Malicious PDF — malware analysis report

Static analysis result for SHA-256 4605311330b69386…

MALICIOUS

PDF

67.1 KB Created: 2021-02-15 23:26:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: b386cb9c689e81b9b059d007fcbad495 SHA-1: a985db2751c30f7073f64a1613a5d3e3a061fb86 SHA-256: 4605311330b69386b321a49422f9d848907f6cd1849af5093cc8593afac28c5a
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, contains references to a product manual and the wkhtmltopdf tool, suggesting a lure. The embedded URL points to a site that appears to be part of a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/wix?keyword=lowrance+x52+fish+finder+manual PDF link annotation
    • https://cdn.sqhk.co/romilononove/TiahQsI/zevudoselit.pdfIn PDF document text
    • https://cdn.sqhk.co/dixejetafap/igujcig/pilaxamegevulibesemoko.pdfIn PDF document text
    • https://cdn.sqhk.co/xaranoraf/L9haXjb/emergency_alert_system_sound_mp3.pdfIn PDF document text
    • https://cdn.sqhk.co/jirowolad/aJgfbNf/does_among_us_play_on_mac.pdfIn PDF document text
    • http://tuzirifuxeza.iblogger.org/modalavaxevabu.pdfIn PDF document text
    • https://cdn.sqhk.co/kupawusel/iejftjJ/xebamamuxobikeratufenox.pdfIn PDF document text
    • https://cdn.sqhk.co/wolowivem/K4Shhje/strikeforce_kitty_league_mod_apk.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/fomaralunex/9684529118.pdfIn PDF document text
    • http://maviwapas.epizy.com/20167962048.pdfIn PDF document text
    • http://nifekubipaxo.epizy.com/makazoxanurusurozozotidux.pdfIn PDF document text
    • https://s3.amazonaws.com/ragejufa/85857953232.pdfIn PDF document text
    • https://s3.amazonaws.com/vidadaviwal/wivufarijijexuniginuferu.pdfIn PDF document text
    • http://kujazidi.epizy.com/alinea_cookbook.pdfIn PDF document text
    • https://s3.amazonaws.com/widuxade/40261935718.pdfIn PDF document text
    • http://nosaras.rf.gd/62251728360.pdfIn PDF document text
    • https://s3.amazonaws.com/wetevali/16072754253.pdfIn PDF document text
    • https://s3.amazonaws.com/bojafazes/dictionnaire_anglais_franais_gratuit.pdfIn PDF document text
    • https://s3.amazonaws.com/roxawo/44797121544.pdfIn PDF document text
    • http://zapofekeba.rf.gd/legal_heir_affidavit_format_in_marathi.pdfIn PDF document text
    • https://s3.amazonaws.com/lijopavexanuse/c_format_specifiers_wikipedia.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_off0000cae0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAE0 5616 bytes
SHA-256: fa572e1f49840e38d42bf635bf2a757f460ecbda8971c78fb72ddaa5065c3869
font_01_sfnt_off0000ddf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDF2 9804 bytes
SHA-256: 63f184817b81dd7cc429af031ea86341b582376c1b2f6588b0343ad844bb1a35

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