Malicious PDF — malware analysis report

Static analysis result for SHA-256 02c1aeedf102a2cd…

MALICIOUS

PDF

66.6 KB Created: 2020-11-14 07:14:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 44fad019e5a3585800c3e870504abf8f SHA-1: 8651e2395da8083ff1fa0f29b98eea843ffc20ff SHA-256: 02c1aeedf102a2cd8f97428d864790d796360af2563f19b6c4f193b66097eacf
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 'ggtraff.ru'. This indicates the document's primary purpose is to lure the user to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

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://ggtraff.ru/aws?utm_term=4d+wallpaper+free++for+mobile In PDF document text
    • https://dufavepuxafolim.weebly.com/uploads/1/3/4/2/134266173/sojoka.pdfIn PDF document text
    • https://mosovokiz.weebly.com/uploads/1/3/4/3/134333023/4216072.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381297/normal_5f9b2b4c6563f.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/wonoti/44955611074.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb12f4dd-9855-4dae-ba3b-66299af5121e/fox_run_mall_store_map.pdfIn PDF document text
    • https://s3.amazonaws.com/baxadelefofibuz/ff4_free_enterprise_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/tomahawk_creek_middle_school_founder_of.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e19fc318-b1f1-4b4e-83fc-53ae6baea806/53652426436.pdfIn PDF document text
    • https://s3.amazonaws.com/latufenaw/coleman_lazy_spa_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/lakadutof/bilingual_figurative_language_processing.pdfIn PDF document text
    • https://s3.amazonaws.com/remoxi/quranic_vocabulary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5edc18c9-88f8-46d3-bd3c-d610a8658bd8/roromabipaxonenuji.pdfIn PDF document text
    • https://s3.amazonaws.com/sonutopexaramuf/tarde_lo_conoci_capitulo_107.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b1fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1FC 5232 bytes
SHA-256: f6d2763a73965cd3695beb63955e06ddd5f93895499ea0ff424304f194949105
font_01_sfnt_off0000c3c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3C6 10380 bytes
SHA-256: 7e31e598d05acbcb85a7bc855f9fa01291447f0b3b9543b3704fb227e2b9fe95
font_02_sfnt_off0000e6c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6C4 16164 bytes
SHA-256: 3f70697d8cfd0b9becff5adcad726f9ffedcc5d773cc6f7abbcc82b2f8034994