Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b44ae2618d24115…

MALICIOUS

PDF

71.4 KB Created: 2021-03-04 19:27:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: df755c74a847bb4f3872ab6a02c33536 SHA-1: 6482c61c4bbc45189176e48a79fbaedf0c920f09 SHA-256: 5b44ae2618d241153095920b5a61a2c9fc2e0148404e4936129f867a7a5ab7ff
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://jumiwimov.ru/wix?keyword=denmark+hetalia+icon PDF link annotation
    • https://cdn.sqhk.co/begokaxawip/eNfjhhg/xadomanudowemibub.pdfIn PDF document text
    • https://tuxuboninivufos.weebly.com/uploads/1/3/4/4/134478209/0731fef85e8d6c.pdfIn PDF document text
    • https://wesoxiworikezux.weebly.com/uploads/1/3/1/3/131380467/6f0c4a.pdfIn PDF document text
    • http://neditaxuvim.getenjoyment.net/quantitative_reasoning_gre_percentiles.pdfIn PDF document text
    • https://cdn.sqhk.co/jigavozef/Vhj5vgd/faxuzimi.pdfIn PDF document text
    • http://poxumanavofeboz.scienceontheweb.net/xebuxuwitu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379610/normal_6006ebd94416a.pdfIn PDF document text
    • https://limikasideg.weebly.com/uploads/1/3/4/4/134446439/savizobolejurorisuka.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446158/normal_5fdb71d165eeb.pdfIn PDF document text
    • https://zefowumuf.weebly.com/uploads/1/3/5/3/135327275/b908a45f0620.pdfIn PDF document text
    • https://cdn.sqhk.co/zewesifadeka/hfRiihb/kamuwuzizoti.pdfIn PDF document text
    • https://dowisapi.weebly.com/uploads/1/3/4/2/134266119/9778526.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f346bdfe-523f-4974-b7b0-46690d061748/96677538753.pdfIn PDF document text
    • http://jupegojut.atwebpages.com/speed_queen_dryers_commercial.pdfIn PDF document text
    • https://s3.amazonaws.com/dudujopixejikug/rutixesajuzagofipovu.pdfIn PDF document text
    • https://s3.amazonaws.com/bisiku/torurigipukevumu.pdfIn PDF document text
    • http://gafodix.myartsonline.com/98313855144.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/585411c7-8096-4620-ba00-f0693f304cee/how_to_make_brine_solution_for_turkey.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ea80b09-39d8-4d34-9f8a-395bab661935/tezik.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_off0000d727.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD727 4924 bytes
SHA-256: a33c3772c473b9cd0f0370c6330691a53422d205390d584a4f110b53ab3c857e
font_01_sfnt_off0000e7be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7BE 13060 bytes
SHA-256: 41dcdb45d2e56ca831badd10032e36578af1f300e13132da5a5e8fbb820fd2f2