Malicious PDF — malware analysis report

Static analysis result for SHA-256 f912abe9154eacce…

MALICIOUS

PDF

76.4 KB Created: 2021-04-10 09:41:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: e4d19c44bb36382919fc69544dd39266 SHA-1: 1ebb401e3ddca40671c6b52cca4b7e7f1675c05a SHA-256: f912abe9154eaccea1f3daf98659e0a3f6d9a593f5f1c97df1828d3b6c900397
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 0.9997

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://jumiwimov.ru/strik?utm_term=marques+de+sade+libros+gratis+pdf PDF link annotation
    • http://vujenixuwo.mypressonline.com/97708231824.pdfIn PDF document text
    • https://cdn.sqhk.co/kizofapekeku/Vx8ppWA/super_suit_gopro.pdfIn PDF document text
    • http://tikopariwoxa.mygamesonline.org/oxford_picture_dictionary_french.pdfIn PDF document text
    • https://cdn.sqhk.co/fejipotegevi/idyBVii/autonomous_vehicle_sensors_conference_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/kizulajeli/luNhjhf/13565962357.pdfIn PDF document text
    • http://nakozek.mypressonline.com/bontrager_node_1.1_for_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/tixuniwe/jcCghgf/nojamawavarejamapij.pdfIn PDF document text
    • https://cdn.sqhk.co/lutadamafe/gBhdjhv/20596766766.pdfIn PDF document text
    • http://somixewavado.sportsontheweb.net/how_to_program_overhead_door_remote.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/8657c1db-8e09-48dd-a15e-cc6fd5626a02/mental_toughness_meaning_in_urdu.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/25303342494.pdfIn PDF document text
    • https://s3.amazonaws.com/jivamubug/gunaxowaxat.pdfIn PDF document text
    • https://s3.amazonaws.com/nefunupu/84732503588.pdfIn PDF document text
    • https://s3.amazonaws.com/nijosinizo/using_project_planner_template_in_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/is_how_the_grinch_stole_christmas_on_netflix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ab33b30-229d-4184-9d5d-7329d87a6f0d/what_is_included_in_ministers_housing_allowance.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a067465a-0c74-4eb2-a560-5c4da8681ddf/dell_inspiron_2350_drivers.pdfIn PDF document text
    • http://tizexazebubo.atwebpages.com/8716296140.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/zujovusazexafokowix.pdfIn PDF document text
    • https://s3.amazonaws.com/kiremefegonar/84869288627.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_off0000e711.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE711 5480 bytes
SHA-256: cc139568a0ddf88be9ccc1cfb8f76bc323a2c1fb472d64e4ddf9649151759f4f
font_01_sfnt_off0000f9c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9C0 12896 bytes
SHA-256: c2420296da04f62e0d4c8d0bdbbf6d95c3d3c91c7cb68f9801cf0abff42771b0

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