Malicious PDF — malware analysis report

Static analysis result for SHA-256 56bca49e627dcb45…

MALICIOUS

PDF

72.0 KB Created: 2020-12-23 15:59:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 3f8100f7838a72d187dab3b6c4417a0b SHA-1: 187357311fae765d629e2e4c76be86f94b6f34e6 SHA-256: 56bca49e627dcb4508888c43c58939fe5d2a6b83fdfa0a7da2747deb60e7e9b7
154 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL 'https://gettraff.ru/strik?utm_term=anime+couple+dress+up+games+free+online' is identified as a potential phishing or malware distribution point. ClamAV also detected the file as 'Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0', further supporting its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/strik?utm_term=anime+couple+dress+up+games+free+online In PDF document text
    • https://cdn.sqhk.co/xiteduva/gfStxha/big_bang_theory_theme_song_full_lyrics.pdfIn PDF document text
    • https://cdn.sqhk.co/jevipugirofi/iRhijaN/kazore.pdfIn PDF document text
    • https://cdn.sqhk.co/wemupaxuziv/Vhehdji/example_of_what_s_to_come_crossword_clue.pdfIn PDF document text
    • https://cdn.sqhk.co/wepuvumug/BbTIheK/ancel_x5_user_manual.pdfIn PDF document text
    • https://padorapa.weebly.com/uploads/1/3/4/4/134496521/xixazabudosu.pdfIn PDF document text
    • https://donurufeto.weebly.com/uploads/1/3/4/8/134898164/9298169.pdfIn PDF document text
    • https://tavadubamik.weebly.com/uploads/1/3/4/4/134473349/3a20609bdf45.pdfIn PDF document text
    • https://fawefugixizim.weebly.com/uploads/1/3/1/3/131383791/3772485.pdfIn PDF document text
    • https://cdn.sqhk.co/biziduwime/C8QXjic/kudaluguwanidanamokunukug.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/sugaguxagu/why_indigenous_literatures_matter.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/675bc7f4-0eb6-4379-ac24-49e0ae071272/rajulamujubutatewe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7fe1712-ac51-4fec-a2d0-d2c1ec32d7ee/20162230161.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97bec134-c93f-40e9-b365-5d799cbea1ad/32262614339.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_off0000db14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB14 5464 bytes
SHA-256: 95fa864b672471b83eee47c411c2b42b997b0e6b66bfaf0be8fd1e01eb27ecb6
font_01_sfnt_off0000ed91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED91 11044 bytes
SHA-256: 618f009bdb0f4c6e4a8f52b9d89de456741bbde2b7d534bdf6ac43917d70ac04

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