Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0121cd19aadf366…

MALICIOUS

PDF

81.2 KB Created: 2021-05-04 08:41:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 9243012432de5c6820cc6b3cabfdd360 SHA-1: 959272d707f1ff4631a42bdddffbb38e22615f22 SHA-256: d0121cd19aadf366265607fba9b6b3a3962e1d260c8704cb85d65c25c7526546
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 0.9995

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://botokaw.ru/strik?utm_term=crochet+baby+slippers+for+beginners PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4418368/normal_606c66813eb33.pdfIn PDF document text
    • http://xozowilozoga.mywebcommunity.org/624234181.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426413/normal_5fcc56c88a57c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489429/normal_5feb25eba67d2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455375/normal_5ffb867266491.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/f5a6f05f-d051-46b5-8bc4-a632d0009587/21649998332.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/94169872290.pdfIn PDF document text
    • https://s3.amazonaws.com/vabedafozo/dejoxujatajanud.pdfIn PDF document text
    • http://zevesijuduma.atwebpages.com/nomenclatura_das_amidas.pdfIn PDF document text
    • https://054d5c26-596f-48a3-87a7-0fc79031e5db.filesusr.com/ugd/599026_2d86c60797fb4b3687f6bac5dcb03375.pdf?index=trueIn PDF document text
    • http://rabelame.atwebpages.com/story_elements_worksheets_3rd_grade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2653f203-b3ac-49e0-bff7-3360b8b36416/resuwowivamepidusupubu.pdfIn PDF document text
    • http://wutesejib.onlinewebshop.net/kaworadonovedevexunugale.pdfIn PDF document text
    • https://s3.amazonaws.com/wudibirewuduto/data_structures_and_problem_solving_using_java.pdfIn PDF document text
    • http://gixejemazob.myartsonline.com/aqeedah_tahawiyyah.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79c50957-68ce-4fdb-9168-94a1de82ecde/dijesalezaxino.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/47928936233.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e926cbf-9d08-48f0-8076-a864b84c14d9/64405219000.pdfIn PDF document text
    • https://ba10d46a-d7c1-43af-8542-f1a50f31aa8a.filesusr.com/ugd/4dded2_2352a03e862b4744b3f86454897bbba9.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wovigebi/dogifivowulufig.pdfIn PDF document text
    • http://xovolefewawex.atwebpages.com/bactrias_mesfilas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15eb82c8-251c-4946-9d9e-4ebfc4159ee0/55907016229.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_off0000f15e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF15E 5328 bytes
SHA-256: 22a24e736d79e2b0f101cd3d98f85a5c676a57c2ffabda6320a5f74a572c2390
font_01_sfnt_off00010373.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10373 11204 bytes
SHA-256: c4eb8168beaf38b101d447db1969362a4b18d0b613f17ee987c41b3844b0a59b
font_02_sfnt_off0001294d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1294D 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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