Malicious PDF — malware analysis report

Static analysis result for SHA-256 6de8a0149263cb30…

MALICIOUS

PDF

83.3 KB Created: 2021-03-26 09:27:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 298cd53489c12dd5ea04c0a451ae24ea SHA-1: 7df7e82f9dc56d994b17306b25445279d0c4b1cd SHA-256: 6de8a0149263cb30ae9b06840b676de0b816850b628c7e3ab02474b6a17aa6e3
126 Risk Score

Malware Insights

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

The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier with high confidence. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM indicates the document contains a large number of links pointing to 18 distinct hosts, with many on disposable domains, suggesting a link farm or phishing lure. While no scripts were explicitly extracted, the presence of embedded URLs and the overall detection suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 http://magic-spring.com/5889730115j3ovm.pdf In PDF document text
    • http://itslm.fun/69444621206sqelh.pdfIn PDF document text
    • http://inglassrus.ru/vakafamodokugugujuvemije3aosq.pdfIn PDF document text
    • http://pravagims.net/252037202346mg5j.pdfIn PDF document text
    • http://triple-doska3.club/zanizafogodijeklffw8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://feedproxy.google.com/~r/wb/ENAH/~3/dN4lCoxrs6M/wb?keyword=when%20a%20relationship%20feels%20wrongPDF link annotation
    • http://womuxiz.epizy.com/cuidados_de_enfermeria_en_la_administracion_de_medicamentos_via_rectal.pdfIn PDF document text
    • https://0700b94c-2df6-41bc-911b-f1bdf4758ff7.filesusr.com/ugd/9c43ec_c27a7e8212064ca999a4532f67c0a162.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/312dcc3b-ce43-473a-be06-ddd8a5edf29e/sri_rudram_laghunyasam_benefits.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/014e97df-a2f5-46cb-9984-5200b2df1ac8/72962890858.pdfIn PDF document text
    • https://s3.amazonaws.com/desenaz/vsphere_6._5_export_ova_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jejulurowev/aashiq_banaya_aapne_song_2005.pdfIn PDF document text
    • http://gepopimasirepav.rf.gd/mf_35_starter_switch.pdfIn PDF document text
    • https://2ffa788b-df2f-461f-b9c5-573bec542745.filesusr.com/ugd/374ce0_e4b95cc841c947258113b9280f7b14ba.pdf?index=trueIn PDF document text
    • https://b5d51143-f34a-4a4f-9265-6917490cb775.filesusr.com/ugd/9f69bd_4867e6da8af643048ca503d5808f20f6.pdf?index=trueIn PDF document text
    • https://ca6b24e6-01cd-4368-a310-1df05077a315.filesusr.com/ugd/11b39a_1840d36360504f088631ef5bd295cf56.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/pexodugosa/asteroids_fun_facts_and_information_about_asteroids.pdfIn PDF document text
    • http://gonegexunu.myartsonline.com/program_tahunan_biologi_sma_kurikulum_2020.pdfIn PDF document text
    • http://supuwevul.atwebpages.com/a_field_guide_to_american_houses_2nd_edition.pdfIn PDF document text
    • http://mufasiloxinak.epizy.com/ubqari_magazine_march_2019_free.pdfIn PDF document text
    • http://lijazujarakowom.epizy.com/formation_bibliothcaire__distance_belgique.pdfIn PDF document text
    • https://f2fffe36-c7b4-4b88-9608-518dc6c14750.filesusr.com/ugd/950b2a_f6fff00ba6cc4cb68d05767dfc8385bf.pdf?index=trueIn 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_off00010928.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10928 5268 bytes
SHA-256: 44e8dd4d421b3112893694a152143ab764a38bbe03aa99e2043733e4186ba002
font_01_sfnt_off00011b2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B2C 11020 bytes
SHA-256: b64bd89a7ff97857992146daaff64e6e427bb1a74d8f9167f6ac2d560edc2f54

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