Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6cde4b5c92c299a…

MALICIOUS

PDF

69.1 KB Created: 2021-02-08 00:20:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 2338f1fd136109aac59634c4329506ba SHA-1: 4642e6f49784e39ea8efebe42c7310b94df68968 SHA-256: d6cde4b5c92c299ab8047ff31f5530f97d7bd08e95fec4de894c280acb633531
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains multiple embedded URLs, suggesting it is designed to redirect users to malicious sites or download further payloads. The document body's content, "Tip toe lyrics", is likely a lure to disguise the malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs strongly indicate a phishing or malware distribution attempt.

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://jacksth.ru/aws?utm_term=tip+toe+lyrics PDF link annotation
    • http://muruxilirafet.iblogger.org/60580224837.pdfIn PDF document text
    • https://cdn.sqhk.co/lixejudazeza/ymhavci/gobalipuwiguxa.pdfIn PDF document text
    • http://ygrash.website/42245577858aowql.pdfIn PDF document text
    • https://cdn.sqhk.co/mowukirew/zEji8hh/idle_factory_tycoon_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/dawajimet/jbieFhb/redixezamefala.pdfIn PDF document text
    • https://cdn.sqhk.co/suzeboxiwo/bqYhejg/sosabadogifazekuri.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://favigagiwu.epizy.com/vewinabijejanafep.pdfIn PDF document text
    • https://s3.amazonaws.com/getizar/best_formations_fifa_20.pdfIn PDF document text
    • https://s3.amazonaws.com/gewisetug/messenger_facebook_apk_old_version.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/zosyn_davis.pdfIn PDF document text
    • http://jepojofugag.rf.gd/wugiditowut.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_off0000d4d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4D9 4768 bytes
SHA-256: 1f0f5ad0ae35a0bd477652ea5ce7d7c63ac0a0bc6996b902f5e5c8c3a6f3d044
font_01_sfnt_off0000e52f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE52F 10312 bytes
SHA-256: caabc8b7db6f7d23ece8d5fbabc3a98ce4ff71d90468ab5ce0da52dd5fab57a6

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