Malicious PDF — malware analysis report

Static analysis result for SHA-256 66507fdd1cc8e413…

MALICIOUS

PDF

67.5 KB Created: 2020-11-29 06:06:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 1de5ad45c01fd71015a0ca30b3f673b6 SHA-1: d6685962bf3f7d5946ab866e7bf9b0714939e8c2 SHA-256: 66507fdd1cc8e413dabbdfa259fa304ac09b7e268e0c3cbc17f196c7966db893
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 0.9996

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://trafftec.ru/strik?utm_term=tony+little+gazelle+freestyle+elite+manual PDF link annotation
    • https://labajilawuja.weebly.com/uploads/1/3/1/4/131406369/4939920.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409258/normal_5f9f1d8288ab2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420905/normal_5fbd2d6c8519d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369317/normal_5f88297f8971a.pdfIn PDF document text
    • https://diloxutal.weebly.com/uploads/1/3/4/5/134598378/8952545.pdfIn PDF document text
    • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/a55fe.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/ef8de572-3d7e-477f-94aa-677ffdfcc79c/38173384248.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e899cf7-3668-4427-af39-bde91eea38e9/tisuf.pdfIn PDF document text
    • https://s3.amazonaws.com/vajefam/yuki_japanese_restaurant_menu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58f82123-b613-4194-b9d3-c5a02843d0c7/minecraft_14._0_android_oyun_club_in.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_off0000ccf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCF7 5188 bytes
SHA-256: c89bb017818f9bb820697f71705dc55eeafbec4f0f712bf7b1f63e7260b28878
font_01_sfnt_off0000dea2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEA2 10076 bytes
SHA-256: cefa38fe00830cf2eb736b83bdeb47b949ce16c56fa92f956b939cde85cb9972

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