Malicious PDF — malware analysis report

Static analysis result for SHA-256 361ba37b1333ca36…

MALICIOUS

PDF

77.4 KB Created: 2021-02-27 06:39:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3378e6de5d88ac4bb73475ab2a479c4b SHA-1: 94f783f0e9b6dd9f3699eb7687a736be974873f2 SHA-256: 361ba37b1333ca36aa1b5f0e8a1c1cf7df70c74199f961d691fb9d8542a4ee82
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://nipisod.ru/123?utm_term=conair+1500w+garment+steamer+%2528gs28%2529+reviews PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4383451/normal_5fe1354e5617d.pdfIn PDF document text
    • https://movalibixijol.weebly.com/uploads/1/3/2/6/132682530/wozisulitavokid.pdfIn PDF document text
    • http://retamos.mygamesonline.org/how_to_interact_with_nonverbal_autistic_child.pdfIn PDF document text
    • https://ronikirene.weebly.com/uploads/1/3/5/3/135393313/rafusavamawobokixag.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465125/normal_5ff544c975a64.pdfIn PDF document text
    • https://fevenegor.weebly.com/uploads/1/3/1/3/131380973/pebomozarujejerubopu.pdfIn PDF document text
    • http://pazadixokumox.sportsontheweb.net/87482684897.pdfIn PDF document text
    • http://tivaxamikesu.iblogger.org/apsa_80_brochure_in_english.pdfIn PDF document text
    • http://bodopeme.iblogger.org/levotepaxixududefipakoz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367635/normal_601e0b42310b6.pdfIn PDF document text
    • https://cdn.sqhk.co/jupujezaxa/PcjVmjh/meter_reading_application_letter.pdfIn PDF document text
    • http://migarosovimopem.22web.org/forensic_accounting_journal.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420240/normal_6025997cefb68.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371266/normal_5ffec385051b5.pdfIn PDF document text
    • https://tapizijivuvol.weebly.com/uploads/1/3/2/6/132696465/ganobonununevutukeja.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/desekusoxi/27232306175.pdfIn PDF document text
    • http://vivotes.rf.gd/gap_size_guide_womens_uk_jeans.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatofubote/75236839681.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_off0000f1e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1E1 5828 bytes
SHA-256: c6b9b3673de8234378139b432a98432e748bfd345f6da69b4e4107266279a906
font_01_sfnt_off000105cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105CC 10212 bytes
SHA-256: ae54395f5b2b1ebe4e5c29efb0ac60cd49dd589d400c6da49929c4cef8b3ac8f