Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6bd515353a7bce6…

MALICIOUS

PDF

62.8 KB Created: 2020-12-05 16:28:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 153ebcde0d43140ab4bd009473ee7702 SHA-1: dd0ef626d47a66d9c1e91855f957d0386c933ced SHA-256: d6bd515353a7bce6ec97bca83afae7fb509cc983d08bebf855d2c2b08823d6c0
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://trafftec.ru/strik?utm_term=what+2+colors+make+red+violet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4463785/normal_5fc38943da97b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366382/normal_5fb66cc877962.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500447/normal_5fca41b52c47f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471996/normal_5fa7558e4a8a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376850/normal_5f97312ccc874.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc0abc6bda9c57a97bd16fd/t/5fc17777fa04221c715731ed/1606514552476/18_x_15_outdoor_cushions.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc53c14116eb00e3c6863a8/t/5fc6d2610791337046d19487/1606865506539/device_manager_windows_10_blocked.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0eda3ec917750a3d80aaa/t/5fc11347f8cdb769c6093b67/1606488907637/nosutiribaxujimatagowo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc10b9cab79f442f22a6952/t/5fc24c66cb3e0f57719b23f8/1606569063111/58477313355.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc67d6924b06a7eb3261b77/t/5fc9be668d0ac92c7be1c15f/1607057007598/hide._io_mod_apk_26._1._2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a940b03-8743-4cfb-8bdf-602af7990999/koxupumuwulukamefepuso.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc29ae5bdb33045eecd1eec/t/5fc3aa4418e72e5fdb47e923/1606658629307/69332497585.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf5cd5e18c5c478ef3716a/1606376662013/grand_summoners_reroll.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5ca7b8787e879898d78f7/t/5fc7fe725bac470238ed2621/1606942323263/92773500962.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcff0873299f0c543a4453/1606221577039/vafixozuzugozalapegobigil.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_off0000b95e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB95E 5448 bytes
SHA-256: 40f9d4b92a98629a8f463e1c708064062ed55643ffc90c092b6c36df7284eb7e
font_01_sfnt_off0000cbc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBC9 10164 bytes
SHA-256: d6070e7beb9310571d9dd32f9846cfca1500b89a5c2ff6d7b894d906c45316fa