Malicious PDF — malware analysis report

Static analysis result for SHA-256 dabe7c952f3e966a…

MALICIOUS

PDF

84.8 KB Created: 2021-03-11 00:59:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: eb79fe2ede74f0ce72868087386b811a SHA-1: e05abddc2854bf5705ea1b899eb7acfb31384a74 SHA-256: dabe7c952f3e966aa2faa5403f4501c75445e6cbcafc787abd638795d480a21c
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by multiple heuristics as a link farm, containing a large number of external URLs. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution through the linked sites. The document's primary function appears to be directing users to a network of external resources, potentially for SEO manipulation or to host malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://druttle.ru/award?keyword=codominancia+y+alelos+multiples+pdf PDF link annotation
    • http://lowabunuzoxa.getenjoyment.net/kolukapurif.pdfIn PDF document text
    • https://posesisex.weebly.com/uploads/1/3/5/3/135332701/fojixowuxulagok.pdfIn PDF document text
    • http://wide-take.top/bezetofovzev8z.pdfIn PDF document text
    • https://giminefimir.weebly.com/uploads/1/3/0/9/130969553/poruvelojanizeb.pdfIn PDF document text
    • http://cmb-accueil.com/80934505102l46fz.pdfIn PDF document text
    • http://smartbright.club/557461362815ez4m.pdfIn PDF document text
    • http://ideal-it.fun/26739805462rv9z1.pdfIn PDF document text
    • http://swast-group.website/how_much_do_annie_and_david_get_paid_on_90_day_fiancegdtjf.pdfIn PDF document text
    • https://fomunova.weebly.com/uploads/1/3/4/6/134684458/mofowoxukuz.pdfIn PDF document text
    • http://hs-life.ru/82279965561xfjcf.pdfIn PDF document text
    • http://sneakerspapa.store/canon_powershot_sx20is_lenses2879w.pdfIn PDF document text
    • https://mejodedasebedo.weebly.com/uploads/1/3/4/7/134725949/2390324.pdfIn PDF document text
    • http://nout-sale.site/basketball_stars_game_unblockedkq9od.pdfIn PDF document text
    • https://lumosezuto.weebly.com/uploads/1/3/4/4/134499790/65af72.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/ba65c6b2-7725-4adc-b1a8-2edcc14c3d10/grupo_lmite_yo_sin_tu_amor_letra.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b9d7259-a11f-4f8e-8301-cb57007d2332/86326465554.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/790d8f76-9434-4369-b5b5-dbb243cd7fe7/25259507239.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bbfea18b-b546-40c7-ac0a-0409d3420ab4/daduzogusexibavor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e262c9d-669f-417f-b724-94f9782362ef/revilukowuborebo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/700c2071-bfe1-4be7-89db-5c82079027b5/how_to_setup_echo_show_2nd_generation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f07c719-331c-41db-a616-f5f5b6576c79/kipubumuweja.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/307f3d8f-24e4-484e-9d6f-45f9ce2da6da/swann_security_camera_reviews_2019.pdfIn PDF document text
    • http://voturugivorajop.onlinewebshop.net/70410388258.pdfIn PDF document text
    • http://vilepobafomunow.atwebpages.com/watsons_go_to_birmingham_character_activities.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_off00010f05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F05 5212 bytes
SHA-256: e79b33e3fd9b54248a43b39be3c6209278a03e58836e907815844c33acdfa03e
font_01_sfnt_off000120b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120B7 10824 bytes
SHA-256: b0c2395906bb0b44a1246eec4f537417f9ff6e48830fa7b06cf105bc0deada72