Malicious PDF — malware analysis report

Static analysis result for SHA-256 e64d5a79f17beb69…

MALICIOUS

PDF

71.3 KB Created: 2020-12-20 00:29:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 37f9ee7addc944ff2c8d9f9b1024f360 SHA-1: 7c61d36cf6c0ae16c6c2fe30b3cf191f62fe5312 SHA-256: e64d5a79f17beb69e77165e83bbb733c075a397ba3360ee94fd67295a866cea0
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by multiple heuristics and a machine learning classifier, indicating a high likelihood of malicious intent. It contains a large number of embedded URLs, with at least one identified as a redirector to malicious infrastructure. The presence of a link farm suggests an attempt to generate traffic or distribute malware through numerous external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://gettraff.ru/strik?utm_term=financial+markets+and+institutions+13th+edition In PDF document text
    • https://kokopepexepu.weebly.com/uploads/1/3/1/3/131379351/juneravujibo.pdfIn PDF document text
    • https://xotuwajugi.weebly.com/uploads/1/3/4/3/134349857/molivopem_bamovuborum.pdfIn PDF document text
    • https://megadezatesaram.weebly.com/uploads/1/3/0/7/130776649/1ad0d.pdfIn PDF document text
    • https://letotanuvimipe.weebly.com/uploads/1/3/4/5/134598603/5800979.pdfIn PDF document text
    • https://niwanokanu.weebly.com/uploads/1/3/4/5/134592400/2507c160.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sakaburepagase/wowegotategisipisiwotixi.pdfIn PDF document text
    • https://s3.amazonaws.com/fulazelof/67135210812.pdfIn PDF document text
    • https://s3.amazonaws.com/dudurat/monticello_drug_company_jacksonville_fl_32204.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdcb8151ac7e22a65153ef0/t/5fdd117877bb886d37013f07/1608323450430/bmw_bike_image_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/folexapurilowe/basic_piano_songs_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/zejugotekuxumanadepafegu.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/database_tutorialspoint_free_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbffa571c8c7413142c9acf/t/5fc1210a7acac6192ae9354e/1606492427581/unblocked_games_66_bmx.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf662feaf37e3b6493f06a/1606379055771/83454514825.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0dd9b8ef7301f8b108504/t/5fc138b2a97599144e23e122/1606498482409/34207468476.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_off0000d673.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD673 5412 bytes
SHA-256: dd15a4814b788c5687b9d5acf018bddd6f27e0f9b4234bdf4752a859af3d52e0
font_01_sfnt_off0000e8b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8B6 11344 bytes
SHA-256: e74eb4feddf1bbd0b13d767f1179a8a07e296f3bbb28762eb2e2c3cd1e37179a

Open this report in the interactive analyzer, or submit your own file for analysis.