Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7f2ba42cb52172e…

MALICIOUS

PDF

69.7 KB Created: 2021-02-07 23:40:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7390efd28189ad1155a395262ece9be9 SHA-1: afb1aab92f99fba9ddf61138d0e083bc2a206c06 SHA-256: d7f2ba42cb52172e7119e385ec95620d0ec6a0606aa673762a5f6af508a15eea
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=us%20customs%20unaccompanied%20baggage%20form PDF link annotation
    • https://xogoluxoso.weebly.com/uploads/1/3/4/4/134444279/987603.pdfIn PDF document text
    • http://nujibexadubixup.iblogger.org/fabamujawajipoworivazutup.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418191/normal_600430712ac43.pdfIn PDF document text
    • http://mujorofujezigi.iblogger.org/favujabexixofuzopex.pdfIn PDF document text
    • https://rurajisikite.weebly.com/uploads/1/3/0/8/130813509/01b5cdae5de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375885/normal_6014833e1a862.pdfIn PDF document text
    • https://tadesurirow.weebly.com/uploads/1/3/2/7/132711952/zalap.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471464/normal_5fed77c89751c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371524/normal_5ff660753654b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452173/normal_601d9e2414275.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/zifilobesumafi/anaphylactic_shock_guidelines_2017.pdfIn PDF document text
    • http://xogejutir.rf.gd/katololofinudutofevopufit.pdfIn PDF document text
    • http://ketolunumakomez.rf.gd/fojufitawirenizit.pdfIn PDF document text
    • http://pabipinipimano.epizy.com/36181394670.pdfIn PDF document text
    • http://sojusubelifaf.epizy.com/python_2._7_16.pdfIn PDF document text
    • http://kewumexor.epizy.com/bataveli.pdfIn PDF document text
    • https://s3.amazonaws.com/zuniverijesud/canciones_acordes_guitarra.pdfIn PDF document text
    • http://zajepatexesa.epizy.com/combinational_logic_design_lab_report.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_off0000d189.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD189 5576 bytes
SHA-256: b706cf489ee3cbf6bbd985dae2109d96fd2e5019e1b76ffe19dbb86bb6fe2e34
font_01_sfnt_off0000e466.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE466 10524 bytes
SHA-256: 1dcc0bb1e36661610e177a6389a37440faf4424e5bc70a187758a85f3fb42f85