Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7a54933e8fb1a52…

MALICIOUS

PDF

64.8 KB Created: 2020-12-05 06:53:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 2029cdf8fb5badf8b0eee7caeb85f69d SHA-1: dc7602ade348f3d072d0714a975cee99060b4f0b SHA-256: f7a54933e8fb1a5297444d6253928152a917307df972a81e0bdf461f9b2c8f03
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 0.9997

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://trafffi.ru/123?utm_term=how+to+read+better+and+faster+by+norman+lewis+amazon PDF link annotation
    • https://zeginuvo.weebly.com/uploads/1/3/0/7/130775519/7c6269aba0239.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/7df9bc3e-4068-49d2-9aac-67a76c700c65/46346855997.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e069ae2-78ee-4c64-a77a-7e1913a04e27/lexakajaxizewuzazavurer.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc67dd2abaecd331848a494/t/5fc6bbbb5060c93fcd65c60d/1606859710878/is_there_a_wii_u_emulator_for_ios.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98d6c694-73d9-4afb-93e6-b0fa478e5345/wewelixed.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc29575be9b693951158987/t/5fc676381972c46e3c7d97f7/1606841912543/4301507041.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/730f3a55-fcde-480d-a7e6-a73e2316a011/zigasetikabub.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc106a17848ba205d193829/t/5fc275c64f983757202f4f55/1606579654880/lumber_tycoon_2_money_script_lua_c.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9d44b7f-d421-488d-b840-ca96a3defbca/gelanoxavonure.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d0065e8e827d428d60b5/t/5fc1603ea97599144e2af989/1606508608268/cleanmymac_3_crack_serial_keys.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd05b200f7af3919d4ae01/1606223283115/xagafowojakemep.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_off0000befc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEFC 5396 bytes
SHA-256: a637c77df8a7e4efcda43aab6257cf6a66027bf4c91632930860a601024bbab3
font_01_sfnt_off0000d15a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD15A 10484 bytes
SHA-256: c2bf3923b65c7d3029ac10a28a41d9ff8b5ff641fc62617e1426e16f49aa2dc5