIn PDF document text
    • http://konojutusaxevik.rf.gd/wevupo.pdfIn PDF document text
    • http://ladugokifuwub.rf.gd/tridiagonal_matrix_algorithm.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a7bb7a2-63eb-41ca-a83b-e63633f7cc09/what_order_to_read_the_black_witch_chronicles.pdfIn PDF document text
    • http://dejarovagozude.epizy.com/aiocd_awacs_report.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/dufopadisurabezozad.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002f85c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F85C 5452 bytes
SHA-256: ce364200c2ae70692942bb8062ef422622ae690afadc4e8e7cb5d983edc34ce7
font_01_sfnt_off00030ad9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30AD9 10760 bytes
SHA-256: 2110e512826d1872235d40cf29883b4c5b46f34a284e5e1570f860aa7f11ee39

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