Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bb50ccdfb0f4b01…

MALICIOUS

PDF

71.7 KB Created: 2021-03-20 20:45:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 0711090441e57cca89ee51fe9db17fa1 SHA-1: bdabe73c1f2a61529a2a66cc02d333afcb992196 SHA-256: 5bb50ccdfb0f4b01cb01be784f64d585e76782918efe17e7f5ff46a267cd0ac8
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, indicating a phishing attempt. The embedded URL, https://botokaw.ru/aws?utm_term=concise+history+of+western+music+hanning+pdf, is likely the primary lure, directing users to a potentially harmful site. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest an attempt to exploit vulnerabilities or trick users into downloading further malicious content.

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://botokaw.ru/aws?utm_term=concise+history+of+western+music+hanning+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4426087/normal_600407659c506.pdfIn PDF document text
    • http://damvglaz0.xyz/gisipojiruwuzepeduvi3jkf4.pdfIn PDF document text
    • https://danikobunib.weebly.com/uploads/1/3/4/7/134755608/nikifomol.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366377/normal_5fcd734322f4d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413362/normal_5fff5ebd3bc2c.pdfIn PDF document text
    • https://fevuxutub.weebly.com/uploads/1/3/4/1/134131759/f0c90.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393647/normal_5ff76e58cd72b.pdfIn PDF document text
    • http://igclienteam.com/sisibizajawera74yom.pdfIn PDF document text
    • http://about-central.com/does_planet_fitness_have_a_yearly_membershipe0v8a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416144/normal_5fe3a01095762.pdfIn PDF document text
    • http://normab-id.com/pavedujafulifadobubezafozhpm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wabelat.epizy.com/gepubabore.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc95c104-aab2-4012-828c-57b83b01897a/toxubarelokuna.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/76237087684.pdfIn PDF document text
    • http://xamuboba.epizy.com/19688075960.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfb6f076-81c4-45d0-a112-b568ebced86f/bulking_nutrition_plan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0276a1e-d415-4de5-8b22-9e5170242764/25683689083.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/was_rumpelstiltskin_a_real_person.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c95b726-b80e-4270-9845-2ab02d7ddb9c/4251339475.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/50593149890.pdfIn PDF document text
    • https://s3.amazonaws.com/xukanomarexumu/zotepokusajesavipotebek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4aea1f5-4e5b-4a8e-a575-1d2c14bb13aa/mitanuruviwara.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d8bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8BD 5636 bytes
SHA-256: 07f600ebdd0691cdab41e882102aef7f53705287fef89d3eec7b12b3922b66e2
font_01_sfnt_off0000ebd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBD3 10864 bytes
SHA-256: 0eabd2fc3af51e9d0fe61be2be77cf757ebd893e655f49017bc706f16de9cba2

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