Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f4d64f8f965b84e…

MALICIOUS

PDF

82.0 KB Created: 2021-01-11 06:21:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 70f480be7d7d54a387226dbdbe08ba8a SHA-1: 5269cc6ea81c5a2e9fdde103a794bc99b881ed20 SHA-256: 2f4d64f8f965b84e62be3da2496f8283e68a41196346ddb807482d3ee8eca80e
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'trafftec.ru', which is likely part of a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, potentially for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://trafftec.ru/123?utm_term=mountain+heritage+high+school PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4387230/normal_5feb068c95a6c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377388/normal_5f90d50629977.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366367/normal_5f8f69b7a9e5d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425511/normal_5ffa3efd5e74d.pdfIn PDF document text
    • https://site-1172519.mozfiles.com/files/1172519/58555438692.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373753/normal_5f9a1dfb8ae73.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/lusabifef/tipijofipesije.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/ratud.pdfIn PDF document text
    • https://s3.amazonaws.com/gadumagabusodel/69604035979.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/tosoz.pdfIn PDF document text
    • https://s3.amazonaws.com/lejivugeleguwod/mivegupuxamumax.pdfIn PDF document text
    • https://s3.amazonaws.com/nujosuwemedadi/83681535276.pdfIn PDF document text
    • https://s3.amazonaws.com/vexosafugunu/equations_and_inequalities_worksheet_8th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/elephant_rock_formation_taiwan.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f6eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6EB 4948 bytes
SHA-256: f3e98f85c432f1b1092064cb8d76cfec3b1dd8d1aab198eaea41ed564e77bf35
font_01_sfnt_off000107bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107BF 11068 bytes
SHA-256: 61ea4a05961ddc6cdd15fc18fc51e22c1fdceee86a3616fa200bd009663fc7dc
font_02_sfnt_off00012d64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D64 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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