Malicious PDF — malware analysis report

Static analysis result for SHA-256 08e60b3d5fdf7e47…

MALICIOUS

PDF

71.2 KB Created: 2020-11-18 14:23:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: e694299b0f70f12c040fde403e14da1f SHA-1: 364994a5227326f227aa7cd9c80af1d82b573449 SHA-256: 08e60b3d5fdf7e47714d8bc5dbaa79a068e0b725d470aa0afc4be7932e4987c2
116 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The sample is a PDF document flagged by ClamAV as Pdf.Phishing.Trojan. The SE_CALLBACK_LURE heuristic indicates the document is designed to trick users into calling a phone number, consistent with callback phishing or tech-support scams. An external URI pointing to 'trafffi.ru' was also extracted, likely serving as part of the lure or a redirection to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffi.ru/123?utm_term=faster+internet+2x-faster+3g+apk PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4373281/normal_5fb4b557af91b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379482/normal_5f8b2ea678114.pdfIn PDF document text
    • https://gupebuxoguwev.weebly.com/uploads/1/3/4/3/134381402/1162766.pdfIn PDF document text
    • https://pazijovipa.weebly.com/uploads/1/3/4/3/134327002/e46749.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379973/normal_5f905cee9f6e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415739/normal_5fa25b4238f4f.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/divikufifir/96690991000.pdfIn PDF document text
    • https://s3.amazonaws.com/metubevozisul/sp3_sp2_sp_hybridization.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/hidden_message_worksheets_grade_5.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/st_vincent_de_paul_auburn_wa_furniture.pdfIn PDF document text
    • https://s3.amazonaws.com/lopazura/tone_bender_mkii.pdfIn PDF document text
    • https://s3.amazonaws.com/fonazuzixagizir/47549857276.pdfIn PDF document text
    • https://s3.amazonaws.com/zufojadibi/gta_5_money_cheat_pc_offline.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_off0000c198.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC198 5452 bytes
SHA-256: 882df8f35319d71f7eef047bfd053cea5e38fbf077d0c49990db560faa6225ff
font_01_sfnt_off0000d44c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD44C 11128 bytes
SHA-256: 193b196db77919c6ebae9cd11313c19d7beb81337190e1826ff1c6581f569dcc
font_02_sfnt_off0000fa55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA55 16340 bytes
SHA-256: 8680b359cba86e2f6e9a78cf8c0f9e51b009e062d62f51157c34cd29f25a410b

Open this report in the interactive analyzer, or submit your own file for analysis.