Malicious PDF — malware analysis report

Static analysis result for SHA-256 a093e5bd3befb1f9…

MALICIOUS

PDF

123.9 KB Created: 2021-04-06 05:22:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: cb7916aabf7ae830fbcbfed14a9483d7 SHA-1: 3eda4b87fceab4bf0be04773610199674e612faf SHA-256: a093e5bd3befb1f92f050a790ff276a5338966dba9cfa8b57e3a16266b281375
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with a primary external URI pointing to a suspicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://soxebez.ru/123?utm_term=dragon+age+origins+leliana+approval+guide PDF link annotation
    • https://cdn.sqhk.co/gubujurit/ehgcYxo/27745617429.pdfIn PDF document text
    • https://megevoweroke.weebly.com/uploads/1/3/5/3/135351245/bipexirurarililodip.pdfIn PDF document text
    • http://bomepufibawil.scienceontheweb.net/kewitizajudefejo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369930/normal_5fcc23292f713.pdfIn PDF document text
    • http://lamaded.mywebcommunity.org/grigori_grabovoi_books.pdfIn PDF document text
    • http://pidagenavuziw.mywebcommunity.org/90589346934.pdfIn PDF document text
    • https://cdn.sqhk.co/murerezusa/QMQiifY/83682127205.pdfIn PDF document text
    • https://cdn.sqhk.co/vuxevabuvix/geLpSET/bifeduz.pdfIn PDF document text
    • http://gixipures.sportsontheweb.net/sugejidipugabaxufepewasi.pdfIn PDF document text
    • http://pejazadajenatew.getenjoyment.net/automobile_engine_repair.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391620/normal_60080262be02e.pdfIn PDF document text
    • http://suwufexez.sportsontheweb.net/consonant_cluster_word_list.pdfIn PDF document text
    • http://xovitixekewelom.scienceontheweb.net/string_theory_for_mathematicians.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455890/normal_6046944148646.pdfIn PDF document text
    • https://mupilikonibiz.weebly.com/uploads/1/3/0/7/130740066/bd9c62f75a0.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/56aa8e8c-cc32-4b6b-a932-8e5a7f6754ab/kepusopiroseguxoji.pdfIn PDF document text
    • http://wetukanezin.atwebpages.com/ccna_book_6th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c814cf47-9679-4687-b2a5-f62e60b8551f/xbox_360_controller_wont_power_on.pdfIn PDF document text
    • http://gipebevu.atwebpages.com/59191608659.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2cd3b2c-ca4d-46ce-a1eb-71abbcc61f3d/2003_ford_focus_tire_size.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d12b1e0-99f1-4940-b710-f1f238f06b2e/what_is_a_clarion_call_mean.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_off0001a9bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A9BB 5188 bytes
SHA-256: 4d0f1bb72b234e83d6f8e94c5d83906ff1fc84b12a81318f1a4053e78d98f572
font_01_sfnt_off0001bb7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BB7E 11424 bytes
SHA-256: 9dc5377e5576d2dee633148feb8c203884e9c4ad32daa12eb0c5d6d459421849

Open this report in the interactive analyzer, or submit your own file for analysis.