Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ef0dd8bd0d8fc9b…

MALICIOUS

PDF

83.2 KB Created: 2021-04-07 19:26:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 5b3b80bd885a15d72fc7fe33f8c4449a SHA-1: 739ebeae0885448781d1c780406a84ad4667fa87 SHA-256: 4ef0dd8bd0d8fc9b0c646832bf546eb787f30ea226725d85f41684621456044d
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 0.9991

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://midufefew.ru/strik?utm_term=a+court+of+thorns+and+roses+azriel+quotes PDF link annotation
    • http://vomamafawib.scienceontheweb.net/48020808819.pdfIn PDF document text
    • http://rowomonug.mywebcommunity.org/48331927372.pdfIn PDF document text
    • http://gumidaz.medianewsonline.com/71220919107.pdfIn PDF document text
    • http://xenalebosob.scienceontheweb.net/laminar_flow_and_turbulent_flow.pdfIn PDF document text
    • http://zedakobogesa.mypressonline.com/1767863621.pdfIn PDF document text
    • http://napodosawukezob.getenjoyment.net/64421202456.pdfIn PDF document text
    • http://mikazuxo.mypressonline.com/manual_de_calderas_acuotubulares.pdfIn PDF document text
    • http://lazujifoxupa.getenjoyment.net/48799790408.pdfIn PDF document text
    • http://kokolonesafu.getenjoyment.net/what_is_a_dream-vision_poem.pdfIn PDF document text
    • http://dipazekonowa.mypressonline.com/convert_to_word_large_file_online.pdfIn PDF document text
    • http://dekiweragaf.mywebcommunity.org/duality_of_light.pdfIn PDF document text
    • http://medemukiduba.sportsontheweb.net/lasesufeweweroxevumozet.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/vavale/capture_screenshot_lite_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/180202ae-7064-42e4-bd8e-c4171dcc1bf5/47293802138.pdfIn PDF document text
    • http://sodowurivav.onlinewebshop.net/kejitifufezitivago.pdfIn PDF document text
    • https://s3.amazonaws.com/wonumafubij/97483516755.pdfIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/yankeetown_florida_fishing_guides.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0186124e-7a88-4bd8-b112-0d8e9e770750/wisinakenubolewukipavuw.pdfIn PDF document text
    • https://s3.amazonaws.com/limepusotanal/football_manager_handheld_2015_best_tactics.pdfIn PDF document text
    • http://sanojepenot.onlinewebshop.net/play_boogie_woogie_piano.pdfIn PDF document text
    • http://wipadafefuxasi.onlinewebshop.net/91170754922.pdfIn PDF document text
    • https://s3.amazonaws.com/zuniverijesud/ridimoguj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9bea2ce2-52fd-4355-8e52-2ac9162e3232/11128004884.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC14 5276 bytes
SHA-256: ef4aa783e84aa625f10c33fa67bf76cd7f2381f5311e7ee2de6e05db8c6b4707
font_01_sfnt_off00010dfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DFB 1884 bytes
SHA-256: b45c62d5613ddef6e7e0f70851ad0cdbca2410a55d14d40e71b7f596dccccee6
font_02_sfnt_off0001171d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1171D 11024 bytes
SHA-256: b5475c37f8ff7f5c38f4351fb31182d9e671d0d7e2df435592319f504e38c423

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