Malicious PDF — malware analysis report

Static analysis result for SHA-256 117325feb765c8f0…

MALICIOUS

PDF

73.5 KB Created: 2021-03-30 03:33:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 279561c1c4e95aa8c5cbd7d7f25bd097 SHA-1: c1450d9bc0a2e9160f6f2d310bf43ac630f9f587 SHA-256: 117325feb765c8f08b4eb085c501fdb7d2fd0efa278541882e65c491abce6ce4
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file is identified as malicious by ClamAV and an ML classifier, indicating a phishing or trojan-like behavior. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to potentially malicious content. The embedded URLs and the document's structure point towards a phishing attempt or a mechanism to distribute further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 6

  • 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 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://soxebez.ru/aws?utm_term=universal+remote+control+codes+bose+solo+5 PDF link annotation
    • http://kowojolajamuv.getenjoyment.net/rudram_chamakam_telugu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369643/normal_60093de6311d9.pdfIn PDF document text
    • https://wuduzavuvavazi.weebly.com/uploads/1/3/4/6/134618101/xivutade.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392207/normal_605392aa8b7e6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472760/normal_5fd1261c6fe7a.pdfIn PDF document text
    • http://daludaja.getenjoyment.net/adverbial_phrases_of_frequency.pdfIn PDF document text
    • http://vimabanu.sportsontheweb.net/macbeth_quotes_analysis.pdfIn PDF document text
    • https://voloxamofe.weebly.com/uploads/1/3/0/8/130874475/6218716.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://8d67285a-e3c5-4820-bb1a-bb91ce1079a6.filesusr.com/ugd/d54300_29bdd801b6ce4cabb09a90072e07d306.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/7aabf385-0ad1-4870-959b-9e09f382dc00/hamilton_beach_toaster_oven_4_slice.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ec5a735-b72e-4c9e-8476-0ad121316967/40894666647.pdfIn PDF document text
    • https://a79c6309-487e-499f-a993-0ac454a400c8.filesusr.com/ugd/747acf_d1d9f4fe455b42f8b8a88a6b306f5e9f.pdf?index=trueIn PDF document text
    • http://gugevifuvonavir.epizy.com/74193934452.pdfIn PDF document text
    • https://f3dbd103-cf2f-44fc-b0ad-c9004dc38af2.filesusr.com/ugd/1f2646_5108587be8ca43e0a092ac90f3d4e98f.pdf?index=trueIn PDF document text
    • http://zelanokavekav.rf.gd/6.5_prc_144_berger_load_data.pdfIn PDF document text
    • https://3f735f5a-cd1c-4288-bd93-adeff6e084d9.filesusr.com/ugd/bcc0e4_cf180a9966204487a99428366cdbd4c3.pdf?index=trueIn PDF document text
    • https://bf130ee1-1463-4c69-9604-1b23772ced92.filesusr.com/ugd/b4609a_93939b3ea4024641b1f271fa6c16ee35.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_off0000e1a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1A9 5400 bytes
SHA-256: f9a90eb2e70a5e2bdd17143333a7a7d362b56bed4d2891be014beb3adc2c9e3c
font_01_sfnt_off0000f3f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3F6 10844 bytes
SHA-256: 16a8bf7b47762f7645fb1116a2b463097da564027ccc6a0e3ee353a6ae0469a4

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