Malicious PDF — malware analysis report

Static analysis result for SHA-256 7aabfc799ca486af…

MALICIOUS

PDF

79.8 KB Created: 2021-04-11 21:19:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9be742d83a323cfdd5a1bd310197d5f8 SHA-1: 70023246ceb7635558ed874654736ca086847944 SHA-256: 7aabfc799ca486afcb0a03c187fcf2d7199c7f18543b88d6e902ba40f3401590
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 0.9996

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://lozipotod.ru/strik?utm_term=gigabyte+gtx+970+windforce+3x+overclock PDF link annotation
    • https://cdn.sqhk.co/vawapisoxe/dijrBjb/apex_programming_for_beginners.pdfIn PDF document text
    • http://kafalukuwemi.mygamesonline.org/56800740470.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449996/normal_601b2e3ebb96f.pdfIn PDF document text
    • https://cdn.sqhk.co/makafabakuna/eVjhhhF/wozolozinoxamad.pdfIn PDF document text
    • https://cdn.sqhk.co/pifonode/je1ghjd/photo_colour_changer_app_download.pdfIn PDF document text
    • https://cdn.sqhk.co/sezunofubuzi/igbvXje/moto_actions_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413585/normal_6069742f8cbaa.pdfIn PDF document text
    • http://zesegalos.scienceontheweb.net/sindrome_anemico_oms.pdfIn PDF document text
    • https://cdn.sqhk.co/sifomujotaxa/jeigKL9/offroad_jeep_driving_3d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422658/normal_5ff7d51f6813c.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://uploads.strikinglycdn.com/files/1e9b118c-3b7a-4cd4-981c-3556f746efbd/68956896275.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/688f1f97-fac9-41f8-b960-8310a856059e/guragej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f595e13-f633-4714-b5b8-ebf8e2e4b368/how_do_you_know_if_you_have_a_sinkhole_in_your_yard.pdfIn PDF document text
    • http://dapizodipe.myartsonline.com/whirlpool_duet_sport_washer_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/347b056c-7fc2-4bd5-9bd5-c85f7e974696/what_is_critical_thinking_questions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2656df22-f07e-4aa6-92af-11faa6fe321b/nurulepalapetarusajexujud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a49c4af-3390-4942-b03d-8afd919f85a4/sibagakoloxabogobetomago.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dea1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEA1 2960 bytes
SHA-256: 3a99bfcc8a6322cb1f5d9dd0c76c95525b0630114fc12c53a342d41e6b6e0e01
font_01_sfnt_off0000e911.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE911 5896 bytes
SHA-256: e3d4ad6e6759494922dbefb1203b52c6fc1b3bc1cd1cd667ac542a339d9e03be
font_02_sfnt_off0000fd5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD5B 11072 bytes
SHA-256: 194b25c64dc1372cb511bbe3d5ae8c2f589772317079760907ed91ce3d044e9d
font_03_sfnt_off0001234b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1234B 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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