Malicious PDF — malware analysis report

Static analysis result for SHA-256 375d6ec1a51852e0…

MALICIOUS

PDF

74.6 KB Created: 2021-02-23 02:49:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 099a9cae7387878e46422f9b6901ca5e SHA-1: 7d98dcb8ce05a5c92363e6635f5b3935cf4a4f76 SHA-256: 375d6ec1a51852e0c877d0190044d1fa993bb3ea794f4ea0501a1757109f078b
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that points to a suspicious domain, likely intended to redirect the user to a malicious site or download a payload. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though heavily obfuscated, contains text related to business plans, suggesting a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/strik?utm_term=how+to+write+a+business+plan+for+a+startup+company PDF link annotation
    • https://cdn.sqhk.co/zesonixiv/ihhlBha/vatib.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410016/normal_603434bf880c8.pdfIn PDF document text
    • https://cdn.sqhk.co/zolaxadivowe/fidjjev/sefigogifuta.pdfIn PDF document text
    • https://cdn.sqhk.co/manuguwe/Nytigjb/wenone.pdfIn PDF document text
    • https://cdn.sqhk.co/suxavawudomo/jcJggjv/wikipedia_donation_2020_is_it_real.pdfIn PDF document text
    • https://cdn.sqhk.co/jimavidozeze/hcgfM65/3674604439.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370762/normal_6033a6205c4b0.pdfIn PDF document text
    • https://cdn.sqhk.co/somisafeg/bhjhcgd/86537862357.pdfIn PDF document text
    • https://cdn.sqhk.co/moturalogupe/JaNOgfZ/xizapujabisarukidipetob.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467912/normal_600a59f5c9791.pdfIn PDF document text
    • http://dusosax.66ghz.com/pijisujewapi.pdfIn PDF document text
    • https://cdn.sqhk.co/kafufojugure/eghhglc/34541902537.pdfIn PDF document text
    • https://cdn.sqhk.co/kesavaki/fjbAicz/the_walking_dead_movie_2020_release_date.pdfIn PDF document text
    • https://cdn.sqhk.co/tojorovexuw/cicVai9/33430015654.pdfIn PDF document text
    • https://cdn.sqhk.co/fefamuve/F2kjb2Y/4530589044.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e5c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5C8 5456 bytes
SHA-256: 29f15327b56c61afde2ff0d5a227e1b18a153357b49e0adbd9199b695243765f
font_01_sfnt_off0000f854.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF854 10776 bytes
SHA-256: 4266d4647e0ea8ace1251097e84419e3021f6037f0d2bfa2902d79991d480608