Malicious PDF — malware analysis report

Static analysis result for SHA-256 6199766045e88da1…

MALICIOUS

PDF

76.2 KB Created: 2021-02-15 00:22:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: c30371ef444efea7ad6ec3b14845c6cf SHA-1: aa0c514f58d7d521779c39a82e4d96bcf086ca0f SHA-256: 6199766045e88da1f5c1148eb0f5008e167163770c7e86723212ef62d18f1dc8
196 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous external links, many pointing to SEO-optimized PDF gateways, and one prominent URL that mimics a movie download site. This suggests a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to distributing further malicious content or phishing for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • 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 https://jottigo.ru/wix?keyword=fantastic+mr+fox+full+movie+download+in+tamil PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4390385/normal_60184d4d25a49.pdfIn PDF document text
    • https://dixatuwep.weebly.com/uploads/1/3/5/3/135398053/9617764.pdfIn PDF document text
    • http://zuluwana.iblogger.org/42959851175.pdfIn PDF document text
    • https://vepufekuso.weebly.com/uploads/1/3/0/7/130775624/9638035.pdfIn PDF document text
    • https://fikobovivinuzo.weebly.com/uploads/1/3/0/7/130739062/2926442.pdfIn PDF document text
    • http://mosasekoz.22web.org/sostac_marketing_plan_template.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403806/normal_5fc9d4e13d35f.pdfIn PDF document text
    • https://nalusopiko.weebly.com/uploads/1/3/3/9/133997408/matipes.pdfIn PDF document text
    • https://ruxebawinafa.weebly.com/uploads/1/3/0/7/130776533/momezogovamabuj_wifusovivuwuriz_kimilobilim_vabedatokiz.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/xoferuzu/zefuxeli.pdfIn PDF document text
    • https://s3.amazonaws.com/wusigipufuvowix/notepad_for_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tugumeb/23622109996.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/coming_out_on_top_guide_jed.pdfIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/buy_deep_sided_sheets.pdfIn PDF document text
    • http://rikopob.epizy.com/secure_vpn_for_windows_7.pdfIn PDF document text
    • https://s3.amazonaws.com/sobaketemu/23880658955.pdfIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/tavusopapasifamefi.pdfIn PDF document text
    • http://xipovil.rf.gd/octopus_box_latest_setup_free.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF96 5340 bytes
SHA-256: c1b2e0632f088b9b1e8e34d5db716e99d0735f51522fc084fa8194b76cce7936
font_01_sfnt_off0000f1ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1BA 3128 bytes
SHA-256: 6d6c1314b1ddc68d0ea737f3eb9353b1b3728c862eaf918143cf1ef309c17e68
font_02_sfnt_off0000fe7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE7E 10644 bytes
SHA-256: ee5892d7a0ff6986e265b13aacf10da44a4336add43f69081292d76f8f916abe

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