Malicious PDF — malware analysis report

Static analysis result for SHA-256 21a5b80041e6232d…

MALICIOUS

PDF

81.5 KB Created: 2021-03-10 22:57:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 78f437b4b980819fbcea8db5340ac00a SHA-1: 8f5ab02a1a802e8d1c6fd37e05b7dc0b94a80899 SHA-256: 21a5b80041e6232da33664246d37975d0bbdb2aa91a951834e8b6d088a1b758e
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 0.9990

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://mezovuduw.ru/123?utm_term=company+secretary+application+form PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366385/normal_603c639a4ca36.pdfIn PDF document text
    • http://coloradocustomelectric.com/19591261911zq01u.pdfIn PDF document text
    • http://testertumentum.space/fuvojopemekafazibef3xzy.pdfIn PDF document text
    • http://blancer.xyz/nurimowemuzn0bl4.pdfIn PDF document text
    • http://profer-opt.ru/sword_art_online_season_3_english_castrntjy.pdfIn PDF document text
    • http://detonic-hypertonie.website/boot_loader_windows_7_64_bitm5803.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411691/normal_6048164d43146.pdfIn PDF document text
    • http://org-fruit.space/89615285818jt0ld.pdfIn PDF document text
    • http://znohist.site/86271205564etxhu.pdfIn PDF document text
    • http://clubstore.info/paguxowltt7.pdfIn PDF document text
    • http://labiosdewonda.com/pefitesu4ml3j.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://ab25a8b3-4d80-4d4b-93a1-c1347014fa7c.filesusr.com/ugd/8d0191_9c31eff948654a04b591fd193dde2b72.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fixararololu/15325264533.pdfIn PDF document text
    • https://s3.amazonaws.com/gatazeromij/50th_birthday_party_invite_templates_free.pdfIn PDF document text
    • https://ed4d48c2-14ea-47f5-a89a-b82193587323.filesusr.com/ugd/8ce377_f76fded8176c41afb79c76d49de850e5.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4c5a677-8fb2-46a1-865c-3a92e8ca8b1b/15086843722.pdfIn PDF document text
    • https://367e539a-c541-4439-991c-4bf2bef2aa7a.filesusr.com/ugd/77d535_3c371d5d6f49409fbdab858c51851216.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/dejazuvorira/37539579081.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/80483029886.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95c51422-8938-42e0-b718-48dc59c32dbd/how_to_use_ninja_foodi_pressure_cooker_air_fryer.pdfIn PDF document text
    • https://4cf6c2b4-cd84-4b73-83b1-bf7f441162b2.filesusr.com/ugd/e50c99_d788dacee3424eb5a342b6046370775d.pdf?index=trueIn PDF document text
    • https://77a48bbd-706a-45f8-a225-ac1cc02029d7.filesusr.com/ugd/3be48b_59df436994074bf893edad45f429f8d2.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tezude/12292237281.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3632b1c-a6b3-439d-8bb5-50e93d85b600/what_is_a_average_sat_score_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f54d9dec-d25f-45e7-be62-f0a1cf9f8b53/13993414449.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f253.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF253 5072 bytes
SHA-256: 044c60c284e6ead0b7f41a0c0b099f87beae1a2ab1123f56d3af8e007008d4d4
font_01_sfnt_off0001037d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1037D 11340 bytes
SHA-256: 22d92f09e0a2d05d65c42f0040e25ce97f30cc8d5547a8e32f0ef3a9bba3ccd2
font_02_sfnt_off00012a3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A3E 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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