Malicious PDF — malware analysis report

Static analysis result for SHA-256 8240bf7bddf783ad…

MALICIOUS

PDF

69.6 KB Created: 2021-03-08 08:00:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 53114f800516a769287bc18527239e67 SHA-1: d3c31bb2eb61e2e4c15e63789be6791833a828f2 SHA-256: 8240bf7bddf783ad7813050273bdb241c09dcca7e8487606e622ecb6b5e62697
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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 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://ponafet.ru/award?keyword=minecraft+guide+to+enchantments+and+potions+pdf+free+download PDF link annotation
    • http://yognat.space/10851663388cm2fh.pdfIn PDF document text
    • https://mabobuloxulekev.weebly.com/uploads/1/3/4/6/134692970/roloxexafasaw-bidizuverexijin-fezeganemov-nugopogarip.pdfIn PDF document text
    • https://vukojudal.weebly.com/uploads/1/3/5/3/135317211/nodejogilun.pdfIn PDF document text
    • https://ziwegakesamud.weebly.com/uploads/1/3/4/4/134468237/fabogivigapug_fuzizek.pdfIn PDF document text
    • https://zujetopefij.weebly.com/uploads/1/3/4/7/134766602/kazut.pdfIn PDF document text
    • https://tabekemaw.weebly.com/uploads/1/3/0/8/130874329/9da4b2748a9114.pdfIn PDF document text
    • https://sazulolako.weebly.com/uploads/1/3/1/4/131453808/wowebuxevetof_bekakemuzim_funimulusef_jexabesazo.pdfIn PDF document text
    • http://just-gopro.com/92843562792ge1vz.pdfIn PDF document text
    • https://padubutidosose.weebly.com/uploads/1/3/3/9/133997835/noxamude.pdfIn PDF document text
    • http://shoppingyxplus.xyz/306773878500jm7l.pdfIn PDF document text
    • https://worizura.weebly.com/uploads/1/3/1/4/131437573/kevesapalerupixokutu.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/90c58b14-efc5-469c-a64a-450468b5c447/76109330561.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e19c6aad-5571-489e-98d7-bef5417c857f/what_are_the_first_5_books_of_the_new_testament_called.pdfIn PDF document text
    • https://s3.amazonaws.com/wonumafubij/what_is_meant_by_deal_flow.pdfIn PDF document text
    • https://s3.amazonaws.com/nalifij/1241156920.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30208750-c73d-4a54-87e9-5ca08d152476/kinutuvuxesabiwijebit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b696c7f-2b2b-4167-831f-d5b4688bd4ab/how_to_crochet_a_granny_square_step_by_step.pdfIn PDF document text
    • https://s3.amazonaws.com/xelimewat/how_many_calories_are_in_a_bean_taco.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af018721-f2c8-4b6a-ba60-f49fcbbfe15d/how_to_calculate_isentropic_efficiency_of_a_turbine.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f1d529b-0587-4a85-85e5-4de9edb8b0ff/pcir_reproducible_answer_key_world_history_shorts_2.pdfIn PDF document text
    • https://s3.amazonaws.com/ronenitevodo/81603252982.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5244254f-0da8-4206-b4e6-0f659d27d956/9266250432.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_off0000d32a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD32A 5668 bytes
SHA-256: bbaa2b1e5e54413e7bd16895ad5b2b1404bf1826cfd4832587db5e4338eecd25
font_01_sfnt_off0000e663.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE663 9924 bytes
SHA-256: ae6c679bdd354d3c90686b0220b542565f9cc2b42fbb4cf615506d17add07bbd

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