Malicious PDF — malware analysis report

Static analysis result for SHA-256 e40b097c6c96fc64…

MALICIOUS

PDF

74.8 KB Created: 2021-03-12 12:42:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: d1373bfb1c1cc8f85e0a9e46d0dab8d7 SHA-1: 261dc13c6d9b791c781e2e0835cd0b045ac3cff6 SHA-256: e40b097c6c96fc642a97f5200933ebd7f631f64e2c7290859ce48a4ef65abf36
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. The document body, though heavily obfuscated, contains references to 'update google play store', aligning with the 'SE_INVOICE_LURE' heuristic. The embedded URI 'https://xezojetit.ru/123?utm_term=update+google+play+store' is a primary indicator of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://xezojetit.ru/123?utm_term=update+google+play+store PDF link annotation
    • http://gejokakop.mygamesonline.org/2015_mazda_3_hatchback_owners_manual.pdfIn PDF document text
    • http://gonugotez.22web.org/fearless_lyrics_lost_sky_part_1.pdfIn PDF document text
    • http://fiwisud.getenjoyment.net/how_to_fix_a_stuck_rb_button.pdfIn PDF document text
    • http://biniwitovo.mywebcommunity.org/roku_3810r_vs_3811r.pdfIn PDF document text
    • http://wazepewazivulil.mywebcommunity.org/pepefidavo.pdfIn PDF document text
    • https://cdn.sqhk.co/rexixugepir/rgjbkkr/xapupugebideboxobepir.pdfIn PDF document text
    • https://cdn.sqhk.co/dovawowo/iiiaM1W/72899459563.pdfIn PDF document text
    • https://cdn.sqhk.co/guvevifowo/5Bjh8L7/super_dancer_2020_audition.pdfIn PDF document text
    • https://cdn.sqhk.co/baxorurifina/X7mjoie/loropiwenuzemitogep.pdfIn PDF document text
    • http://lazujifoxupa.getenjoyment.net/84339106105.pdfIn PDF document text
    • https://cdn.sqhk.co/salipini/Zidicmn/wrist_stretching_exercises.pdfIn PDF document text
    • http://fijexojor.getenjoyment.net/log_graph_paper_generator.pdfIn PDF document text
    • http://lenugaguv.medianewsonline.com/kiran_publication_bank_math_book.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://04a80c79-134c-446e-801b-0c1635678e59.filesusr.com/ugd/5cebf8_8abc4e15fff64506aa231b8478628d3f.pdf?index=trueIn PDF document text
    • http://pilejifizodan.onlinewebshop.net/55555432607.pdfIn PDF document text
    • http://zeteximezoxa.myartsonline.com/polimumokupijifemolasamen.pdfIn PDF document text
    • https://3857ddc0-2b33-46ba-b4a8-ebef9b167687.filesusr.com/ugd/5cc0d5_4cdc11a9233242018d80cf4e8e27cb5d.pdf?index=trueIn PDF document text
    • http://zopefunexot.epizy.com/fovunakepakifuketeka.pdfIn PDF document text
    • https://73856814-13bb-4d44-aeaf-752cce6ba6bd.filesusr.com/ugd/a0d21a_0b763c61c12d4781adde2e61be2961e5.pdf?index=trueIn PDF document text
    • https://56f9ebfc-1b58-4ccd-90b9-24793863e956.filesusr.com/ugd/0f3536_e65dab4c051b44a693ef69160586e2ab.pdf?index=trueIn PDF document text
    • http://mipagolawalixa.onlinewebshop.net/81018288281.pdfIn PDF document text
    • https://a1d3e036-d9a1-4be1-9d2f-eedbb581cb22.filesusr.com/ugd/3ce946_efab135d2f8c4119a2a8cf30714f2d5f.pdf?index=trueIn PDF document text
    • http://danesanifulen.rf.gd/blindspot_season_4_episode_guide_wiki.pdfIn PDF document text
    • https://a52dd608-e7dd-4d50-8005-e0fd7a3896b4.filesusr.com/ugd/43d2fc_03de7db9fc2d43babb906381c5de37c3.pdf?index=trueIn PDF document text
    • https://5be7aec3-7d66-433b-ae1d-2bfb807ddf2a.filesusr.com/ugd/24deb6_211debae9ced426bb2009312991e2932.pdf?index=trueIn PDF document text
    • https://8641c524-1fb5-4292-87ed-dd72f64d6c22.filesusr.com/ugd/9b7d8a_4023f9c6a1464d59a26c58efe0b0d0d3.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e7b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7B5 5220 bytes
SHA-256: f93e6e0bd0740a3e50905d8781ff2c7e3b59e88ab5db4b0c43610cd69b1bd457
font_01_sfnt_off0000f98d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF98D 10512 bytes
SHA-256: e296d9b67d98349fada1984b9b1cb4d05a17cabfb2e828b1409da302e6aed9cd

Open this report in the interactive analyzer, or submit your own file for analysis.