Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fae47a3715a347b…

MALICIOUS

PDF

79.8 KB Created: 2021-03-03 21:33:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 569681fb9c2145a6482229efffa72d62 SHA-1: 7d041fa38736643277b8ff4ee6f9e6e75723adbf SHA-256: 5fae47a3715a347b398f8447de36c46fe46e52ff7aa468ccd4c58c5a8afbb17b
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://xajibur.ru/wb?keyword=how%20many%20carbs%20in%20soft%20taco%20from%20taco%20bell PDF link annotation
    • https://cdn.sqhk.co/telapunojawu/cjarFO1/9440903636.pdfIn PDF document text
    • https://xeneniwavufew.weebly.com/uploads/1/3/2/8/132814439/7980217.pdfIn PDF document text
    • https://cdn.sqhk.co/tudosiki/hfjfEhf/fobifapom.pdfIn PDF document text
    • http://mosebuzixat.mywebcommunity.org/mtd_46_inch_mower_deck_parts.pdfIn PDF document text
    • http://tesepaxe.iblogger.org/30120769382.pdfIn PDF document text
    • http://fukiwurezopukof.mywebcommunity.org/axial_scx10_3_rtr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500877/normal_5fd7d56d00e5a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501204/normal_602f48070b35e.pdfIn PDF document text
    • https://bopugokux.weebly.com/uploads/1/3/4/9/134901566/987437.pdfIn PDF document text
    • https://nesibebinirudeb.weebly.com/uploads/1/3/5/3/135311353/6147447.pdfIn PDF document text
    • https://cdn.sqhk.co/taxodisilif/Ihahhjd/vawidexi.pdfIn PDF document text
    • https://jexuleni.weebly.com/uploads/1/3/1/6/131637506/fagek.pdfIn PDF document text
    • http://ninuwekevap.scienceontheweb.net/fadezemilarikoturowe.pdfIn PDF document text
    • https://tubuwixufadone.weebly.com/uploads/1/3/5/3/135315283/4375436.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393637/normal_60142ce77e423.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494165/normal_6035c02774be7.pdfIn PDF document text
    • https://banukusisazej.weebly.com/uploads/1/3/4/8/134893357/731fa94cec8.pdfIn PDF document text
    • http://xitawefavam.medianewsonline.com/jfk_inaugural_address_rhetorical_devices.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000faae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAAE 5324 bytes
SHA-256: 148a8dab5f2dbcd18fc75fe251a32fa77be136071c3742b44b60f9a2bfd608f8
font_01_sfnt_off00010cc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CC4 11104 bytes
SHA-256: efc9a3cf89cfd068944092e7a45caacfa2f21bb8252cb4c2016d79a6c6f629cf