Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb4a6fd5e905c6b4…

MALICIOUS

PDF

73.0 KB Created: 2021-03-06 02:22:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 66278a5f7ee379fc89ae89b2c30edb5c SHA-1: b0d4ac73fdcc697faf62667e6d2e8b845d4181e1 SHA-256: bb4a6fd5e905c6b4667a769e2f4dcd0fe29fb6616ca1cb0ebf889e0486ac42e6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://botokaw.ru/award?keyword=how+to+unlock+bolt+action+rdr2 PDF link annotation
    • http://mobufuwiwid.medianewsonline.com/cub_scouts_uniform_cost.pdfIn PDF document text
    • https://cdn.sqhk.co/zadoweferoxe/fhghhgg/71004399150.pdfIn PDF document text
    • http://zuvalasit.mypressonline.com/subliminal_seduction_book_cover.pdfIn PDF document text
    • https://cdn.sqhk.co/kezixowog/TgihauX/cross_stitch_kits_uk_disney.pdfIn PDF document text
    • http://zurujavurobe.scienceontheweb.net/fomawavisenit.pdfIn PDF document text
    • https://xufidevudog.weebly.com/uploads/1/3/4/3/134389214/b1a31dde2a.pdfIn PDF document text
    • http://wumiwuzigimo.mywebcommunity.org/autel_autolink_al319_price.pdfIn PDF document text
    • http://jixazepo.mywebcommunity.org/21668484525.pdfIn PDF document text
    • https://joxisewegiwazev.weebly.com/uploads/1/3/4/6/134669132/8358678.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/gifiz/pimazuzinuzar.pdfIn PDF document text
    • http://zimopup.myartsonline.com/43926195815.pdfIn PDF document text
    • https://9c43cb74-45e3-47de-9527-fda2e8336169.filesusr.com/ugd/af0aa9_ca1feb030c5a4a619cc8c6b1039ffee9.pdf?index=trueIn PDF document text
    • http://gakilasefit.myartsonline.com/fuzuxudemuzufup.pdfIn PDF document text
    • https://4cf2acc4-d143-4013-a78d-f21de0873c4f.filesusr.com/ugd/e4636f_468c6d56104e42d090e796b847cc9594.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/muvojugejoxip/85713442618.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_off0000e12d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE12D 5144 bytes
SHA-256: 71fb6b3353a4b8777d04ca3dc1148fd0f11c7b923b9ab9e93742d3f0188b476e
font_01_sfnt_off0000f2ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2CE 10316 bytes
SHA-256: 6a95e2f335bba7ab95fba6f6ecfccd0d9903ca3d3a6be81888915699ae603907