Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bbc8d393e0c5f1c…

MALICIOUS

PDF

71.7 KB Created: 2021-02-12 09:15:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 920008178e2b9186021a64de66b238bd SHA-1: 0b165d4a2f3fa370ee49fbd7fe88c5df2c3f73ff SHA-256: 3bbc8d393e0c5f1c31df012528aa23bd57849a244f7851826e882f3f3ce23d38
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://jacksth.ru/wix?keyword=tree+of+savior+beginner+guide+2019 PDF link annotation
    • https://pupikitonusu.weebly.com/uploads/1/3/5/3/135301263/depemita.pdfIn PDF document text
    • https://novomuzedideb.weebly.com/uploads/1/3/1/4/131406537/ff5b25d9.pdfIn PDF document text
    • https://pejedakava.weebly.com/uploads/1/3/1/4/131453393/kikaxufominon_zogutu_jenusas_regod.pdfIn PDF document text
    • https://pepizowa.weebly.com/uploads/1/3/2/7/132711999/779bd48.pdfIn PDF document text
    • https://lonofajizol.weebly.com/uploads/1/3/5/3/135389348/9107003.pdfIn PDF document text
    • https://karawabinu.weebly.com/uploads/1/3/1/4/131453718/xewurat_lowalejos.pdfIn PDF document text
    • https://niregesop.weebly.com/uploads/1/3/0/7/130776037/4679082.pdfIn PDF document text
    • https://cdn.sqhk.co/xamitarerivu/hgsgZ8I/voice_of_darth_vader_dies.pdfIn PDF document text
    • https://torimavilok.weebly.com/uploads/1/3/5/9/135984964/4524310.pdfIn PDF document text
    • https://zowadadevifu.weebly.com/uploads/1/3/4/5/134597758/lizovim.pdfIn PDF document text
    • https://bijafifevidajun.weebly.com/uploads/1/3/6/0/136051066/4179458.pdfIn PDF document text
    • https://zikovawezuve.weebly.com/uploads/1/3/1/1/131164456/3090933.pdfIn PDF document text
    • https://tefegepivovopuf.weebly.com/uploads/1/3/5/3/135311357/5556636.pdfIn PDF document text
    • https://kumobavubisu.weebly.com/uploads/1/3/0/7/130775432/4890304.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/gofilafixu/2524364079.pdfIn PDF document text
    • http://jijulek.rf.gd/august_burns_red_constellations_remixed.pdfIn PDF document text
    • http://gupexofuvesok.epizy.com/knewton_assignment_answers.pdfIn PDF document text
    • http://kovoxajinuf.epizy.com/airplane_english_song.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_off0000d9eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9EB 5676 bytes
SHA-256: 72aa11af020262fda3c2757e123247423a1edab3731a566d03db8983d3548737
font_01_sfnt_off0000ed52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED52 10660 bytes
SHA-256: b1fbbbf93f14db910443a61265293f4d1a428d9239d7516636847027f1c19959

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