Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9e6f1687af8af2e…

MALICIOUS

PDF

149.3 KB Created: 2021-03-19 17:47:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f9c3378b6693e3e7db265302cfe8bae SHA-1: d92a23423f5e4ec670eefc7ba372c0dd2ab0b241 SHA-256: d9e6f1687af8af2e6d0789804de85eb20ed2728ddae1c562ba2b44cbda1b6173
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to 'https://lozipotod.ru/wix?keyword=nesc+c2-2012+pdf', which is a strong indicator of a phishing or malware distribution attempt. The PDF structure also shows signs of manipulation with duplicate object bodies, further supporting malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://lozipotod.ru/wix?keyword=nesc+c2-2012+pdf
    • http://zonojebiridizo.mywebcommunity.org/athlean_x_meal_plan_free_download.pdf
    • http://xilenemivagola.mywebcommunity.org/21297622532.pdf
    • http://idealslimitalia-ufficiale.site/android_material_design_splash_screen_exampleowbbj.pdf
    • http://salet.store/19774682622f8vsb.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/6ded0a2c-d3f7-4ece-85e1-fd9b9d6a38cc/82283991884.pdf
    • https://s3.amazonaws.com/dosipive/79859167699.pdf
    • https://s3.amazonaws.com/mikibetiv/59304927341.pdf
    • https://s3.amazonaws.com/kewakuko/tonir.pdf
    • https://uploads.strikinglycdn.com/files/c3fdb6f7-bd49-4ae5-a846-04fc069814f8/sony_playstation_remote_control_instructions.pdf
    • https://s3.amazonaws.com/zufaxepixiguxax/byomkesh_o_agniban_full_movie_720p.pdf
    • https://a1359116-1358-4cde-afc5-3600b4bb50db.filesusr.com/ugd/3b0c81_275f10136f6a49d2b8e247b53fb36ce9.pdf?index=true
    • https://6200e599-3f2f-4e3e-ab45-e6977ed7e777.filesusr.com/ugd/f8de3e_5d928342171b493d92ca51c04739bba9.pdf?index=true
    • https://s3.amazonaws.com/vexosafugunu/99808049678.pdf
    • https://uploads.strikinglycdn.com/files/6e8fa745-9a41-4f65-9f1f-ff9bd33d906e/kitchenaid_stove_models.pdf
    • https://s3.amazonaws.com/xakapudakadu/4d_printing_seminar_report.pdf
    • http://napamewa.atwebpages.com/52305262887.pdf
    • https://uploads.strikinglycdn.com/files/ae4b19ab-94ba-442f-b822-e62c9ccf0226/el_hobbit_3_pelicula_completa_en_espaol_latino_descargar_mega.pdf
    • https://uploads.strikinglycdn.com/files/b0b26a36-3b42-401e-8286-bfc95dd7e20c/critics_of_differential_association_theory_charge_that_it_tends_to_ignore.pdf
    • https://s3.amazonaws.com/xefezesebusu/why_is_blizzard_so_slow.pdf
    • https://s3.amazonaws.com/zoromexemuzid/10327625468.pdf
    • https://s3.amazonaws.com/fatikonavori/burying_the_ex_free_movie.pdf
    • http://padegijogul.atwebpages.com/89776148604.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00020dab.bin
ef9c9687c17d884c04f069a5dcd45083d071f253ecb36f9dbe117e191703d91a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x20DAB 5136 bytes
font_01_sfnt_off00021f5f.bin
5504f9d67879e2cb657dd1d891c63cd9006d5f1f97fa99b45720ab3fbcf488bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x21F5F 11932 bytes

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