Malicious PDF — malware analysis report

Static analysis result for SHA-256 05aeda5734d23bd0…

MALICIOUS

PDF

81.4 KB Created: 2021-03-22 06:50:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 2044b456f9c6672d9c9a70c8e039f291 SHA-1: 57b2e1ff6a692abb3de0a497023f4f805a307d6e SHA-256: 05aeda5734d23bd0f3ebfd61677919f04f8fd1806e8b31bfd3089e07eb6f5410
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 0.9997

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://fokemale.ru/wix?keyword=socratic+seminar+prep+worksheet PDF link annotation
    • http://budozezofezuje.iblogger.org/bsplayer_pro_beta_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382782/normal_5fde71ab38efd.pdfIn PDF document text
    • http://testertumentum.space/63795299077a0zyy.pdfIn PDF document text
    • http://dsv-trening.ru/sonicwall_nsa_240_hard_resetd3mov.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370063/normal_603954bef3d6f.pdfIn PDF document text
    • http://naturalik.fun/ways_to_describe_wet_weatherk4l1j.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/gotenukevepunin/fodejenenileju.pdfIn PDF document text
    • http://miganuvag.myartsonline.com/65226663780.pdfIn PDF document text
    • http://kigagizotag.onlinewebshop.net/acidosis_and_alkalosis.pdfIn PDF document text
    • https://s3.amazonaws.com/tubupejevomo/bike_race_game_apk_for_android.pdfIn PDF document text
    • http://xosumuzav.epizy.com/41333331777.pdfIn PDF document text
    • https://025b4bf0-2906-4f5f-8a0f-6d4b68fc9518.filesusr.com/ugd/148ee2_a55de39a5b7149b8b98ee0f2af20e81b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xidulumexi/39385887605.pdfIn PDF document text
    • http://pakoxerevigere.epizy.com/tuzevek.pdfIn PDF document text
    • https://s3.amazonaws.com/xugigabitulu/gotixudiwiniwuxewegiwitex.pdfIn PDF document text
    • http://nudoritane.atwebpages.com/8513443277.pdfIn PDF document text
    • http://morufigalolo.rf.gd/91716889348.pdfIn PDF document text
    • https://1138278f-e8d0-45ef-aef3-dbdd7428ac52.filesusr.com/ugd/5be868_67de29f715b94222a03de0d87b54a9cc.pdf?index=trueIn PDF document text
    • https://709e7e89-b264-4d73-b757-064736ed86f1.filesusr.com/ugd/f523c3_130baf9284a546838b0bd8d9196126a4.pdf?index=trueIn PDF document text
    • https://c06d174a-caca-4ab2-b5a0-4525cd3135d4.filesusr.com/ugd/856cea_1522fe8767cf4ce99a1c06c92e6b0429.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sakaburepagase/balsas_lipidicas.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_off00010053.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10053 5400 bytes
SHA-256: 44fe8a7bb12742987de00ffae391a433d39571745ad133e3d970d86d1c2efa16
font_01_sfnt_off0001129a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1129A 11068 bytes
SHA-256: c31184a18877dc29b643665cc9b5f50d4d01a4f0434b97eafff297224ca6f926

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