Malicious PDF — malware analysis report

Static analysis result for SHA-256 68066488070e8145…

MALICIOUS

PDF

71.0 KB Created: 2021-02-26 16:20:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 8ca0da95203429190ed5f0e2a76c18b8 SHA-1: de085bf39b07de3d2167ea11f2ae0eb389174644 SHA-256: 68066488070e8145e132d2ba4547d6b7b6f4970cd6d23187d172882d8d31215b
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/wix?keyword=bukowski+modest+mouse PDF link annotation
    • http://test123test.xyz/anyways_messenger_for_androidh8a7v.pdfIn PDF document text
    • https://tovexalo.weebly.com/uploads/1/3/5/3/135348509/103904.pdfIn PDF document text
    • http://hr-insider.com/deep_catalytic_cracking_processgyiyt.pdfIn PDF document text
    • https://moxizeza.weebly.com/uploads/1/3/3/9/133999163/409ed1d7c6.pdfIn PDF document text
    • http://vseti.life/20717430828xthyb.pdfIn PDF document text
    • http://getveran.site/how_to_root_kali_linux_2020.2p0byd.pdfIn PDF document text
    • https://pegutezupo.weebly.com/uploads/1/3/2/7/132740329/bc411e090.pdfIn PDF document text
    • http://centerbluebadge.com/monster_trucks_racing_2020v9q1b.pdfIn PDF document text
    • http://bcpzonasegurape2-viabcp.com/dulalenogozazopaw10i2f.pdfIn PDF document text
    • http://foyou.store/zilojuvedapuzovi68xcp.pdfIn PDF document text
    • http://alcozerox.com/9071313411129jne.pdfIn PDF document text
    • http://tryadasert.online/xavitavuwudevukavigepitoji86x.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/rodakarugupoko/audacity_free_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/gajabedafot/83923582534.pdfIn PDF document text
    • https://s3.amazonaws.com/pajukovuxetu/67090708084.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/meferelufukazulidobojojak.pdfIn PDF document text
    • https://s3.amazonaws.com/sesafefanulokam/pebifuvifiwebososejini.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/bikokapika.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_off0000dc07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC07 4836 bytes
SHA-256: 59cd94f9d59670057adda182ac7d485c2ee5e7607a162d0a5de82c4a0025719b
font_01_sfnt_off0000ec86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC86 9980 bytes
SHA-256: c40b95cc6185cb0b19498547c3472e6a60801d2366a881cd1e25050bb2ff9a6c