Malicious PDF — malware analysis report

Static analysis result for SHA-256 972269e0d50fcb39…

MALICIOUS

PDF

68.8 KB Created: 2021-03-22 03:48:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: f857026d010f99fa1ebeb57736a14620 SHA-1: b6709c4ddad29f0bc4629c6c1f2c48c4f8dbd00f SHA-256: 972269e0d50fcb39e3371b9fc9ec8803cbba86604891caa19940dc4c2db79720
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF employs multiple heuristics indicating malicious intent, including SEO redirectors and clickbait links designed to lure users to suspicious URLs. The ML classifier also strongly flagged this PDF as malicious. The document body contains numerous URLs, suggesting a phishing or malware distribution scheme, likely attempting to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • Viral-video clickbait PDF links to suspicious host critical SE_VIRAL_VIDEO_CLICKBAIT_LINK
    Document uses viral/leaked-video lure text and links to a suspicious disposable-looking web host. This is a clickbait/traffic-scam carrier shape rather than a benign PDF link.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 http://salonapp.xyz/can_you_play_new_super_mario_bros_2_on_nintendo_switch8z328.pdf In PDF document text
    • https://cdn.sqhk.co/vavegewumur/hagfsQH/gedipobofukavasewezi.pdfIn PDF document text
    • https://s3.amazonaws.com/muvarelo/59335414954.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/94325596020.pdfIn PDF document text
    • https://zatimitopefavig.weebly.com/uploads/1/3/4/6/134614657/potuxuneg-lavobe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464301/normal_6027be8bd4e14.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444875/normal_5ff5d6ed1883e.pdfIn PDF document text
    • http://hurricane1.space/kabaddi_score_sheet_hdr6078.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413017/normal_60184d8fd89bd.pdfIn PDF document text
    • https://jarosebat.weebly.com/uploads/1/3/4/6/134695718/dizubo-fijukezawire-wivivafulov-fikixidol.pdfIn PDF document text
    • https://cdn.sqhk.co/lafugafeniki/ajeGXp0/99447294691.pdfIn PDF document text
    • https://s3.amazonaws.com/kulinisokakewi/filiramix.pdfIn PDF document text
    • https://s3.amazonaws.com/gupojakami/pobunel.pdfIn PDF document text
    • http://erogan-encolumbia.site/79493274732e362b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481052/normal_5fe4e62e9e46d.pdfIn PDF document text
    • https://s3.amazonaws.com/ladojenefe/badoo_premium_apk_full_free.pdfIn PDF document text
    • https://womominajarizu.weebly.com/uploads/1/3/5/3/135392323/290c36ad17bdf6.pdfIn PDF document text
    • http://cashbackmoney.info/rexugokofeznu8c9.pdfIn PDF document text
    • https://jottigo.ru/wix?keyword=skydaz+1.7+10+furniture+modPDF link annotation
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000cf8e.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000cf8e.bin)
    • https://uploads.strikinglycdn.com/files/e9511cfe-2860-4014-90b2-e9d5a802337d/interior_designer_near_me_jobs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d5b4960-c81d-426c-a2c6-9988bc629631/72600579682.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bbf06ba5-bcd1-46aa-af37-05a4403003d2/38032877848.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 extracted file (font_00_sfnt_off0000cf8e.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF8E 5468 bytes
SHA-256: 5dbd53f1056095423289f8ae7ce34100378ec62572cc22143fa7d9d402c07719
font_01_sfnt_off0000e23f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE23F 10452 bytes
SHA-256: d5cfa83c9603d3cfa615212919d12f75fd0f8e0d0c4220096c995f5ad33e479c