Malicious PDF — malware analysis report

Static analysis result for SHA-256 6eef97acb510ff94…

MALICIOUS

PDF

76.6 KB Created: 2021-03-28 00:48:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 03b136911a2fe28bead2e7969956406b SHA-1: 66b73d539617a6e187bf00b7ae8b1f1f2c3ad63e SHA-256: 6eef97acb510ff942c121d355d7432786d0941c754b5c8a052f25aabe8d6ff56
126 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, with one specifically identified as an external URI pointing to a suspicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The document's structure and embedded links suggest it is designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://gimoguvi.ru/award?keyword=cricket+game+information+in+marathi+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4367648/normal_60419bfb658c2.pdfIn PDF document text
    • http://gokutep.22web.org/87601743588.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494139/normal_60082bc2dddbb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491686/normal_602f69c3cb09a.pdfIn PDF document text
    • http://merikasavotenum.iblogger.org/zejagorafononusaxeb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484834/normal_6025ecb5ad69b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://1bf92926-22d0-44a1-94fb-b51843c41cd5.filesusr.com/ugd/762c1a_e2e777a5514b4d7ab5a954164ddaaf27.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/b650e865-eb08-4761-9f63-08036b1641ac/14308288434.pdfIn PDF document text
    • http://tojozolatenizum.epizy.com/43898838780.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac335b45-0f88-4456-b531-3a74e34f3c8f/moultrie_a5_gen_2_troubleshooting.pdfIn PDF document text
    • https://d38713d8-f9e0-49bf-8e72-3f46774ce551.filesusr.com/ugd/b3faf5_626d088b710f4ae7a1bf562d7db80f5e.pdf?index=trueIn PDF document text
    • https://7fe1f042-206b-4735-a408-f56337efeeb4.filesusr.com/ugd/d34b51_4b51f98ac1d446859337cff878ecaaa9.pdf?index=trueIn PDF document text
    • http://nibinelageniwir.epizy.com/23287065540.pdfIn PDF document text
    • https://43fe4710-460a-4ad3-90dc-2dd795c51528.filesusr.com/ugd/a32c20_5bcf9b3a5e714896937b12ba419338cc.pdf?index=trueIn PDF document text
    • https://e6f9d1db-9bad-45ba-a188-0e8e378e8087.filesusr.com/ugd/99b222_31d18a2813cd40679565706bfa9c3c68.pdf?index=trueIn PDF document text
    • http://dekidad.epizy.com/dawivuvalekutipipifesero.pdfIn PDF document text
    • http://zalerifi.rf.gd/whats_the_most_popular_movies_on_netflix_right_now.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d64a1768-f93b-4cb1-bf15-b63045074292/coleman_roadtrip_grill_regulator_assembly.pdfIn PDF document text
    • https://ef5e9b3f-1a8e-4c79-9b60-34b8f8133c96.filesusr.com/ugd/18574e_3da7c01b2fc84478bd49dc2eecada0f8.pdf?index=trueIn PDF document text
    • http://tilixufevoj.epizy.com/porilufitabemekobi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca5cd906-e940-47e2-8256-481b24aaed30/rezurinida.pdfIn PDF document text
    • http://lijomoxanegug.rf.gd/cuanto_equivale_9_5_pies_en_metros.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_off0000ee90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE90 5328 bytes
SHA-256: 543ee9946b8fdf72b00c0eb9170280e2a644beb2e75154667b8bd6e7513b045d
font_01_sfnt_off0001008b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1008B 10740 bytes
SHA-256: ed20b62fd7a685d75bb8512bbdd45795b6d5da9d0f8918b14123f3a49616af7c

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