Malicious PDF — malware analysis report

Static analysis result for SHA-256 db8f442c2c01ebf2…

MALICIOUS

PDF

90.1 KB Created: 2021-03-03 03:51:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 01b9e2cd0fa88f150bb99a549905b941 SHA-1: f1272037bb3b4ed14f5f8cd0d2e3c163fa223956 SHA-256: db8f442c2c01ebf2834ed798fdd01efa3bfdab52a534a0784a061435dc9315d5
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that points to a malicious domain, disguised as a search result. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. While no scripts were explicitly extracted, the presence of external URIs and the nature of the PDF content suggest it's designed to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jumiwimov.ru/wix?keyword=zelda+oot+debug+rom PDF link annotation
    • http://trokot-new.online/wataxodonevotaraxyncw.pdfIn PDF document text
    • http://dhl-order.info/dazelogukavuluzedkkwz0.pdfIn PDF document text
    • http://goldstein.capital/what_books_are_in_the_star_wars_canonec1yj.pdfIn PDF document text
    • http://autolombardpro.ru/25169578509lzjid.pdfIn PDF document text
    • http://mastericy-chistoty.ru/95660501893orwzl.pdfIn PDF document text
    • http://kigurumi.org/1606941029vytgq.pdfIn PDF document text
    • http://golden-bridge.pro/rutelisokejovahwpj2.pdfIn PDF document text
    • http://italywow.pro/lojudell9ufj.pdfIn PDF document text
    • http://sakhavto.ru/factory_inc_game_guideou2c9.pdfIn PDF document text
    • http://smeh-mif.space/47836409429s7e37.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/dudujopixejikug/9936310071.pdfIn PDF document text
    • https://s3.amazonaws.com/vukujidor/habasit_fabric_conveyor_belts_engineering_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/dudujopixejikug/88996369892.pdfIn PDF document text
    • https://s3.amazonaws.com/xomudufe/dj_remix_dance_music_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/fifuto/kendo_mvc_grid_clienttemplate_javascript_function.pdfIn PDF document text
    • https://s3.amazonaws.com/pojikovewijeja/danaxagagotajelizopuk.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_off0000fd34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD34 8632 bytes
SHA-256: e4a6fe8cfe9f87901978886586ca26fdf49fa91a0d3aa0869291014aae3cb0d4
font_01_sfnt_off000119c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x119C7 5064 bytes
SHA-256: c0c7ce2aae6aaeb392b59a2a208b81626333974dc583cb72e5fb5c3cdae51a3d
font_02_sfnt_off00012aea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12AEA 15608 bytes
SHA-256: 54631870e286d59bf5c56e6edc0e9d001ff51227136fabaf0e63efebc970516d

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