Malicious PDF — malware analysis report

Static analysis result for SHA-256 1cc3e58123f79663…

MALICIOUS

PDF

73.9 KB Created: 2021-03-19 08:13:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 1fa74d58475e2065f66b17eb90e776d6 SHA-1: ab0c686d1e67143e4b1f111a5b3901dd03e4713d SHA-256: 1cc3e58123f79663fd4d49a05c0bd8e903da1bd2030a3b21032b0281600cd452
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 0.9998

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://midufefew.ru/wix?keyword=maxwell+quick+medical+reference+pocketbook PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4380413/normal_5ff88d4aac3cc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4530868/normal_6013f47a883e7.pdfIn PDF document text
    • https://cdn.sqhk.co/guzamuvi/a11iffM/angular_4_interview_questions_for_experienced.pdfIn PDF document text
    • https://cdn.sqhk.co/kogeledewafo/xwthghj/dont_touch_my_phone_wallpaper_for_iphone_x.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408463/normal_6001f7885d895.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456391/normal_5fd8092a5211f.pdfIn PDF document text
    • https://cdn.sqhk.co/kululojilo/EJ17gh7/rakejoxosekijo.pdfIn PDF document text
    • https://cdn.sqhk.co/ruxuzobisu/UgcPIgj/high_sea_saga_hack_ios.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374708/normal_603ffc0415c99.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/51bd87f6-bf1c-42a9-b3d4-54ebcfc97790/dofifadisudezomepupawe.pdfIn PDF document text
    • https://s3.amazonaws.com/kefefetafij/90788423553.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fd29de1-8ba5-485a-8d92-ba57780ac409/dijukurogufijotukog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99f96b8e-4c9b-4c65-8e5e-6a31d22252d4/10974687205.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/281e49c1-2475-47c5-b3fd-74c37c6454e9/how_much_does_it_cost_to_run_a_gas_heater_per_hour.pdfIn PDF document text
    • https://s3.amazonaws.com/tapelu/botibidotirax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9dfd4aaa-4b80-4fbc-80a8-40e23e34f8dd/formulas_volumen_de_prismas_y_piramides.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06e1f8a5-5fec-4134-8b3a-0a0928ad5f1b/pozob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1da4a02-4d39-44e4-bff3-4b670c0998c7/conexant_audio_driver_windows_10_lenovo_g580.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb814599-17f2-40a7-97b3-4b4d8c11f3b4/lopopubuganexune.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

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE066 5616 bytes
SHA-256: b20fd06740a78de7fcc82bbae232c1fa7017dbd9bab01051437e9c13ff2107b6
font_01_sfnt_off0000f389.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF389 11464 bytes
SHA-256: 5c8ddb79dd4c1fc812daa7c02f8f4f969fc0146128fd96a13e87cfae8192a397

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