Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a8e02fe7e4de597…

MALICIOUS

PDF

84.9 KB Created: 2021-03-06 09:05:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: dd280646b739ac4ce9e8f420123905c8 SHA-1: 5a713fdaf82be213e4b09fdfc50e59ca7138d012 SHA-256: 0a8e02fe7e4de59764af7be87341218da41afab87e5e6af7155c08758649b848
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://leonvi.ru/123?utm_term=how+to+sell+charcoal+drawings PDF link annotation
    • http://imedo.ru/10839866616chqac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472182/normal_5fd178667eec7.pdfIn PDF document text
    • http://everydayy.fun/gupixivojosekewm4emj.pdfIn PDF document text
    • http://free-at.pro/19127500273i1me7.pdfIn PDF document text
    • http://3bureaureport.info/xagigad5h38z.pdfIn PDF document text
    • http://pestore.pro/17854346828pm2cz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459341/normal_6033fc5003a11.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469834/normal_601f2c14db372.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471692/normal_6036d3ad7ee39.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/ponivotigegepub/brasero_windows_xp.pdfIn PDF document text
    • https://s3.amazonaws.com/kefefetafij/sims_3_expansion_packs_in_order.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc611d78-69b0-4a88-91ab-8e33307dd006/telavak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2492d6d6-7504-44e0-9f27-15878f10519e/how_to_clean_ge_washer_front_load.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/31483389253.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23359468-05b7-4eda-98fd-67f50feff173/mekeguxexewozom.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/mr_muscle_sink_unblocker_safety_data_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/rovenga_aarsh_benipal_song_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jolozidabi/36967277835.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/99030496316.pdfIn PDF document text
    • https://s3.amazonaws.com/fosawef/22522244910.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/basic_mechanical_engineering_questions_for_written_test.pdfIn PDF document text
    • https://s3.amazonaws.com/zagubip/chatal_band_song_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/android_one_s1__100.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_off0000ff99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF99 3532 bytes
SHA-256: 623d055527fb4e56cfe0db93e652d5a7dff7857bced53615566960079e8b2193
font_01_sfnt_off00010c41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C41 5252 bytes
SHA-256: 76d645db00dfd708b438c0f67c139cccde3d543b53389d48957ce256704f6ab4
font_02_sfnt_off00011e27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E27 11644 bytes
SHA-256: 71b5364b4d0ee85a33d55a23422d4063b66f0d8009f194f242654ac201352a2a

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