Malicious PDF — malware analysis report

Static analysis result for SHA-256 1305f4e0d12c6bbd…

MALICIOUS

PDF

79.9 KB Created: 2020-12-27 18:26:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: c32309b7d0caf83e982b53fbab8431af SHA-1: 781582f1e3097a80ef4a741fca9897d9d21573dc SHA-256: 1305f4e0d12c6bbd3e9697fcc9f5bc30dcdc5fc7addb9a042309499f9d446699
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 'traffking.ru'. This URL is presented in a context that suggests a lure for downloading a tool, likely a phishing attempt. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://traffking.ru/123?utm_term=8+ball+pool+aim+tool+apk In PDF document text
    • https://cdn-cms.f-static.net/uploads/4454424/normal_5fbd31fa3a25e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464525/normal_5fca4496e7fce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383688/normal_5f8ee92b0e6a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448720/normal_5fa0d40d8f4ac.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/juwofuxufijup/puzzle_game_master_escape_room_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/nupotukig/auditing_assurance_and_ethics_handbook_2017_australia.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/punefebav.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/ashok_leyland_dost_specification.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/37226013485.pdfIn PDF document text
    • https://s3.amazonaws.com/belapawerezuju/nupatofovesugisinurubuf.pdfIn PDF document text
    • https://s3.amazonaws.com/niporofez/josejopatego.pdfIn PDF document text
    • https://s3.amazonaws.com/bifamomove/aok_bonusheft_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/nobogurejurivemerawidibi.pdfIn PDF document text
    • https://s3.amazonaws.com/dobesogum/44240679940.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c926.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC926 1660 bytes
SHA-256: 6bc252048ba905ae83fec4d9258ee8bdaf8621b391457fd064862043d29a1c76
font_01_sfnt_off0000d169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD169 4996 bytes
SHA-256: 148dba34aca5109192e9a7464c9ffeddd6653735215515adf6140162440cfa72
font_02_sfnt_off0000e24d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE24D 2972 bytes
SHA-256: 958305919ad0edfcc7ce30d3977ddc17013e0d16274bc1b642d186be93b75872
font_03_sfnt_off0000ee7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE7B 14136 bytes
SHA-256: b11f782589de2318c582f62edc13d670c760776c021eef5883b1b47a8faad430
font_04_sfnt_off000118bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118BD 16760 bytes
SHA-256: a70b1064f9fdd7afe4825ca1f056cddb6ebc3a870a70e7a94596b4db799d55a1

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