Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce04227c200963f3…

MALICIOUS

PDF

74.6 KB Created: 2021-03-22 23:01:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 00e87b3dc3f0ccef678413346e9927e5 SHA-1: ded36ffc3d21c186c10c9f6ed5aee7451a736dd8 SHA-256: ce04227c200963f30b430de856bd6e0c0c6a9597097efb23b8c752e83b0e4702
164 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a mass external link farm, with one prominent URL pointing to a PDF file. The document body, though heavily obfuscated, suggests a lure related to a 'dashboard template'. The presence of numerous external links and the phishing/trojan detection strongly indicate an attempt to redirect the user to a malicious resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://pelibifir.ru/123?utm_term=bootstrap+3.+3.+7+dashboard+template PDF link annotation
    • http://app-3null.com/sixelibakepubomebukemkbj66.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457876/normal_601e2fa17af04.pdfIn PDF document text
    • https://cdn.sqhk.co/natokaze/chajx0Z/smart_charging_case_iphone_7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413243/normal_6008e9f84e741.pdfIn PDF document text
    • https://cdn.sqhk.co/sixaxetexaxe/jgbjhqn/31809071774.pdfIn PDF document text
    • http://1xbet-registrat.site/chhota_bheem_mayanagri_full_movie_hdmxtb1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366027/normal_6025ea508cd64.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384480/normal_5fde392c7222d.pdfIn PDF document text
    • http://euroshopmn.space/58540231813q757w.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://6bfd3344-23d3-4e03-ab7d-00c1c23eecf6.filesusr.com/ugd/be19e1_25870090c295453db33629716f1406ec.pdf?index=trueIn PDF document text
    • https://7404da97-7fcf-4d5f-9d5f-3f8644e6773a.filesusr.com/ugd/35f767_972d39fc6702458f8951ebc26a0a386b.pdf?index=trueIn PDF document text
    • https://8d275f60-8e36-4e70-8574-b6d542a617c4.filesusr.com/ugd/dbf6c2_55e1633c7d4949bfbab2614d516fd7a3.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lezerawe/what_is_the_theme_of_the_queen_mab_speech.pdfIn PDF document text
    • https://s3.amazonaws.com/sefipa/cisco_dpc3825_username_and_password.pdfIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/vovirokidimur.pdfIn PDF document text
    • https://s3.amazonaws.com/mojivikapeti/dometic_brisk_air_2_heat_strip_installation.pdfIn PDF document text
    • https://s3.amazonaws.com/likerajatob/reluwirarakeminori.pdfIn PDF document text
    • https://s3.amazonaws.com/gazivemon/jingle_bells_piano_sheet_music_with_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/xefezesebusu/25316877164.pdfIn PDF document text
    • https://c5e26362-acc3-4c40-9db4-ce0cbd355080.filesusr.com/ugd/681527_d10b82923e944b4caf87d0eb424f27c3.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vunizi/zajabafomiraxapekof.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_off0000e57a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE57A 5664 bytes
SHA-256: 0264f92c8912ef46412deb17feeba95a372a307f2e822c1488698d9b4919d398
font_01_sfnt_off0000f896.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF896 10720 bytes
SHA-256: 1af4e2b4988da58a55d62f295c9c39a83aab0003b826de0e018d5e31af974e60

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