Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6996560e0575dcc…

MALICIOUS

PDF

61.5 KB Created: 2020-12-23 11:44:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: a62c30d534bc94b46d289e844c31273c SHA-1: 65d2ffc66fc0e160f1791a43228b2229fe6674ed SHA-256: f6996560e0575dccbcf406c74e8bfd91225fc2005e46f0a2a4681f8c994fd954
154 Risk Score
Tags
free-cdn-ebook-manual-lure

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 'https://gettraff.ru/123?utm_term=thermos+grill+2+go+fire+and+ice'. This URL is the primary indicator of malicious intent, suggesting the document is designed to lure users to a compromised site. The ML classifier and ClamAV detection further support the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/123?utm_term=thermos+grill+2+go+fire+and+ice 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/tomaxade/adobe_acrobat_pro_free_thaiware.pdfIn PDF document text
    • https://s3.amazonaws.com/vabedafozo/a_change_is_gonna_come_aretha_franklin.pdfIn PDF document text
    • https://s3.amazonaws.com/nefunupu/adelphoe_terenzio.pdfIn PDF document text
    • https://s3.amazonaws.com/nerugiraxura/disopatenefo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5fba1b5-ef00-4df4-b5f2-e582a439d7a2/tuwutafiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8991cf2-5b40-4bd7-8522-ccb164e07ead/low_life_rf_guardian.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20353a00-fcf0-49c1-97b9-9a5c8df62034/fomekifoti.pdfIn PDF document text
    • https://s3.amazonaws.com/limepusotanal/40093736452.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db85cf95-da30-4572-b746-e1f61e665776/63586576936.pdfIn PDF document text
    • https://s3.amazonaws.com/lokijuronig/40396579675.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/fortnite_insider_cheat_sheet_week_5.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bbb75bf-76d0-4509-9144-cabf2297e200/19967378451.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/vadebemaxodepopilurukiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03f1d76f-9756-4058-8e14-efea6ec4593e/megubinelapuzogefobi.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_off0000b21a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB21A 5516 bytes
SHA-256: 7a427babdc39d4a9c79a79751663e10900559b287cbe32b94bd9a41f1b75d719
font_01_sfnt_off0000c4ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4AD 10304 bytes
SHA-256: 54e99e85c522fdcf34047e5c7f744cf871bc5c5e262951705abe2da6824f404d

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