Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c2a89b3007ac7aa…

MALICIOUS

PDF

78.3 KB Created: 2021-03-26 07:53:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 50b1b4328569aa39ddbdb4f556db8604 SHA-1: 8cb02f9b59c53694ad1a61b3937338698997e695 SHA-256: 0c2a89b3007ac7aa1c5190f04039057ef2f1f316a11bf92bed4e2ea89fb60ca6
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious resource. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the presence of external links suggests an attempt to deliver a secondary payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://resalured.ru/award?keyword=capital+de+giro+e+an%25C3%25A1lise+das+demonstra%25C3%25A7%25C3%25B5es+financeiras+unopar+pdf PDF link annotation
    • https://zokesafan.weebly.com/uploads/1/3/0/7/130775675/kadikerulofafemubi.pdfIn PDF document text
    • http://hrushch.space/99202749682i2b9o.pdfIn PDF document text
    • https://japipimimobuxi.weebly.com/uploads/1/3/1/0/131071183/8222990.pdfIn PDF document text
    • http://keepsufi.space/diludlpu6b.pdfIn PDF document text
    • https://sunajekivogemaz.weebly.com/uploads/1/3/4/8/134895881/vasuwewabemi.pdfIn PDF document text
    • http://cardioactiveufficiale.site/25093014911ofnt0.pdfIn PDF document text
    • https://fiwobezamarevev.weebly.com/uploads/1/3/2/7/132740324/ad34048cbce70f3.pdfIn PDF document text
    • http://wofurasosezisax.mywebcommunity.org/12529922427.pdfIn PDF document text
    • http://fc-aromat.ru/levizofevegoroe5glt.pdfIn PDF document text
    • https://jobajepefo.weebly.com/uploads/1/3/1/4/131482915/dedbed655822347.pdfIn PDF document text
    • http://kuzexamipapoxip.medianewsonline.com/jefukipunari.pdfIn PDF document text
    • http://a1metromovers.com/netgear_n150_wireless_router_wnr1000td1jv.pdfIn PDF document text
    • http://help-mediasupport.com/4514339124764xdg.pdfIn PDF document text
    • http://cetapp.xyz/do_you_want_a_nature_metaphoruafny.pdfIn PDF document text
    • http://giwapozolaleg.mypressonline.com/51471807372.pdfIn PDF document text
    • http://vivubowi.getenjoyment.net/different_types_of_cyberbullying.pdfIn PDF document text
    • http://uabiomanix.xyz/2926347441870f44.pdfIn PDF document text
    • http://skidki-day.store/me_before_you_ost_songt6oep.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/forupokisip/35910123726.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifumofelu/birdy_not_about_angels_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/luxaduzimase/xomufepezoje.pdfIn PDF document text
    • https://s3.amazonaws.com/loneminovu/simple_admission_form_format_doc.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/sosug.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/which_is_the_best_portable_hot_tub.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_off0000eaf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAF8 6016 bytes
SHA-256: 3f153894d3cca3dc63388010225306ab4684765d8f208e3e2708917fecff51ab
font_01_sfnt_off0000fe3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE3C 13720 bytes
SHA-256: 13807e0fdfa3ce299b3dad0a1ff6d578a0dd7ab8fcaec4638026b7d329b7f90d

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