Malicious PDF — malware analysis report

Static analysis result for SHA-256 b61e80886b03c773…

MALICIOUS

PDF

68.1 KB Created: 2020-11-28 07:58:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 81b43646e66994c3873fdd8af9c94d2c SHA-1: d1cdec520fecdda5079d76e3f4451fd426edf35a SHA-256: b61e80886b03c773fdbd4f659f88496e4aafa8f82fa02a595655a2f2b0b41221
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-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://trafftec.ru/123?utm_term=erin+brockovich+movie+worksheet+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4449630/normal_5fb85d629e3f4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409238/normal_5fbf364fd3ad4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465144/normal_5fb5b904980b7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371013/normal_5f8e8bba507c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413968/normal_5f94bcd993a64.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/b5852b51-eff7-492f-8e8c-fbf30d7ce81c/envision_math_grade_2_workbook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9a2c185-d991-40a2-8507-317a3137e1c7/xatozukajuvirad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0af5ec81-0be6-4a3e-944b-d8498595fd65/wufikoko.pdfIn PDF document text
    • https://s3.amazonaws.com/pofumapetat/titorujijuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8fb4f2a7-b753-4e92-a60f-943b1b449074/fumifanabetepolep.pdfIn PDF document text
    • https://s3.amazonaws.com/bevekizadoxuj/92187062419.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1da988cb-1ee7-4174-aa05-f4fb9f97c9f0/xibotonopuwa.pdfIn PDF document text
    • https://s3.amazonaws.com/rekawexuretowo/zenetofofaloramajopowi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a47864d-8fcc-47bf-9689-91b90947b2f5/superman_vs_batman_full_movie_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d33fa78b-6572-4092-b8fc-fcba6c6b2d99/tutulafodaru.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_off0000cdc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDC7 5320 bytes
SHA-256: a0967dc6a51e5cd5e380ef74dd09fbd8785accc739f840747677bf73273b38ec
font_01_sfnt_off0000dfce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFCE 10400 bytes
SHA-256: cf38655e71f5b2074767fe91f1cc990b4f02255d3d6b168913e946e82f457dc1

Open this report in the interactive analyzer, or submit your own file for analysis.