Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbc601e33585fcb6…

MALICIOUS

PDF

80.2 KB Created: 2021-03-05 04:29:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 7d02b9d142eb01bd7ddaf0366ede48e6 SHA-1: b192470ac89a98317078f7f51d8c24a074a1d221 SHA-256: cbc601e33585fcb6beff788d08084a800ea648c171b8bad45f2f53e58600a8f3
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL, disguised with a seemingly innocuous query, likely leads to a phishing or malware distribution site. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to trick the user into visiting a malicious external resource.

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://gimoguvi.ru/123?utm_term=best+night+spots+in+atlanta PDF link annotation
    • http://pefiworawodud.mypressonline.com/namapo.pdfIn PDF document text
    • http://tokepubex.getenjoyment.net/5748369762.pdfIn PDF document text
    • http://keruvimuvom.22web.org/gangsta_s_paradise_soundtrack.pdfIn PDF document text
    • http://mirijesuwakug.sportsontheweb.net/is_per_capita_income_gross_or_net.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/xajowu/58389287874.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4269c34a-ad03-4bc2-abac-2d8a87c17b30/71530155630.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e1734ef-9ce2-4a5a-9ca0-2557702114e8/presto_cool_touch_electric_griddle_07030_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/gudukupir/solidivixuw.pdfIn PDF document text
    • https://s3.amazonaws.com/domegagowevag/26172134562.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/belt_conveyors_for_bulk_materials.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/83808575727.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eeabc8c8-9a5f-4964-b5aa-698499f3c228/79991568392.pdfIn PDF document text
    • http://bumojomoso.rf.gd/31092606018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ca6e305-c0f6-4eeb-95f9-b9287a24c6df/87655571506.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49c370a8-a0dc-473a-a82e-0e041c2ef925/jovepavozikiforabivosuxid.pdfIn PDF document text
    • http://xuvekixofeku.onlinewebshop.net/63002024546.pdfIn PDF document text
    • http://mopuminamopox.epizy.com/31888396249.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be43962e-d4f6-483b-be5a-9f4e50d1f532/rowoxevena.pdfIn PDF document text
    • https://s3.amazonaws.com/lososimap/adjective_form_of_word_earth.pdfIn PDF document text
    • https://s3.amazonaws.com/sepawi/sevazepux.pdfIn PDF document text
    • http://pudolajuji.atwebpages.com/transition_words_to_state_evidence.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6965805-56f3-4440-ad8d-686419424d8f/heatmate_kerosene_heater_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/dowesitobuga/43104198182.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_off0000fd94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD94 5036 bytes
SHA-256: ace2f60176e8851733dee5da60f0b28a0798fa313a48d5ba68b15089dcefaa0b
font_01_sfnt_off00010ebb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EBB 10968 bytes
SHA-256: d0c443c43c123846c7972a57e7818b02778d84ca010adc56817ca131bb953666

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