Malicious PDF — malware analysis report

Static analysis result for SHA-256 6960eee976dc25af…

MALICIOUS

PDF

70.4 KB Created: 2020-11-11 07:42:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 034ce87d0288e9e382b6138cabfa3cc5 SHA-1: 3852cdcf89543ff17a196a91a36115ee865409c2 SHA-256: 6960eee976dc25af7dd386dc61e5e159d139a4f49b731293fdc63fe7cf7ee69b
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ggtraff.ru/strik?keyword=download+moviebox+apk+for+pc In PDF document text
    • https://wajodaxomunav.weebly.com/uploads/1/3/4/6/134625674/270741f24.pdfIn PDF document text
    • https://vaxatimiroxak.weebly.com/uploads/1/3/4/6/134617636/9611100.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406223/normal_5f990da9bd704.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422163/normal_5fa72389431a6.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/mivokozibu/adding_subtracting_fractions_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a785b742-937c-40c7-bf54-65819055c083/peer_evaluation_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/wajibile/4352003382.pdfIn PDF document text
    • https://s3.amazonaws.com/tifuwuw/mountain_dew_logopedia.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/61601249689.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/73001563991.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_off0000cc6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC6F 5544 bytes
SHA-256: d7013e8d2714170d2c22d7a2119519146a252c1a4d561acb1dca33b3f2ed313f
font_01_sfnt_off0000df4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF4E 1800 bytes
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0
font_02_sfnt_off0000e7dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7DC 10760 bytes
SHA-256: 24e2b7afeff98d4508a7e4399c9c80dc73898e59150ef440a6c1504df20e6ee7