Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ec243d68eb7b975…

MALICIOUS

PDF

67.2 KB Created: 2021-02-02 16:42:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 53a76ba40c1b0899330e2b17fa57ea24 SHA-1: ee89253a1a0d89ff88e788650cb5deb8e6cd5b60 SHA-256: 9ec243d68eb7b9755517ae429ebec20bf01e49b77187712a039231c362d4d03c
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 phishing or trojan payload. It contains multiple embedded URLs, one of which is presented as a "good sam dinghy towing guide" to lure users to a potentially malicious website. The presence of embedded URLs suggests an attempt to redirect the user to a second-stage download or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/wb?keyword=good%20sam%20dinghy%20towing%20guide PDF link annotation
    • http://xbet1.fun/83375967013sslwv.pdfIn PDF document text
    • https://xumebarukez.weebly.com/uploads/1/3/4/6/134687090/6562e2cf37c1ca.pdfIn PDF document text
    • https://gabejopow.weebly.com/uploads/1/3/4/5/134597712/tojotalakozedo.pdfIn PDF document text
    • http://santaparker.store/jinokipamotoduycb77.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366653/normal_60147733ce089.pdfIn PDF document text
    • https://cdn.sqhk.co/fuluzagile/hbgjMha/mawadeto.pdfIn PDF document text
    • https://gixinizolovuz.weebly.com/uploads/1/3/5/3/135348456/mabegexofotu.pdfIn PDF document text
    • http://d2-club.ru/43940193870xskf5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378857/normal_5fe55d13ac30c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471096/normal_5fdead827fa52.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392237/normal_5ffabe3cbc7ed.pdfIn PDF document text
    • http://anbieterbewertung-autoscoutch.com/download_king_of_fighters_vs_street_fighter0a5eb.pdfIn PDF document text
    • https://cdn.sqhk.co/pugijuzo/hginOje/chicken_invaders_2_christmas_edition.pdfIn PDF document text
    • https://cdn.sqhk.co/fijajiles/qhbk1he/rally_car_snow_tires.pdfIn PDF document text
    • https://cdn.sqhk.co/marixefe/05MAwhf/pavajewidiwuvogopifopomor.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469623/normal_5fe47af2b213d.pdfIn PDF document text
    • http://losqutoq.online/71409122255tevpa.pdfIn PDF document text
    • http://nesobaka3.xyz/problemas_y_ejercicios_de_analisis_matematico_demidovichuwa2h.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459796/normal_60172b1b7b8b3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378157/normal_5ff4ed76b52b4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000cc72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC72 5336 bytes
SHA-256: dafc1bae28bb54249244755b9a84251663f064996a436b1b97d859a60a8270df
font_01_sfnt_off0000de8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE8D 9712 bytes
SHA-256: 46405c459d923066a22ec2686d6669bd33f04c71422043e01f4229000e37a2e1

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