Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffc1fe612e6ff9f4…

MALICIOUS

PDF

172.0 KB Created: 2020-10-20 00:59:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 3ba34a96537f7844c0883dc4f8f582a9 SHA-1: 2dff3bafeb451a0f32dabc0e44c495c041850fc7 SHA-256: ffc1fe612e6ff9f43692052cfe66a24421df01eb99b3d3c187664c4a8c912862
134 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document contains a lure to download a file related to the 'Bhagavad gita in sanskrit with meaning pdf'. It embeds a malicious redirector URL, https://ttraff.link/123?keyword=bhagavad+gita+in+sanskrit+with+meaning+pdf, which is likely used to deliver a secondary payload or phish for credentials. The ML classifier strongly flagged this PDF as malicious, supporting the presence of malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://ttraff.link/123?keyword=bhagavad+gita+in+sanskrit+with+meaning+pdf In PDF document text
    • https://xonuvalax.weebly.com/uploads/1/3/1/4/131437330/tapar.pdfIn PDF document text
    • https://xalipifizipig.weebly.com/uploads/1/3/1/3/131379045/varuxavir_betux_fekaponinetase.pdfIn PDF document text
    • https://botubadixebom.weebly.com/uploads/1/3/1/4/131407995/luginovinib_latukobil_nimijuxijubijij_zavogixesuge.pdfIn PDF document text
    • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/nifit.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn 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/0357d010-5806-4607-b8da-a3b17157ae67/pabekivexarekakuna.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/890dbfb3-21f6-46cb-a096-8c4e76a86d30/tejofuwo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f00e3772-a284-4dd6-b634-97a5fbfaee62/vogerudotilikubafik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05d1adef-7647-478b-aa4b-97cef4eed1d5/juxusebibimofijer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/5736/4135/files/15760240056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/4919/4917/files/rural_and_urban_areas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8605/3527/files/96446678646.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0597/5462/files/fukisukupuzop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8be21477-c883-4bbc-85eb-9dfa9ff9155f/welexakuxosutijod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0a3dd17-9bee-4296-aa2c-7d1c8522396b/kujidanixibuzezoju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6803f16-3739-4f85-924c-ea9fc13a6495/67341960245.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57abedd3-40b2-48d3-a163-a8f1ba80e19a/71792071487.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ca27693-4c56-4950-b322-cb82e82448fd/zenexujobavut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74520991-5ce8-4165-89f0-0067a064ad6f/6992907827.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c66be084-2752-45c8-b665-39fee5120c65/5126884882.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46775cae-85d2-4fa0-aa15-34d5fc9a7f6b/29025112312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4376/4889/files/grand_rapids_broadcast_tv_schedule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/1353/7429/files/xilunukinakikokixena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/4093/9423/files/tarajudigapetijanujoxej.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_008_off00027aa4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x27AA4 12084 bytes
SHA-256: 02d303d1fbe7c69c9224ae85acf8dd5d1ea04dd050ed02d621edb6e0e93c3aa4
font_00_sfnt_off000233da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x233DA 5688 bytes
SHA-256: 269a10b02dede954e775a2b0f8e79f769f2d7d42b6626bfebd27e89751ec0df6
font_01_sfnt_off0002471d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2471D 3772 bytes
SHA-256: 9f9735dfffc8c011bc9e8ef237ff2436957f0c37a3f9eed5660ee2153b6c9474
font_02_sfnt_off000252c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x252C2 12488 bytes
SHA-256: b451e9c66c28f07526f2acd9b78ad839b7e874b3ac5f891406dacbc54ee6836e

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