Malicious PDF — malware analysis report

Static analysis result for SHA-256 12c5bb27181f3f42…

MALICIOUS

PDF

152.3 KB Created: 2020-12-27 12:22:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: caab9939c86d589c22a0302ea2ab73e4 SHA-1: eec09c19c6994a1e6374e5c4147806d96dfa0954 SHA-256: 12c5bb27181f3f4255e6242749f506b2065c2b2adeab8033f06151735034438b
162 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 'ggtraff.ru'. ML classification also strongly indicates maliciousness. The document body, though heavily obfuscated, contains text related to 'Oasis wonderwall guitar pro tab' and authoring information, suggesting a lure document. The primary attack vector appears to be directing users to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://ggtraff.ru/aws?utm_term=oasis+wonderwall+guitar+pro+tab In PDF document text
    • https://dagagiketilijo.weebly.com/uploads/1/3/4/3/134312633/kekawojugakujominagu.pdfIn PDF document text
    • https://segakimorepej.weebly.com/uploads/1/3/0/7/130738797/e5792dd477a9.pdfIn PDF document text
    • https://jezitazosebizag.weebly.com/uploads/1/3/4/7/134700096/taxadifupesafutom.pdfIn PDF document text
    • https://lopufofogepuxal.weebly.com/uploads/1/3/4/6/134695200/e6eb607c15a3782.pdfIn PDF document text
    • https://cdn.sqhk.co/lepitajirel/iibiact/vikings_cast_season_2_episode_3.pdfIn PDF document text
    • https://verikadofaja.weebly.com/uploads/1/3/2/3/132303102/8141434.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/dibedamoka/moana_streaming_free_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/fogewepevu.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/2012_buick_regal_gs_manual_review.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/monejozutamefate.pdfIn PDF document text
    • https://s3.amazonaws.com/xixonu/jasper_ireport_designer_mac.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_off000219de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x219DE 5384 bytes
SHA-256: 0a6e79b7bbeced8330974b0f1ff206f4a992fa21a578f6675c5ddf07cebaf643
font_01_sfnt_off00022c42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22C42 12900 bytes
SHA-256: 2e7e445e96f43702b0b888d86a135d82b533b3e1d81be0698ec787c189ff941c