Malicious PDF — malware analysis report

Static analysis result for SHA-256 17f9dbb8c65446a9…

MALICIOUS

PDF

107.7 KB Created: 2021-02-17 18:53:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: e1a94658f68305caa8bd1d5610a22388 SHA-1: 117cb1a7b99fa94f9a80261dff465dd7d9bde466 SHA-256: 17f9dbb8c65446a9f5cc975ad56f675c749916d77b1230e0a0febcfb5473a2c3
96 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a website that appears to be a lure for a free PDF download, likely a phishing or malware distribution site. The presence of multiple suspicious URLs further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://leonvi.ru/wix?keyword=one+man+out+free+pdf PDF link annotation
    • http://hookup158.fun/surasozadowasetawagiluwuszccux.pdfIn PDF document text
    • https://sitegevom.weebly.com/uploads/1/3/4/6/134664280/809c06c25da.pdfIn PDF document text
    • http://sodaapp.pro/nimokobunoqa73c.pdfIn PDF document text
    • https://vavetupabon.weebly.com/uploads/1/3/3/9/133999816/kubujufipe-pejixe-fajanuwup-nejukewoto.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376612/normal_5ff2e065183d9.pdfIn PDF document text
    • https://zujamabosav.weebly.com/uploads/1/3/4/3/134363941/vemurejetavetunimen.pdfIn PDF document text
    • http://itawegan.space/botatomto6p.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486206/normal_600a60c418501.pdfIn PDF document text
    • http://site-shop.xyz/pokemon_go_plus_braceletjt6z8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379603/normal_5fc87bdf9dc61.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403565/normal_5fe30ba3a0bbd.pdfIn PDF document text
    • https://mefusinumobidal.weebly.com/uploads/1/3/4/6/134679396/zukiwot_zabinililoxama.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380392/normal_5ff8b8ecc0e46.pdfIn PDF document text
    • http://copyrightviolationcenters.com/7981627154978qad.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://nixevafuzija.epizy.com/phir_bewafai_album_songs_free_video.pdfIn PDF document text
    • https://s3.amazonaws.com/gedexim/70990992279.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015d97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15D97 4840 bytes
SHA-256: 019a9c956bdce1a0ada2c414bc00e227b51388698c5ad14f3313b3b2ec45835f
font_01_sfnt_off00016de7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16DE7 11028 bytes
SHA-256: 0bcdfdf3baf90536ae4539dc435630b58005ae2e141c1539690cf54555cceca6
font_02_sfnt_off0001938b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1938B 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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