Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad738a681333c0a2…

MALICIOUS

PDF

82.2 KB Created: 2021-02-19 02:20:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7dbdb8ae1af7d8c6f1c71f4d81e974f2 SHA-1: 9e5714403c4401526e1adfe64cf3303cceed4709 SHA-256: ad738a681333c0a2925f36cca705071bffa419bbfa9741c171fa4ba751c17c2f
186 Risk Score

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.
  • 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://bologen.ru/wix?keyword=paramore+riot+songs PDF link annotation
    • https://cdn.sqhk.co/sijoputolu/7ihjjii/thumper_girlfriend_plush.pdfIn PDF document text
    • http://prostosite.site/80x_game_booster_pro_app0gscd.pdfIn PDF document text
    • https://tekuxarutupun.weebly.com/uploads/1/3/0/7/130775258/c7e8a34e8a62.pdfIn PDF document text
    • https://xojisige.weebly.com/uploads/1/3/1/6/131637148/ef0251fe3f4a8.pdfIn PDF document text
    • https://xavaruren.weebly.com/uploads/1/3/1/3/131383751/tuzoriz.pdfIn PDF document text
    • https://cdn.sqhk.co/fedovusig/hThe2Q1/zedge_app_download_for_android.pdfIn PDF document text
    • http://registrat.space/70531311250ws53g.pdfIn PDF document text
    • http://copyright-notice-ig.com/19059504293orhv8.pdfIn PDF document text
    • http://pc-remont.website/2371525527430z6o.pdfIn PDF document text
    • https://cdn.sqhk.co/duloputemab/N7iahFL/99973283119.pdfIn PDF document text
    • https://rekazisiw.weebly.com/uploads/1/3/0/8/130874265/kuzopanotesuzadota.pdfIn PDF document text
    • http://dontbeshy.xyz/luwogepazobasa0kd4j.pdfIn PDF document text
    • https://cdn.sqhk.co/xenojepezere/fBgcQQd/80662894078.pdfIn PDF document text
    • https://cdn.sqhk.co/vurikede/hrzdfjq/50739574213.pdfIn PDF document text
    • https://cdn.sqhk.co/jotapepikota/jqIicjg/jividesafikezi.pdfIn PDF document text
    • http://hisgohar.site/pudulesemukipudoz9ice.pdfIn PDF document text
    • http://milesnires.xyz/366269927612g9tw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://voginafukut.rf.gd/cet-_cell_dhe_b._ed._hall_ticket.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_off0000f757.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF757 4972 bytes
SHA-256: 3e464d25655a7474309e53abfa402eea06ce198d377a449b1d30ad5d59f0d29b
font_01_sfnt_off00010827.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10827 16728 bytes
SHA-256: b9e466690c3f3bdbe5a8c2e7b6e3ed85e644fb452bc9dd234d2deaeb9351b9f9