Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2e250dddf88e75f…

MALICIOUS

PDF

71.8 KB Created: 2021-01-12 14:57:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: febc465b3c028700140d3de1f055bc7b SHA-1: 8071149b1a038914d480ebd726653b8623fe33c6 SHA-256: a2e250dddf88e75fbcd056aead1134b87e918e2c89ed6a702aa2f0f1fc6db849
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://gettraff.ru/aws?utm_term=dj+music+dance+video'. ML classification also strongly indicates maliciousness. While no scripts were extracted, the presence of a malicious URL within the document body suggests an attempt to lure the user to a compromised or malicious site, consistent with phishing or malware delivery.

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://gettraff.ru/aws?utm_term=dj+music+dance+video In PDF document text
    • https://cdn-cms.f-static.net/uploads/4413712/normal_5fa6f91fcbf81.pdfIn PDF document text
    • https://site-1174733.mozfiles.com/files/1174733/kuxugotuxegor.pdfIn PDF document text
    • https://site-1178426.mozfiles.com/files/1178426/jajirupexisivi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483346/normal_5fdbd005219b5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374954/normal_5f8d08841268f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365649/normal_5f8774fd63197.pdfIn PDF document text
    • https://site-1174284.mozfiles.com/files/1174284/50762998727.pdfIn PDF document text
    • https://site-1180537.mozfiles.com/files/1180537/xajes.pdfIn PDF document text
    • https://site-1171695.mozfiles.com/files/1171695/music_player_audio_video_player_ringtone_maker_download.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/firigugixujotov/answer_garden_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/mejikoxa.pdfIn PDF document text
    • https://s3.amazonaws.com/dalava/1845610012.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/53597113389.pdfIn PDF document text
    • https://s3.amazonaws.com/fowonaxul/mastering_physics_answers_chapter_6.pdfIn PDF document text
    • https://s3.amazonaws.com/nelizenejakarug/ehsas_nahi_tujhko_male_ringtone.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/egg_inc_cheats_and_hacks.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_off0000d9b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9B2 5092 bytes
SHA-256: 4b2cd28bde40476740c4be786a6c39b99de6d565338d94324316ab6ec59b3290
font_01_sfnt_off0000eb03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB03 11860 bytes
SHA-256: 5bc2551c298b03e9f50b279247fe2fcba0961878fdba18099fdfa4746f889bbc

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