Malicious PDF — malware analysis report

Static analysis result for SHA-256 da60e87f0fac3894…

MALICIOUS

PDF

78.0 KB Created: 2021-03-17 04:31:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: f220faf92000dc62b16e26cffa2e166c SHA-1: a9ab98eefd0e7a8c358d23cc43f2aec13c9bfd5b SHA-256: da60e87f0fac38941e271424ef23aaa76256fb6367e75943fc60bb9641294520
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, many of which point to disposable hosting and are associated with link farms, indicating a phishing or malicious redirection attempt. The ClamAV detection and ML classifier strongly suggest malicious intent, likely to direct users to phishing sites or download further malware. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a phishing lure.

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://ponafet.ru/123?utm_term=cps+report+online+louisiana PDF link annotation
    • http://walolexokesufa.sportsontheweb.net/the_hunger_games_2014_full_movie_download_in_hindi_filmyzilla.pdfIn PDF document text
    • http://jadogaxarabu.mygamesonline.org/ropitufutegibasupuwijikaz.pdfIn PDF document text
    • http://xofitazuregokud.mywebcommunity.org/pojit.pdfIn PDF document text
    • http://nibajafij.medianewsonline.com/dell_latitude_e6430_refurbished_review.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380382/normal_5ffd4b057dde8.pdfIn PDF document text
    • http://jozipuvuwuzaj.mywebcommunity.org/what_was_the_march_1917_revolution_about.pdfIn PDF document text
    • http://vizilirudigub.getenjoyment.net/12979138934.pdfIn PDF document text
    • http://mesikigodijope.mypressonline.com/42271618521.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462065/normal_5fe2f014db88a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://a2fe464c-28d1-4db8-bb2d-552ad9bc2f4d.filesusr.com/ugd/941bb1_cae3cb06c57f4832a236b6545e0255df.pdf?index=trueIn PDF document text
    • https://ba428ff1-d53d-4eb5-bdb2-cc960067f420.filesusr.com/ugd/7041e4_c9c79ca4b4bb462ba78f02a07e5e77fb.pdf?index=trueIn PDF document text
    • http://bototiluwoge.atwebpages.com/zonorajisefawa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f8df1ca-ee87-4314-9333-0b3222ca9e2e/what_is_global_news_flow.pdfIn PDF document text
    • http://rodisasedozax.myartsonline.com/41018574769.pdfIn PDF document text
    • https://e028ba52-6c86-493e-86b7-fecf7cd1c3eb.filesusr.com/ugd/bcb9fd_f3648f27b18c40338343d977eae8c8af.pdf?index=trueIn PDF document text
    • https://144c9d4d-401b-437b-b89f-6a5816d7da47.filesusr.com/ugd/cd33f5_61d8ad2e17cb4d91874a98914bcbf9c1.pdf?index=trueIn PDF document text
    • https://e20d271a-53e3-41f9-9180-d6cd5f9fd148.filesusr.com/ugd/6cfc61_8a62f5f649c84a6281c6beeb4aedf335.pdf?index=trueIn PDF document text
    • https://afa032df-bfad-47da-a9c8-c79260182993.filesusr.com/ugd/6f9b04_ef61f36b5cc04ce28abb7ec1bd33cfee.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/0be5e191-5eef-41fe-b877-5296e202aeb4/arabian_nights_movie_1999.pdfIn PDF document text
    • https://a819be37-316e-4347-83bc-b067fb6953c8.filesusr.com/ugd/d5662a_68e7719d3ac349d4909029b9a24b9c52.pdf?index=trueIn PDF document text
    • http://zilowovuv.atwebpages.com/kozuv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eac0697c-20da-4f3d-8f69-2a057fc0de04/vitamix_e320_explorian_blender_accessories.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_off0000f4c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4C7 4720 bytes
SHA-256: 4c3decf444b8ed468f0a5a27150ca2536b5ae815ed51841d6da4f833c8caad6c
font_01_sfnt_off000104d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104D7 11068 bytes
SHA-256: 2b23975f31576dc365699fdb9521abc258117fe6525e06a1f7bd31917b1e2851

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