Malicious PDF — malware analysis report

Static analysis result for SHA-256 20d9024cbbf95442…

MALICIOUS

PDF

281.8 KB Created: 2021-03-17 20:30:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: b55643099e13c765a41ec9243fad7837 SHA-1: 0411285c4a260534777b6b634d7175fa769a4416 SHA-256: 20d9024cbbf9544229f5917d135c685ca420572c05fc1fcea992ddad61a6c63d
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URL pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, appears to be a lure related to 'Naruto episode 133 wiki', aiming to trick users into clicking the embedded link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

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://mezovuduw.ru/wix?keyword=naruto+episode+133+wiki PDF link annotation
    • http://beliyden.xyz/25621955992v872f.pdfIn PDF document text
    • http://malespw.xyz/3007255469856xhq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471091/normal_5ffcb9ffbf387.pdfIn PDF document text
    • http://1pokypki.website/spongebob_moves_in_mobile_gameobz4x.pdfIn PDF document text
    • http://nitajikiwijofo.22web.org/sociopata_y_psicopata.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391024/normal_600f5d329febb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415964/normal_5ff49791eb77c.pdfIn PDF document text
    • http://private-channel.site/how_to_begin_a_retail_businessgtctv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://fexewon.rf.gd/criterios_de_normalidad_y_anormalidad_en_psiquiatria.pdfIn PDF document text
    • https://d71fc03c-aea6-48f7-a990-8afffb22108d.filesusr.com/ugd/3de8a6_98bfdf4bb6164efab880a5b0e27eb3ec.pdf?index=trueIn PDF document text
    • http://rajixubododafu.epizy.com/understanding_youth_adolescent_development_for_educators.pdfIn PDF document text
    • https://09972071-4174-499b-90b1-de3619f59f53.filesusr.com/ugd/d1c05f_b56bb50dba83434582be97783b03a431.pdf?index=trueIn PDF document text
    • http://dijovomivuz.rf.gd/zombie_catchers_2_for_pc.pdfIn PDF document text
    • http://madepug.rf.gd/does_vizio_smart_tv_support_screen_mirroring.pdfIn PDF document text
    • http://zanixav.rf.gd/zakigupomotilusejove.pdfIn PDF document text
    • http://puwuvazesako.rf.gd/74037187236.pdfIn PDF document text
    • http://jokilezitewoj.epizy.com/40191951578.pdfIn PDF document text
    • https://9610c43f-1b2a-4a8a-b660-75aaf3908198.filesusr.com/ugd/286fb8_4404ef7f47f84173bee218855e586297.pdf?index=trueIn PDF document text
    • https://44eeb0f0-4dc9-4d8b-b3fd-cc7ace98e90e.filesusr.com/ugd/a083a1_9242daeda4ed4c6682631cff3806f3df.pdf?index=trueIn 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0001be50.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1BE50 196632 bytes
SHA-256: 6fb508764f43b29a761719ac9dc3b6bedf536f037f50f4fa881d56c485c7544a
font_01_sfnt_off0003fff4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FFF4 5036 bytes
SHA-256: 99c73dbae8dccc2c870f607b37128d63b1fafceb0dd1a0b7ea3d3897d1e149f2
font_02_sfnt_off0004114b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4114B 26124 bytes
SHA-256: 0c89b7071206460c63a1bec3fc1aed93545a6d0460b83257497053d38d14fbc9
font_03_sfnt_off00044961.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44961 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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