Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5fd0f7205f91e1a…

MALICIOUS

PDF

71.8 KB Created: 2021-03-01 01:08:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: e9467077f4dd7dd33e6685eab441b90f SHA-1: ff49ecf710e3e2b3ecaea45cc9e66fbfded5a8ac SHA-256: d5fd0f7205f91e1a196ef1ea000720dbea37d235560730dc6ff3af2037a28fc5
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV detection, indicating malicious intent. It contains numerous embedded URLs pointing to disposable hosting and link farms, suggesting it's part of a phishing or malware distribution campaign. The document's structure and embedded links are designed to redirect users to potentially harmful external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://botokaw.ru/wix?keyword=fluidmaster+400+model+anti+siphon+instructions PDF link annotation
    • https://nenejafaf.weebly.com/uploads/1/3/5/3/135393494/gajaxoma_xadifejew.pdfIn PDF document text
    • http://zugugalepew.mypressonline.com/xatileriledagudumapekif.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494893/normal_5fc7d0a07777e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461766/normal_6020b859dcc0d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490122/normal_601ba74492972.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413118/normal_5fe7cfc671eae.pdfIn PDF document text
    • https://cdn.sqhk.co/nubavojek/aIw5xgi/81435751211.pdfIn PDF document text
    • https://zudejafig.weebly.com/uploads/1/3/2/6/132681624/3302541.pdfIn PDF document text
    • https://cdn.sqhk.co/geroterunetu/jhgvhhS/world_bowls_atlantic_championships_2019_live_stream.pdfIn PDF document text
    • https://cdn.sqhk.co/sakupiraf/idH5ib3/modern_warfare_servers_down_beta.pdfIn PDF document text
    • http://vepekideku.iblogger.org/how_to_use_xfinity_wireless_cable_box.pdfIn PDF document text
    • https://kuvugelovusilu.weebly.com/uploads/1/3/4/4/134437140/948cc9f8.pdfIn PDF document text
    • https://cdn.sqhk.co/vagofedewat/cFheXWX/97760135217.pdfIn PDF document text
    • http://tufidifegoz.66ghz.com/66845404660.pdfIn PDF document text
    • https://lofokuvowuvi.weebly.com/uploads/1/3/4/3/134362742/9075237.pdfIn PDF document text
    • http://fuzubijixulux.mygamesonline.org/23321619874.pdfIn PDF document text
    • https://nebofubegifeso.weebly.com/uploads/1/3/1/4/131437549/e92dd142.pdfIn PDF document text
    • http://dikegebe.mygamesonline.org/36726445544.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://xiramubete.rf.gd/pasuwife.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ceec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEEC 5380 bytes
SHA-256: 6bc13dcd95490e437a21c91c5097d90f27939149c196d0afd0fb076556d0946b
font_01_sfnt_off0000e0fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0FE 10296 bytes
SHA-256: 1985c3569aa3a9df48dd4bc9fc3e999f1ff360d0347b50f6ae09a0b35b8e3555
font_02_sfnt_off000103c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103C7 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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