Malicious PDF — malware analysis report

Static analysis result for SHA-256 96ba1f255e18d225…

MALICIOUS

PDF

76.3 KB Created: 2021-01-06 20:52:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 4854a07a287a024cc8e95aafda24330e SHA-1: 638dfed7b35ed823df8c43dd97ff28ade618af61 SHA-256: 96ba1f255e18d225687f78b9c7f7f1b73c9a0fb5cb9241c32870f1be52da6d5d
154 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including a critical alert for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL, https://traffine.ru/aws?utm_term=shadow+leveling+guide+poe+3.+5, is the primary indicator of compromise, suggesting a phishing or malware distribution attempt. ClamAV also detected it as Pdf.Phishing.Trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://traffine.ru/aws?utm_term=shadow+leveling+guide+poe+3.+5 In PDF document text
    • https://cdn.sqhk.co/razonavari/gjicgcJ/japanese_alphabet_hiragana_quiz.pdfIn PDF document text
    • https://cdn.sqhk.co/rawerusiwala/EOJheJr/xigolozupefodetofewore.pdfIn PDF document text
    • https://cdn.sqhk.co/mifebemige/dlAtjf2/zajevukizepukodafeloz.pdfIn PDF document text
    • https://cdn.sqhk.co/kanedufopuma/7iahi6k/bouncy_seat_age.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377109/normal_5f8a05860c54c.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/pesetufavo/meaning_of_segment_reporting.pdfIn PDF document text
    • https://s3.amazonaws.com/zazelujeju/area_rectangle_counting_squares_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c917945-6760-4663-a492-1601d15827b5/rujufibowurotuwenelugad.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/bank_draft_form.pdfIn PDF document text
    • https://s3.amazonaws.com/vogubivajavofu/44310413934.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/arangetram_dance_form.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e6e32f0-855d-4d77-b1f9-dbb921491288/xasadunutivi.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_off0000eb98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB98 5520 bytes
SHA-256: b9ed52a0f918e05b43a9e185dc7f813a0949b58f4a20011d183932fab0f75104
font_01_sfnt_off0000fe80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE80 11064 bytes
SHA-256: 3d042ca2f8a9289eb982cbe36107ff2be822f61f47949957d0ead65df6ac5603

Open this report in the interactive analyzer, or submit your own file for analysis.