Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc4d694038812ee9…

MALICIOUS

PDF

74.8 KB Created: 2021-05-05 11:07:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 7d75bac861657cc1952f19681514333f SHA-1: 7242115cf73cdba17910d10b87b09f6e6512ad1e SHA-256: fc4d694038812ee9e6820d2eb0a8d182bbdcf55642eb01b7029f3ca5f9b518fd
186 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 embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://resalured.ru/strik?utm_term=power+book+ii+ghost+episode+6+o2tvseries PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4454808/normal_6008ce01524ca.pdfIn PDF document text
    • https://cdn.sqhk.co/xubipoxeguza/3BY4iiD/ludo_boy_or_girl_name.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491688/normal_5fc6d080b7cf7.pdfIn PDF document text
    • https://cdn.sqhk.co/kakapoxavu/hg7npja/pasojosojamokinaxaxawod.pdfIn PDF document text
    • http://penageli.getenjoyment.net/16763314695.pdfIn PDF document text
    • https://cdn.sqhk.co/makafabakuna/jjBghvs/pacman_ghosts_names.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466679/normal_6028031771c6d.pdfIn PDF document text
    • https://cdn.sqhk.co/tilafukefuwe/egMr1aP/kunugiferuralajisenilupud.pdfIn PDF document text
    • https://cdn.sqhk.co/livulopo/hCjejgx/can_ghost_rider_beat_carnage.pdfIn PDF document text
    • https://cdn.sqhk.co/nupumusu/faicgdW/gusekawomipewexev.pdfIn PDF document text
    • https://cdn.sqhk.co/zitedefew/gcgeljd/13394664518.pdfIn PDF document text
    • https://duragafadave.weebly.com/uploads/1/3/1/4/131438389/zikubedated.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455403/normal_6022c9642b516.pdfIn PDF document text
    • https://vijunefuk.weebly.com/uploads/1/3/4/5/134588972/3058090.pdfIn PDF document text
    • https://cdn.sqhk.co/vokalater/bZiefMT/bead_sort_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387821/normal_60630174eec7d.pdfIn PDF document text
    • http://jokojujut.medianewsonline.com/91472046974.pdfIn PDF document text
    • https://cdn.sqhk.co/wujozuzewed/hgQCggF/sodarurefiroxen.pdfIn PDF document text
    • https://cdn.sqhk.co/kigimole/ujiX6y4/sunasegeresu.pdfIn PDF document text
    • https://cdn.sqhk.co/xipepovivik/cAuBjh5/racing_gear_bag.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ferodibev.onlinewebshop.net/xaxamewusavikogemi.pdfIn PDF document text
    • http://gegetebipa.atwebpages.com/nekivunapip.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_off0000e1e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1E0 5624 bytes
SHA-256: d1c5119782f5d0d17b511ec30e8e73b833b06e9632e4b599792f15f837a0e18f
font_01_sfnt_off0000f519.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF519 11396 bytes
SHA-256: 9cbb661979237016fdc0b00b61876c16ad47d6c09567a334765518acb1eb7a2a

Open this report in the interactive analyzer, or submit your own file for analysis.