Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1438fbe90220100…

MALICIOUS

PDF

69.7 KB Created: 2021-02-14 10:08:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 02df323de24c1b78a7dfcf89f4b52932 SHA-1: ba57c24e5d4a379c80ff6e576661656bf0fe9ba1 SHA-256: b1438fbe9022010045849486cbd50a086e3f5f3a546e662f84e1c6d3b4bedebc
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wb?keyword=michelin%20guide%20dc%20restaurants PDF link annotation
    • http://rebitet.22web.org/basic_ms_office_questions.pdfIn PDF document text
    • http://pomirkapa.site/ciclo_demingf5izd.pdfIn PDF document text
    • https://cdn.sqhk.co/wifopuzuxiba/1ichhXA/lakalosojuridelu.pdfIn PDF document text
    • https://cdn.sqhk.co/xoguvamev/gcLhcRF/41252813908.pdfIn PDF document text
    • http://erkutungotu.com/al_final_mueren_los_dosqfiwl.pdfIn PDF document text
    • http://busibear.com/jonakojatussr27j.pdfIn PDF document text
    • https://cdn.sqhk.co/tipefimex/N9Dt0ha/94879702602.pdfIn PDF document text
    • https://cdn.sqhk.co/pisapaxosabo/gQha4go/doot_doot_doot_doot_do_do_meme.pdfIn PDF document text
    • http://terem.space/87749650039k07x1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://weguxaja.rf.gd/fefifafebu.pdfIn PDF document text
    • https://s3.amazonaws.com/febopa/39490745606.pdfIn PDF document text
    • https://s3.amazonaws.com/jebokizez/crossfire_ph_manual_patch_2018.pdfIn PDF document text
    • http://tuludipetowizad.rf.gd/dumerotogirisipes.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzamada/android_auto_vietnam.pdfIn PDF document text
    • http://todugiremo.epizy.com/gosufogapuzagatovepuz.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_off0000d2a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2A9 5208 bytes
SHA-256: c46efbcc0c5dd067ac905bfd6644ccdf40aef808b12b7c420748b92f83a85d5b
font_01_sfnt_off0000e461.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE461 11456 bytes
SHA-256: a1c3a19dc7ed8311a032c927a389637eddbd87a851d57436d7eb0e897cff7a9e