Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb506cb7b963a05b…

MALICIOUS

PDF

76.8 KB Created: 2021-02-01 07:33:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 2f79698939a9c2908ca6d917cae528a5 SHA-1: 84c2c4b32911ada91c3fe076fdd8f35df9c1f517 SHA-256: eb506cb7b963a05b6dbf2f1dc66e7826a1aa2a94e10227cbf55ad908bdcff426
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs users to a suspicious domain, likely to deliver a malicious payload or phish for credentials. The document body, though heavily obfuscated, contains references to 'blazing star mod apk', suggesting a lure for users seeking software modifications.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/aws?utm_term=blazing+star+mod+apk PDF link annotation
    • https://cdn.sqhk.co/zurefaxenov/5gfP552/govelodemozi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497358/normal_5fd5f81634530.pdfIn PDF document text
    • http://wowunoli.22web.org/witevuvozojesif.pdfIn PDF document text
    • https://cdn.sqhk.co/numokafas/aSMjajj/gozugojav.pdfIn PDF document text
    • https://cdn.sqhk.co/rujiwujik/cj6GhaF/79777126794.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vubixijugisoloz.epizy.com/3301099349.pdfIn PDF document text
    • https://s3.amazonaws.com/wupuxus/european_cardiology_guidelines_hypertension.pdfIn PDF document text
    • http://lojizaruxaz.rf.gd/azatioprina_50_mg_bula.pdfIn PDF document text
    • https://s3.amazonaws.com/pexodugosa/ludovico_einaudi_nuvole_bianche_sheet_music_free.pdfIn PDF document text
    • https://s3.amazonaws.com/juwofuxufijup/excel_macros_tutorial_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/kia_cerato_koup_2012_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tikoweravisixu/foxboro_reporter_address.pdfIn PDF document text
    • https://s3.amazonaws.com/nojemi/autoimmune_atrophic_gastritis_guidelines.pdfIn PDF document text
    • http://tuwelifijija.rf.gd/jivesa.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_off0000e098.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE098 2880 bytes
SHA-256: aff11289bf87f92bc53c0e2abc335208e29b6db8a954e82fd0a5595ffa95d344
font_01_sfnt_off0000ead6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAD6 5444 bytes
SHA-256: 649ff87fb5e4171c1bb476585f83d1798fcb7f19a0fafe27f1dbcda70af6ee66
font_02_sfnt_off0000fd4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD4B 11520 bytes
SHA-256: f1cb1a63a885b3aa03bb44af87e77c98a66bc6075c0184c14391c089f41e5b8f