Malicious PDF — malware analysis report

Static analysis result for SHA-256 75301865f47cf265…

MALICIOUS

PDF

153.7 KB Created: 2021-02-18 12:41:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 109f2089eb20efd9ab58222149d0c9ac SHA-1: e7ba01b67329cad09b5a5d0f9b5e47b12f70e601 SHA-256: 75301865f47cf26542ebb8e1ff3583aefd084e37de740a0c93d109988fd21559
96 Risk Score

Malware Insights

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

The file is a PDF document flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier. It contains an embedded URI pointing to a suspicious domain, which is likely used to deliver a malicious payload or conduct phishing. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the presence of the malicious URL strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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
  • 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://maypoin.ru/aws?utm_term=1611+kjv+bible+with+apocrypha PDF link annotation
    • http://vizionsmc.net/setejeturezupofj0wmw.pdfIn PDF document text
    • http://poradoit1.site/cell_culture_proceduregnbqi.pdfIn PDF document text
    • http://vujavapekebabop.66ghz.com/dunoj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409238/normal_601d8b946b1e2.pdfIn PDF document text
    • http://electorat.org/tavepuwamutogexubaby9hsz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445864/normal_60257f9021026.pdfIn PDF document text
    • http://tekdouche.xyz/ccdc9b_statutory_declaration_form8z3r1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477376/normal_602414902f8fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485296/normal_6026e2d2a70a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369927/normal_5fe824bda20f2.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/sakaburepagase/anari_film_song_pagalworld.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_off00020806.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20806 5172 bytes
SHA-256: 804acda7057ffe4eac9aca19dcaac12ce43504412ea9d7465a1e45a7dbc54aaa
font_01_sfnt_off000219c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x219C3 15804 bytes
SHA-256: 3ed0fe67ecabd79d85de1f19295fbf0b4e6ba85a1cae528a5a9a7e68e753e87d
font_02_sfnt_off00024ba5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24BA5 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3