Malicious PDF — malware analysis report

Static analysis result for SHA-256 208bdc292c9d12e8…

MALICIOUS

PDF

75.7 KB Created: 2021-04-02 18:59:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 2c51670e7855a693ffcf246cd0d9095c SHA-1: 806219035917aa2f46d73b3c20dbe544c165c70c SHA-256: 208bdc292c9d12e802106727486b91174f58f992022ba8ea7d09832814d1f816
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF that contains an external URI pointing to a URL that appears to be a lure for downloading a PDF. ClamAV and ML classifiers have identified this file as malicious, specifically as a phishing trojan. The presence of multiple suspicious URLs suggests a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://fokemale.ru/strik?utm_term=1001+most+useful+spanish+words+pdf+download PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4481509/normal_5fc6b0c14d8dc.pdfIn PDF document text
    • http://jemulobapamiwu.mywebcommunity.org/66624326919.pdfIn PDF document text
    • http://blancop.xyz/why_is_my_epson_printer_not_printing_colors1me5l.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388173/normal_5fde41221a5d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367920/normal_6031f1f73577f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401716/normal_5fc8e7ffec44c.pdfIn PDF document text
    • https://cdn.sqhk.co/lexaxemiji/fskN8X3/pregnancy_stomach_photos_week_by_week.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470552/normal_6058872aad0db.pdfIn PDF document text
    • http://stakingyfi.com/cds_ota_form_2020t21db.pdfIn PDF document text
    • http://zeboxagekej.sportsontheweb.net/what_are_the_colors_of_nature.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490266/normal_5fefeaf6989aa.pdfIn PDF document text
    • https://cdn.sqhk.co/ranemagesoga/FpZagjH/28986340100.pdfIn PDF document text
    • http://luxasireku.sportsontheweb.net/types_of_aircrafts.pdfIn PDF document text
    • http://zawiferiga.22web.org/donomujenalumoxafogodam.pdfIn PDF document text
    • http://gegejobusi.22web.org/bungsaufgaben_binomische_formeln_textaufgaben.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://daxogatuje.epizy.com/66510871270.pdfIn PDF document text
    • http://nufudojor.epizy.com/bootstrap_form_design_template.pdfIn PDF document text
    • http://gabepan.epizy.com/89309773777.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_off0000e86e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE86E 5472 bytes
SHA-256: 96ff4ab4ebd78bdeeee3deb56f3be5598c23645c5aa68ea8f3cee99cde420758
font_01_sfnt_off0000faed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAED 11440 bytes
SHA-256: 0ffb48778aeb182771f28235343cab23950ad5a1dff765de8b76e26ce6bd0bb6

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