Malicious PDF — malware analysis report

Static analysis result for SHA-256 2524bf3fe3f69a8a…

MALICIOUS

PDF

106.2 KB Created: 2021-03-29 19:12:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: c01e03d1036a4a52efb9ba605dc852a9 SHA-1: 1771709215f80616e1042f1d669f74827e266847 SHA-256: 2524bf3fe3f69a8a5385878f851e28121c05cc9335a7175d1ae1f0d0fdd21ce0
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 0.9997

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://xezojetit.ru/award?keyword=zhu+scalp+acupuncture+pdf PDF link annotation
    • http://dazazalemofofu.iblogger.org/3769690304.pdfIn PDF document text
    • https://cdn.sqhk.co/rejoxapuzopa/hiakdXg/fesuw.pdfIn PDF document text
    • https://cdn.sqhk.co/waxipefimafa/1vd9iUe/fruit_crusher_machine_price.pdfIn PDF document text
    • https://cdn.sqhk.co/forexidof/gig6geI/tomb_hunter_la_leyenda_de_akasha_opiniones.pdfIn PDF document text
    • http://sevotapapi.22web.org/vabovifoxus.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://4993f9ff-345c-4c03-a8ec-d4f8dac664d6.filesusr.com/ugd/debbe1_04122908b7064136b926e01b93561bed.pdf?index=trueIn PDF document text
    • https://ff102949-4c65-4b7b-925c-ea9a98d885fa.filesusr.com/ugd/7a16bb_a86a7bc53199431cb282e09363f69fb1.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/aca02f64-542e-4d7c-9217-4eb685424cba/24681409966.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a28b48cf-4101-4d8e-9acf-0525adaf71d7/12597824262.pdfIn PDF document text
    • http://juranakowi.rf.gd/diary_of_wimpy_kid_full_movie_watch_online_free.pdfIn PDF document text
    • https://s3.amazonaws.com/radubozufiwo/58072908901.pdfIn PDF document text
    • https://s3.amazonaws.com/lazolu/somosodakavipikonitenepeb.pdfIn PDF document text
    • http://sonazorapabame.epizy.com/roretawibasa.pdfIn PDF document text
    • https://f33d1b56-f518-462b-b61f-c1b5c1ba661c.filesusr.com/ugd/1c44ce_4d3c6c59335b4d1495e2839de4a5e28b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jenisozazewubo/ceneval_medicina.pdfIn PDF document text
    • https://s3.amazonaws.com/mixanaz/happy_birthday_song_with_name_anu.pdfIn PDF document text
    • https://b1706aec-e9b1-4c6c-9a93-f14ef4a1c402.filesusr.com/ugd/3b47cb_96cf6bdef40d42cd84057238d5772e64.pdf?index=trueIn PDF document text
    • https://677e6977-fc43-48b2-ac81-16e478c8573b.filesusr.com/ugd/3750c2_938a5470d20641249377edbfff728615.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/fetixakifino.pdfIn PDF document text
    • https://d45380bd-a93d-4ef2-b2bd-4c7806d1f6db.filesusr.com/ugd/5d2cf3_1e9d890ce57e43e8acc9a7ee0fbaad5a.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014640.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14640 7248 bytes
SHA-256: 11c6f33238d178f59c1deff1403b4abdfc888dbb34aa632beefefe36cf0cdb44
font_01_sfnt_off00015e45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15E45 5200 bytes
SHA-256: 0d20cb604d450c97a8d13223d675db03249b37c6b7caeaa6c5bdf79fde3f0772
font_02_sfnt_off00016ff3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16FF3 13464 bytes
SHA-256: c578fc2cdc3df33d0d45d052410f9889bc80cb80678e94ab90fed7d1c74cafab

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