Malicious PDF — malware analysis report

Static analysis result for SHA-256 eebe89c106fd7d9b…

MALICIOUS

PDF

69.9 KB Created: 2021-03-01 01:23:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1f6b4c3f14b492036168d36dae81659c SHA-1: 8b4e0c6fcaa95cef8bb3fc92a8bd36f722165fe2 SHA-256: eebe89c106fd7d9b223f3f7b935827b3cad93aa594137ff8893877287f32c31f
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://jacksth.ru/wix?keyword=north+american+biomes+coloring+worksheet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4491669/normal_5fd2708ea059a.pdfIn PDF document text
    • https://cdn.sqhk.co/niwuruba/Mjfibhf/run_fast_run_far_quote.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411493/normal_5fcebdf079b87.pdfIn PDF document text
    • https://kojepogezoxuta.weebly.com/uploads/1/3/4/4/134487575/c0f40.pdfIn PDF document text
    • https://cdn.sqhk.co/pabilere/eidpgu8/easy_mobile_recharge.pdfIn PDF document text
    • http://tulomodev.getenjoyment.net/how_to_reset_tracfone_pin_number.pdfIn PDF document text
    • https://lasomuvexovip.weebly.com/uploads/1/3/0/8/130813571/legipexadapif-nugisadivi-xuwisapakijud.pdfIn PDF document text
    • https://cdn.sqhk.co/kulobibab/cmAieMM/babesowesuraseduz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450039/normal_601bae23bc51f.pdfIn PDF document text
    • http://kimokabif.medianewsonline.com/add_cd_player_to_bose_radio.pdfIn PDF document text
    • https://nupepapuk.weebly.com/uploads/1/3/1/4/131484133/pemevewasowemusuwis.pdfIn PDF document text
    • https://tezadogiva.weebly.com/uploads/1/3/4/5/134522012/vibut.pdfIn PDF document text
    • https://fiwaluveniwob.weebly.com/uploads/1/3/5/3/135395264/penetewo_tuzam_wokogodanu_tafopekeburafa.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/povelenavuviw/nautical_baby_shower_invitations_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/kiguteperilodu/18431890589.pdfIn PDF document text
    • https://s3.amazonaws.com/kodipopujufipig/alan_parker_faded.pdfIn PDF document text
    • https://s3.amazonaws.com/kudowo/healthcare_business_analyst_job_description.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_off0000d4f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4F6 5476 bytes
SHA-256: 081853aed917f66e5f5e4133e7b0a41f6da76e9e73c576ec97722b45cbfc6e21
font_01_sfnt_off0000e784.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE784 10212 bytes
SHA-256: ff438cc92c69b14f8a8ae81cfe0fc4669edd06e251883b6d1577b75d7b8fbf8e