Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee3fccbe730f68cb…

MALICIOUS

PDF

71.6 KB Created: 2021-02-21 14:54:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 0ace469666b64ec9b8c277385216a351 SHA-1: b604f72fdf318f5894717f713c8a7f540a0c860e SHA-256: ee3fccbe730f68cb4af8882699bfcfb481da71ed74d52a8d10778734e6b5f5f9
96 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as a phishing trojan and a machine learning model assigned a high probability of maliciousness. It contains numerous embedded URLs, one of which is https://bologen.ru/wix?keyword=map+of+ancient+india+during+mahabharata, suggesting a lure to a phishing or malware distribution site. The document body, though heavily obfuscated, contains metadata related to its creation, indicating it was likely generated to appear as a legitimate document to trick users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://bologen.ru/wix?keyword=map+of+ancient+india+during+mahabharata PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4422620/normal_5ffd224b19eaf.pdfIn PDF document text
    • http://itsamorem.com/jifezijuxeponars5xj.pdfIn PDF document text
    • https://cdn.sqhk.co/jogeguzotire/gigkoia/26836459579.pdfIn PDF document text
    • http://consequences.space/capitulo_2a_realidades_1_answers_page_31rfpc6.pdfIn PDF document text
    • https://cdn.sqhk.co/lojosexotak/heBHUNr/word_crossy_6169.pdfIn PDF document text
    • https://cdn.sqhk.co/xafiguzi/igFQigs/straight_talk_home_phone_international_calling.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494674/normal_60310f7bbc008.pdfIn PDF document text
    • http://svoydvalend.xyz/apologize_email_for_wrong_information6n017.pdfIn PDF document text
    • http://noksipals.online/kipilerime48au.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384634/normal_5fe4e8d90955a.pdfIn PDF document text
    • http://on-arenas.com/spanish_to_english_worksheets_printables1c6sc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483587/normal_5fe052a25c21e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405904/normal_5ffdc61a40b7f.pdfIn PDF document text
    • https://cdn.sqhk.co/toxinize/ZAhjZhj/smash_wario_guide.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lazolu/healthy_heart_visual_food_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/gruffalo_characters_colouring_sheets.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_off0000db3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB3C 5504 bytes
SHA-256: 0010aee5ac1a8f08e451704f554d46ec21d417314c3ea78467de59efed75695d
font_01_sfnt_off0000edd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDD7 10332 bytes
SHA-256: 557cdf1f294af36802f78c957f7c5093089fe1f73a73ec8785c200988c4673f2

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