Malicious PDF — malware analysis report

Static analysis result for SHA-256 afe8f3553aefc51b…

MALICIOUS

PDF

92.6 KB Created: 2021-03-05 17:05:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 262773be751ed010c98b452ed155aa89 SHA-1: 58b5b2bc8466b81990fee6cbe5a6f65dd37671d9 SHA-256: afe8f3553aefc51b750a405b8c20ef5f5bcb7fc715714ca6883a2b0c0f4ef0d3
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL pointing to a generator owner's manual, which is likely a lure. The presence of external URIs and embedded URLs suggests an attempt to redirect the user to malicious content, potentially for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://golowaki.ru/wix?keyword=powerback+5250+generator+owner%2527s+manual
    • https://cdn.sqhk.co/libuzewis/JOjaget/wallpapers_hd_android_logo.pdf
    • http://zaxegod.getenjoyment.net/novelaxadajog.pdf
    • http://fadewujetenuve.mywebcommunity.org/why_is_my_dryer_not_blowing_hot.pdf
    • http://zememor.sportsontheweb.net/gedanuzezu.pdf
    • http://gedadekenoz.mywebcommunity.org/how_much_do_warehouses_pay.pdf
    • http://wulutano.mywebcommunity.org/wuliva.pdf
    • http://vivekawiga.sportsontheweb.net/what_is_the_meaning_of_the_idiom_raise_the_roof.pdf
    • https://cdn.sqhk.co/muzolorakow/FvvjeEH/communist_symbol_minecraft_banner.pdf
    • http://roxedizusugu.mywebcommunity.org/lg_d415_specs.pdf
    • http://motubudasuvapan.medianewsonline.com/3289604052.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://0fe83ef2-ed6b-4f04-a52d-31fe3c58d8d1.filesusr.com/ugd/ade4e6_45b850dea6ec44f28cd725c47ee0ac1f.pdf?index=true
    • https://0eaabcdb-938a-45a6-85a3-1a7d796bbcdd.filesusr.com/ugd/8d6d25_442aaa27b53a4cc792d6aaf2cb89206d.pdf?index=true
    • http://sawesupunozigiv.atwebpages.com/20522310562.pdf
    • https://s3.amazonaws.com/nisiwanolom/50384431733.pdf
    • https://s3.amazonaws.com/jasipefulaxiduj/gasirunerubasudu.pdf
    • https://s3.amazonaws.com/dakebesuvum/88701336983.pdf
    • https://s3.amazonaws.com/fazujo/instrumentos_para_acopio_de_informacion.pdf
    • https://1e16da7b-5b4f-4122-a3c4-5c88c9d97cf7.filesusr.com/ugd/83f04e_eb4ec84fe9da4471849680cdd7a9c8b1.pdf?index=true
    • http://sojufuka.atwebpages.com/percy_jackson_movies_full_online.pdf
    • http://wumugajus.onlinewebshop.net/how_to_install_kenmore_oven_heating_element.pdf
    • http://nisetekotixob.myartsonline.com/finanzas_personales_lds.pdf
    • http://vibirokudod.myartsonline.com/71428531734.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012b0f.bin
4c45cdf247063bb9aa62ef8863b950b99c1a25b15768e077c8a4a8cb2a83c852		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12B0F 5848 bytes
font_01_sfnt_off00013f07.bin
c167ad3762bcdadd9bc59a040639c021b4cb51464c5b9022c22be2d13caeb8bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13F07 11032 bytes

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