Malicious PDF — malware analysis report

Static analysis result for SHA-256 697c602c47109177…

MALICIOUS

PDF

74.7 KB Created: 2021-02-23 11:47:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 05c3c6b91d608960d7cdb794ff0c93d2 SHA-1: c266c680913b9369a251effd1e9dc497eaa5675e SHA-256: 697c602c47109177ea1c8e2b48fdf309379cde91bb05896f2c5e969ecde616aa
126 Risk Score

Malware Insights

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

The PDF document was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains numerous external URIs, with a primary suspicious URL pointing to maypoin.ru, suggesting a phishing or malware distribution lure. The document body, though heavily obfuscated, contains text that appears to be search query related, reinforcing the phishing pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://maypoin.ru/wix?keyword=karl+anthony+simon+pa+memorial+hermann PDF link annotation
    • https://netigiru.weebly.com/uploads/1/3/4/5/134501210/e4c3a25ad8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451350/normal_5fe2c054a9a0e.pdfIn PDF document text
    • http://cashbackk.site/transformao_de_bytes_para_megabytesyna2g.pdfIn PDF document text
    • https://bemezonef.weebly.com/uploads/1/3/5/3/135389856/sogexukevili.pdfIn PDF document text
    • https://cdn.sqhk.co/wepurodapike/QiaGh36/gefidifuvu.pdfIn PDF document text
    • http://lnstagramservicecopyrights.com/mekuxnujed.pdfIn PDF document text
    • http://plafond.xyz/xidogilwyw52.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489245/normal_5fda3a02e9063.pdfIn PDF document text
    • https://xedasijaw.weebly.com/uploads/1/3/1/4/131453620/todomomupulul_vatani_kanudekuk_bofeduzefenu.pdfIn PDF document text
    • https://kigatuxusim.weebly.com/uploads/1/3/5/3/135305206/bifaridikomad-sarimoxevorazat-femirusosivozis-lelokukatopezol.pdfIn PDF document text
    • https://cdn.sqhk.co/togodawexu/7hgfibt/best_popular_ringtones_2019_download_zedge.pdfIn PDF document text
    • https://cdn.sqhk.co/moviferu/jigifqh/uc_browser_mini_apk_download_latest_version.pdfIn PDF document text
    • https://zulunapakaf.weebly.com/uploads/1/3/1/0/131070820/0349a1f288.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470703/normal_602c1dfa4b823.pdfIn PDF document text
    • https://cdn.sqhk.co/raxoxawupej/Ywicwhc/new_upcoming_animated_movies_2021.pdfIn PDF document text
    • http://healthyforczechrepublic.site/38542135253x1ksp.pdfIn PDF document text
    • https://xotituwidekave.weebly.com/uploads/1/3/4/5/134585458/6170604.pdfIn PDF document text
    • https://muxixeronazuxup.weebly.com/uploads/1/3/4/5/134508557/9495827.pdfIn PDF document text
    • https://mutikotamibe.weebly.com/uploads/1/3/0/8/130874320/xusidopidebodipagono.pdfIn PDF document text
    • https://juwufugoxeza.weebly.com/uploads/1/3/4/5/134528381/944f83b4.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/sisaxu/bukibuxuwopokikujegeja.pdfIn PDF document text
    • https://s3.amazonaws.com/zafirawit/climatic_regions_of_the_world.pdfIn PDF document text
    • https://s3.amazonaws.com/gezetega/kanam.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_off0000e76a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE76A 5132 bytes
SHA-256: 2f42a27d14aa7dd0d676ab24691b338836bf2782dd3f5b4527f6acd123acae54
font_01_sfnt_off0000f8bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8BB 10900 bytes
SHA-256: 5b2f912ade843f7ba76f9335a4d4a6e8a89eb73adc2a0f34a2398858d30cdf22

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