Malicious PDF — malware analysis report

Static analysis result for SHA-256 15e182a53dc2a93f…

MALICIOUS

PDF

76.8 KB Created: 2020-12-17 22:50:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: ac76ac168f40e9af1c1d4626c8c8f70f SHA-1: 7ab653a0f8a292267c0f3d469eda50a7cd7832c1 SHA-256: 15e182a53dc2a93fe27d8fbbc9627185f02ca9141c28887b9752ea2d4f3cbaf7
96 Risk Score

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://traffine.ru/123?utm_term=christmas+flash+games+unblocked PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4407571/normal_5fa0e8e2e5fe1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410433/normal_5f9acc4f798ac.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/ae77e922-2885-4589-bf00-00117b33fac1/copy_running-config_startup-config_command.pdfIn PDF document text
    • https://s3.amazonaws.com/kokesatodixon/amnesty_scheme_2018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e228773e-2466-4bd3-8141-4cc68d24f1b5/adobe_indesign_cc_2019_crack_zii.pdfIn PDF document text
    • https://s3.amazonaws.com/xopugup/rosunerakolomenelezot.pdfIn PDF document text
    • https://s3.amazonaws.com/biwubeleba/18474528142.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc3760ea5bc066edfb5e588/t/5fca9dd552c55e381a185bba/1607114197562/cross_stitch_flower_border_patterns.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d9ac1c8c7413143188a8/t/5fc57b983c6ccf69f319a0b6/1606777755284/spotify_hacked_apk_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be2e42b9-fcf3-40cc-86ef-5b1c8f891a69/nolegopedujunamafava.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a450890-2a9e-4bec-a6c3-bb1a8899bff8/rigunekife.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/009153e8-71de-4938-9f32-f6057dca8784/adding_fractions_with_unlike_denomin.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_off0000ef9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF9F 5544 bytes
SHA-256: 54b7bdd8134be32dd21d6e7d20587df6fc1ac650fe754b89a7b069698914a6cc
font_01_sfnt_off00010248.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10248 10556 bytes
SHA-256: 374d015b04f60d431f063d9673a10f0a850576f4a4074d505ddb8f93692389f9