Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9e2d8c7b7a32f37…

MALICIOUS

PDF

67.9 KB Created: 2020-12-25 10:01:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 34de19e114c94799ca11b8e55a7cefa1 SHA-1: 39e67a936f334906fb84c86f124b432f8490a73c SHA-256: f9e2d8c7b7a32f37104c30e903d1398c405a9a10cbd7b9bad23617addfa83c12
154 Risk Score

Malware Insights

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

The sample is a PDF file flagged as malicious by multiple heuristics, including a critical finding for a redirector link to 'traffmen.ru'. This indicates the document's primary purpose is to redirect users to a potentially harmful external resource. While no scripts were explicitly extracted, the presence of a malicious redirector URL strongly suggests an attempt to lure users into a phishing or malware download scenario.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://traffmen.ru/aws?utm_term=ceramic+matrix+composite+materials+pdf In PDF document text
    • https://static.s123-cdn-static.com/uploads/4366367/normal_5fc63c8ab4b02.pdfIn PDF document text
    • https://cdn.sqhk.co/xinovupu/jaqdqih/one_punch_man_season_3_episode_1_full.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487005/normal_5fb9e9364fb47.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490125/normal_5fc86d216eca0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365553/normal_5f87818ac001e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369179/normal_5fc2a9602999d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/8de3b103-5dc4-4be9-8303-ce761461dd5e/roman_sun_god_sol.pdfIn PDF document text
    • https://s3.amazonaws.com/jazamerijekufol/30773485172.pdfIn PDF document text
    • https://s3.amazonaws.com/vojapu/jopobila.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisi/harpercollins_study_bible_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e927e9b4-7227-462a-8164-4afd661b6a83/stihl_chainsaw_ms180_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/turip/nosuvima.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/gofoxabubulelofexofew.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/artificial_intelligence_books_for_beginners.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_off0000cc95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC95 5272 bytes
SHA-256: 66936561ec7f4cd8556751573b629594cd42108ea3547861cde5125dfa141649
font_01_sfnt_off0000de6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE6D 10920 bytes
SHA-256: 33d09048875145e5cd1464812d74e2522feb5b77ad0bc5b4d925487cc005162f

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