Malicious PDF — malware analysis report

Static analysis result for SHA-256 22aefc96d479af32…

MALICIOUS

PDF

74.0 KB Created: 2021-02-22 20:52:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 43a23006ec7d863574e0e14d28871537 SHA-1: f1a13e0bc28f31a6130c1bd08567484135a86b6a SHA-256: 22aefc96d479af32e5ea84c5ce608765a80abb2ed374d2576c2770dcb001633a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://druttle.ru/wb?keyword=amish%20general%20store%20clare%20mi PDF link annotation
    • https://cdn.sqhk.co/wogokodu/8ejj3gj/bulaviralanezisabowoke.pdfIn PDF document text
    • https://cdn.sqhk.co/rutisifelom/cZjjnK8/naripitovimurapari.pdfIn PDF document text
    • http://uspeh.icu/dosatukijumidamadovakiqoovl.pdfIn PDF document text
    • http://xokubenafap.66ghz.com/jefizinuvapixune.pdfIn PDF document text
    • http://myfavoritesun.xyz/mewipudejedugodirokoxwp4yd.pdfIn PDF document text
    • https://cdn.sqhk.co/jigavozef/ojbb7cq/minecraft_education_edition_recipes.pdfIn PDF document text
    • https://cdn.sqhk.co/zobelekivix/Fhhigii/crazy_zombie_8._0_macrojuegos.pdfIn PDF document text
    • https://cdn.sqhk.co/napumefu/6djbjcQ/kid_city_gaming_fortnite_royal_rumble.pdfIn PDF document text
    • http://lexidubug.22web.org/82372913511.pdfIn PDF document text
    • https://tiriwubesunadew.weebly.com/uploads/1/3/0/7/130739346/4847702.pdfIn PDF document text
    • https://cdn.sqhk.co/jidevumedure/Ebigjij/jojukowevo.pdfIn PDF document text
    • https://cdn.sqhk.co/puvubuzu/8jbhbgt/bakebovaxepib.pdfIn PDF document text
    • https://tojuxumisadef.weebly.com/uploads/1/3/4/7/134714483/pabusutisokat.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/winumigutam/vpn_client_android_source_code.pdfIn PDF document text
    • https://s3.amazonaws.com/feliso/zisebiniwigowewokixupurer.pdfIn PDF document text
    • https://s3.amazonaws.com/zafirawit/zukep.pdfIn PDF document text
    • http://wenadudik.rf.gd/92072635644.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/fiwuxokujejuve.pdfIn PDF document text
    • https://colonville-country-store.hub.biz/JetztIn 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_off0000e360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE360 5204 bytes
SHA-256: 4df492fbf20a39203ca40072d0f210173fc34b3991806e4f5292dbe74ada1814
font_01_sfnt_off0000f4e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4E4 11656 bytes
SHA-256: 68812c2d8f939d578b4e275c31fcaac08e0d34da91918425313ff4f7b7df78e6

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