Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e6db6506e2b567c…

MALICIOUS

PDF

73.1 KB Created: 2021-03-01 07:46:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b4d140bb3501c05b61c6de68ac046a41 SHA-1: 7a5916fa10355336d0ab1ab6ddc477cd7b6cc9cc SHA-256: 5e6db6506e2b567ca22f3d4aa2648c778fb974541954e167d64296b1bcc30a8d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://baarspo.ru/wb?keyword=fortune%20telling%20with%20playing%20cards%20jonathan%20dee%20pdf PDF link annotation
    • https://pejifote.weebly.com/uploads/1/3/5/3/135348690/rudovap.pdfIn PDF document text
    • https://fogujudusimasob.weebly.com/uploads/1/3/4/7/134713994/3800038.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374373/normal_5ffc7606a86c7.pdfIn PDF document text
    • https://nudiwosesi.weebly.com/uploads/1/3/4/3/134317077/womegatavumabi.pdfIn PDF document text
    • http://olx-delivery.cc/xenaghdxw0.pdfIn PDF document text
    • https://gimituwemowi.weebly.com/uploads/1/3/4/8/134872285/5522295.pdfIn PDF document text
    • http://snatural.space/wamisok2y17.pdfIn PDF document text
    • http://kpovli.ru/negative_binomial_regression_python_exampleml06c.pdfIn PDF document text
    • https://zemedabumudog.weebly.com/uploads/1/3/2/7/132712209/nuwexazarixog.pdfIn PDF document text
    • https://minedikatew.weebly.com/uploads/1/3/0/7/130739540/bf6c842bc.pdfIn PDF document text
    • https://gadiziwit.weebly.com/uploads/1/3/1/4/131406086/xiwuje.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/fezenur/36155271616.pdfIn PDF document text
    • http://kagapoxarizi.rf.gd/what_are_the_irregular_imperfect_verbs_in_spanish.pdfIn PDF document text
    • https://s3.amazonaws.com/rimepusox/61513571366.pdfIn PDF document text
    • https://s3.amazonaws.com/bizamesuwepe/cccam_2019_free_apk.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_off0000df99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF99 5640 bytes
SHA-256: 1cee7595ac5a94689726c24ab6411e89c2f2e7deecc38a146a5defbde1430628
font_01_sfnt_off0000f2e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2E2 10588 bytes
SHA-256: 8faff95542e1b3396a6264b5882b99fd26ad54b83728f75901765a61b8e8f728