Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ee38035bc8cf146…

MALICIOUS

PDF

84.9 KB Created: 2021-05-13 07:36:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: bbfa7f6e7597a14b72db6ac1f5a2ef1e SHA-1: 5aef4925242c820e6b0164a46a54bdf17d300a6a SHA-256: 9ee38035bc8cf146fb592fa042d77f5602404f17c01fe9714e058d48febab6c4
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that redirects to a malicious domain, likely as part of a phishing attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed to lead the user to a malicious site, potentially for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://fokemale.ru/strik?utm_term=graco+milestone+convertible+car+seat PDF link annotation
    • http://pusikoxelumide.iblogger.org/wawigaje.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495686/normal_5fd912850b469.pdfIn PDF document text
    • https://cdn.sqhk.co/ditetona/gegj1gg/pink_piano_tiles_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370064/normal_5ff6b83a428a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443598/normal_604a2d1a39863.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411926/normal_5fcdaa98d9684.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483842/normal_60087bba25acf.pdfIn PDF document text
    • https://cdn.sqhk.co/sotatixorawi/DeAijlv/90373050862.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366956/normal_5fed65ca1fe21.pdfIn PDF document text
    • http://vijulofa.22web.org/3953936086.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415045/normal_5ffb11cf31430.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448743/normal_60163f1f51380.pdfIn PDF document text
    • https://cdn.sqhk.co/pitekofotada/ib1hcii/vifodazibegonezis.pdfIn PDF document text
    • https://cdn.sqhk.co/mojazejo/jafjjij/play_store_alternative_for_android.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453338/normal_5fe183a3b1783.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jovifididapop.epizy.com/dilil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d55b182-e049-4f59-82ee-17e6aac1fc51/putokus.pdfIn PDF document text
    • http://tizafuj.epizy.com/mujerugukixi.pdfIn PDF document text
    • http://sobibuxasegisun.rf.gd/how_to_make_sub_bookmark_in.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ea9b4c6-128f-4722-8ada-cef6f9f3fe54/detik.pdfIn PDF document text
    • http://satikemapobivix.epizy.com/61245207439.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_off00010e4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E4D 5176 bytes
SHA-256: ba33ff1f9dd8d4bfa4bde657a390b9a49de065f32dcf02b53d5c7f0358ccfc36
font_01_sfnt_off00011fd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FD9 11056 bytes
SHA-256: e0fe3cee2eafafaf7032e572d74c62847fc6636373147d0a7af93a32b6e44f4d

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