Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee82bfa757fa6cfb…

MALICIOUS

PDF

76.7 KB Created: 2021-02-16 20:12:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 9ce65049ac72f96767ffc9ab06b8bfa6 SHA-1: 5c9e77b7c5c255813bd1f9a6d5c80854452ff1be SHA-256: ee82bfa757fa6cfbb1720ad3b33507c450b1c2924efaa3fc72087d8d888eb361
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan-like behavior. The document body, though heavily obfuscated, contains text related to a "Harry Potter illustrated 3 book set", likely a lure to disguise the embedded malicious links. The PDF contains a large number of external links, suggesting a link farm or redirection mechanism to host malicious content.

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 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.
  • 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://jottigo.ru/strik?utm_term=harry+potter+illustrated+3+book+set PDF link annotation
    • https://julavatevimire.weebly.com/uploads/1/3/4/6/134669339/poloribazejos.pdfIn PDF document text
    • https://niforobufuxir.weebly.com/uploads/1/3/4/5/134512868/kanimejajumowufedab.pdfIn PDF document text
    • http://fimunukowira.iblogger.org/bebigokofodis.pdfIn PDF document text
    • https://solugelefeko.weebly.com/uploads/1/3/0/7/130740562/sigegagumotivus_lomefawufome.pdfIn PDF document text
    • https://nudegono.weebly.com/uploads/1/3/4/6/134682657/xezepasaf_sogigo_bebiravo_seris.pdfIn PDF document text
    • https://pogiwubuwafax.weebly.com/uploads/1/3/0/7/130775808/garogo-kuforusiguramet-ritaz-gemudugisekimig.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421354/normal_5fe5c491cde16.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477164/normal_601f141b4e479.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
    • https://s3.amazonaws.com/miwolezedubujoz/83212638734.pdfIn PDF document text
    • http://somesituziki.epizy.com/zasugas.pdfIn PDF document text
    • http://fawipiro.rf.gd/kindergarten_class_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/lorugipopuxe/11153844218.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/40827209926.pdfIn PDF document text
    • https://s3.amazonaws.com/tixeligufokup/jodonarezetivugadusi.pdfIn PDF document text
    • https://s3.amazonaws.com/zijivevip/65496858506.pdfIn PDF document text
    • https://s3.amazonaws.com/vofadoloves/poxurufoxomoda.pdfIn PDF document text
    • http://gewuxofude.epizy.com/58900780416.pdfIn PDF document text
    • http://wepexivir.epizy.com/cfp_sdl_uk_buffettology_fund_fact_sheet.pdfIn PDF document text
    • http://wumumusonozukak.epizy.com/nabefowavetew.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_off0000dc19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC19 5160 bytes
SHA-256: f8fb6a49828ceed566fc2ee2cd6f68ba8809b2f68bd4d1d69e974ef896939bf9
font_01_sfnt_off0000edbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDBB 11884 bytes
SHA-256: 0c44a9df81d67a83b74a1b02525790ee9c68c8bccb624e471224772171caf96b
font_02_sfnt_off000114f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114F9 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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