Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8c31b88fef0aca1…

MALICIOUS

PDF

115.6 KB Created: 2021-05-11 13:14:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 26be09c8f340ec95f8a8feaf5d95da97 SHA-1: 19fb7d85c327b0f277a3c65a1ed9b74531745c92 SHA-256: b8c31b88fef0aca112f3367b5e8926c08394743b1e5bec1a87443835c07a7bfb
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9895

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://botokaw.ru/strik?utm_term=classical+guitar+exercises+for+right+hand PDF link annotation
    • http://suzepiju.iblogger.org/zolavufujazuzuturejenati.pdfIn PDF document text
    • http://besiditiduw.22web.org/benuvimogexaworizipot.pdfIn PDF document text
    • http://rusewigojubilon.mygamesonline.org/luluvawodijisak.pdfIn PDF document text
    • http://fazuwusi.22web.org/4863307632.pdfIn PDF document text
    • http://womakojufute.22web.org/consequential_validity.pdfIn PDF document text
    • http://tajuliwelofiti.medianewsonline.com/epson_wf_2530_wifi_setup_software.pdfIn PDF document text
    • http://fotobaruti.22web.org/jbl_flip_3_stealth_edition_price.pdfIn PDF document text
    • http://mosasekoz.22web.org/onerepublic_start_again_free.pdfIn PDF document text
    • http://maletewidulebil.iblogger.org/bofakosomed.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
    • https://s3.amazonaws.com/lezopobigeza/quran_english_translation_free.pdfIn PDF document text
    • https://cd9ed9ec-87d1-42be-9198-0b2de6c1db4d.filesusr.com/ugd/158fb9_c07d26563ee744e8b0148636a2604d76.pdf?index=trueIn PDF document text
    • http://dejamatokato.rf.gd/acer_aspire_5733z_drivers.pdfIn PDF document text
    • https://s3.amazonaws.com/wezukep/kidozixabunabibuxomeme.pdfIn PDF document text
    • https://7be8961d-effb-4c78-a255-78c3c9f0be09.filesusr.com/ugd/3dd68e_9df8b4cf30114495ab98b6f39076af24.pdf?index=trueIn PDF document text
    • http://gubawakelu.onlinewebshop.net/58896351319.pdfIn PDF document text
    • http://xapimiwosusuv.epizy.com/application_for_us_passport_form.pdfIn PDF document text
    • https://s3.amazonaws.com/pewibim/27274956783.pdfIn PDF document text
    • https://s3.amazonaws.com/tufujifinobiro/leica_blk360_manuale.pdfIn PDF document text
    • http://gaxilitexu.onlinewebshop.net/50993498342.pdfIn PDF document text
    • https://s3.amazonaws.com/jolunenafobuw/what_time_is_nyse_closing_bell.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e07dd061-3b85-45db-9e50-316eced0efbf/toro_ultra_blower_vac_51598_replacement_parts.pdfIn PDF document text
    • https://a8a2d6b8-6248-42a0-90a4-e25e421c2e59.filesusr.com/ugd/f63f29_ba603729d3474eafa9e08cc284844f6d.pdf?index=trueIn PDF document text
    • https://29474179-7c7c-44ae-84e0-3c37792f2e25.filesusr.com/ugd/7f817d_070d7684602b438c9b30d99b088ee894.pdf?index=trueIn PDF document text
    • http://mologesasik.epizy.com/barerovifesutabukis.pdfIn PDF document text
    • https://d56a38bf-d62e-453c-9b5b-5b2fe88aea46.filesusr.com/ugd/359e64_0f59b569d6894274b1b18f9d064467a5.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ad99e4b-eae0-4d72-bd34-349bbe0f4d16/25460987312.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000176ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x176AB 5256 bytes
SHA-256: f68e8a85ce5c172f9e3fc99d279d426add5553a47ce9974dc5a5da61041ac278
font_01_sfnt_off00018884.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18884 12664 bytes
SHA-256: 36d2d0a462251c122b8b54c805563eb4242f00850b8f7b7f2d4071efa58fcc17
font_02_sfnt_off0001b177.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B177 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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