Malicious PDF — malware analysis report

Static analysis result for SHA-256 709f8a9453f5087e…

MALICIOUS

PDF

133.9 KB Created: 2021-03-09 14:36:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 31713396f7c7e4a78bc7731318f41495 SHA-1: bf2c55ed487e360d44b6ff0c01bc264eb266753f SHA-256: 709f8a9453f5087e0e8f0e9997630dd6bc90daac078f37a221f547073f875f47
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with one specifically pointing to 'fokemale.ru', a domain flagged as suspicious. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the PDF is designed to host many links on disposable domains, suggesting a phishing or malware distribution scheme. While no scripts were explicitly extracted, the presence of external URIs and the link farm heuristic strongly suggest the document's purpose is to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9927

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://fokemale.ru/award?keyword=surat+yasin+dan+tahlil+arab+pdf PDF link annotation
    • https://darurirajilubi.weebly.com/uploads/1/3/4/3/134318819/93c7042938ca4.pdfIn PDF document text
    • http://my-favshop.online/dashboard_reporting_templates_excelckiqs.pdfIn PDF document text
    • https://vimavopama.weebly.com/uploads/1/3/4/7/134769365/kizudumejofenal-xewutebokuwujos-zulojaxenitivi.pdfIn PDF document text
    • http://ijmalan.xyz/diagnostic_assessment_in_education5hpux.pdfIn PDF document text
    • http://cardioactiveuficiale.site/dinedulepomodixidafhtzsx.pdfIn PDF document text
    • http://interbank.link/madden_mobile_hacks_iosfw1rb.pdfIn PDF document text
    • https://teligodinawam.weebly.com/uploads/1/3/4/4/134457670/2381556.pdfIn PDF document text
    • http://haustova.com/saxedigajepufapokabatawixh7d4.pdfIn PDF document text
    • http://eurofamily.pro/hp_designjet_500_driver_windows_10_64_bit3npze.pdfIn PDF document text
    • http://prostosite.site/cuanto_vale_un_milimetro_en_centimetroscootr.pdfIn PDF document text
    • http://testersairf.xyz/633792403913pv8g.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://737c154f-ca75-4484-807d-9d5c19d76377.filesusr.com/ugd/7e84b7_0b31ab5a2225493f82ed5be719d68b93.pdf?index=trueIn PDF document text
    • https://b54663a3-ff9d-4122-b75c-69b71428c9b0.filesusr.com/ugd/cfa91a_2335289c776b499fa00193f9e6dd6747.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/muxegeza/20209340153.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a945e54-3b1b-4405-8a29-aa3d9b142189/52005217037.pdfIn PDF document text
    • https://s3.amazonaws.com/kasuwevovog/lesson_plan_template_primary_school_uk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afc44c9c-d531-4102-a17e-990462f3b2de/ketogepivo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5593b107-3828-48fc-a7c0-249110dbcfb5/22258582449.pdfIn PDF document text
    • https://s3.amazonaws.com/zagubip/56718256005.pdfIn PDF document text
    • https://e20d271a-53e3-41f9-9180-d6cd5f9fd148.filesusr.com/ugd/6cfc61_38bc46f152f14e6a968a6b29e630e109.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/80f3e3f9-d8fa-4adf-9003-42a8e95f3d44/fuduvumo.pdfIn PDF document text
    • https://s3.amazonaws.com/gateme/warerixiganipejuvojefa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32e4d988-bdb4-4d3c-9c48-76424b2bb0b2/sozitewavutorura.pdfIn PDF document text
    • https://s3.amazonaws.com/nalifij/82351239395.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0001c604.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1C604 32620 bytes
SHA-256: 190ff6469464bbbfbd5e19defa599d7a90befa9f31d317d34c4317f7c8bb450b
font_00_sfnt_off000184ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x184EC 3104 bytes
SHA-256: 7935a9011d1ddf925e4c615f0d4c7ebc5c36e944a8283dfae3a9b58fd21d210d
font_01_sfnt_off00018ffd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18FFD 5476 bytes
SHA-256: 559f942901d020ebdd3df5b91f8cc2cc51651554e9589bbb1a51baefe070b95c
font_02_sfnt_off0001a292.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A292 10336 bytes
SHA-256: 3c0dd093a87790fe98afc886296b1f91544f62fa60e75f50f77dc3cf19f90f9b
font_04_sfnt_off0001ffb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1FFB9 2300 bytes
SHA-256: 992aacf76c65a5032a5fd30fe7c5a5b300bc7f1687e2d3fefc74faa70ede0608

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