Malicious PDF — malware analysis report

Static analysis result for SHA-256 e42b4fa654996aca…

MALICIOUS

PDF

74.6 KB Created: 2021-03-29 07:45:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: b21b39c8c8303e13dff2d4169e59132a SHA-1: 818e121f736b57a6f3b3ed57f6bbe1ca2ab7fa29 SHA-256: e42b4fa654996aca6beddcb9e55370aef079a9931ae7e563d49c4eb8bc8280ba
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 0.9992

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://nipisod.ru/strik?utm_term=jorge+cervantes+encyclopedia+pdf+free+download PDF link annotation
    • http://kirakexig.mypressonline.com/alimentacion_balanceada_minsa.pdfIn PDF document text
    • http://honey-love.ru/joyce_araby_short_storyfqc9q.pdfIn PDF document text
    • http://dodajavux.scienceontheweb.net/65806504991.pdfIn PDF document text
    • http://boforotaje.mywebcommunity.org/sigegirakik.pdfIn PDF document text
    • https://nixovutak.weebly.com/uploads/1/3/1/4/131406963/aa8c3151b6861d1.pdfIn PDF document text
    • http://womenit.space/tapomirafituwomusalumlcqo.pdfIn PDF document text
    • http://chambre.xyz/tulikunegolagijamaxudizovddhv.pdfIn PDF document text
    • http://lololoj.sportsontheweb.net/whirlpool_conquest_refrigerator_parts_diagram.pdfIn PDF document text
    • https://dufebekeromodi.weebly.com/uploads/1/3/0/7/130776386/775e90f46.pdfIn PDF document text
    • http://carinsusa.info/spectrum_math_workbook_grade_8_free92cvz.pdfIn PDF document text
    • https://sutomoloxoxe.weebly.com/uploads/1/3/5/9/135986515/018fb5f9ff.pdfIn PDF document text
    • http://biwedujurar.mywebcommunity.org/32859520430.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/mixanaz/liwazad.pdfIn PDF document text
    • https://s3.amazonaws.com/dorobukasawituw/bajrangi_dj_video_song_mp4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a052de5-b2af-49a7-9eb4-8326d19a4d5a/cuisinart_deluxe_digital_convection_toaster_oven_broiler_costco.pdfIn PDF document text
    • https://98771922-91e4-4673-aa0d-7794f4435593.filesusr.com/ugd/b6aaa0_a8f82df03207462da7ca58806e414351.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kavifunaruvi/70829818132.pdfIn PDF document text
    • https://s3.amazonaws.com/zufojadibi/84298145418.pdfIn PDF document text
    • https://b70645e9-42d7-44c6-80f2-f165c8819e8d.filesusr.com/ugd/3f1130_89a537df153b4fdebbd5d3d4adf1cb25.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/b575b927-c2ec-4bd5-a35e-62d37e961933/how_to_install_skyui_for_skyrim_special_edition_manually.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/728d9948-9d00-45f1-b697-8c569c16e2dc/nafugenese.pdfIn PDF document text
    • https://5c71d6b4-13b5-43a2-97a4-9a0eba4d0f4d.filesusr.com/ugd/0f1814_ef6de68cd54b497ca1c0302ed728df20.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sizadagazagaj/badawupifixiro.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_off0000e42e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE42E 5568 bytes
SHA-256: f36a6dc2813e13b983bc52eb8337ce0146a27e1566406b12b402351acc6ef8fa
font_01_sfnt_off0000f74e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF74E 10792 bytes
SHA-256: 912f524e4092971875b9e43550d4c9e7043a5bd54317bda44ed28fdbc2969197

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