Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ae9fb7edef5e676…

MALICIOUS

PDF

69.4 KB Created: 2021-01-29 16:58:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 308284d6b1d4fc9ffc1553e03dc61bbb SHA-1: 184c2e36126dc3b3ecacd3106b6b4d06b6846d37 SHA-256: 5ae9fb7edef5e676cdf194a715a785b5042dfa39344822d6503e4a5d1aa47e98
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://trafftec.ru/wb?keyword=relic%20runners%20rules PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4486368/normal_5fca891c8d5f6.pdfIn PDF document text
    • http://juwatorota.22web.org/basecamp_garmin_manual.pdfIn PDF document text
    • http://mestorating.ru/718324873880cu52.pdfIn PDF document text
    • https://maxolesaso.weebly.com/uploads/1/3/0/7/130776327/vifejemaruj.pdfIn PDF document text
    • http://immorta-cross1.club/wurizofulabuvirotm5td5.pdfIn PDF document text
    • http://natbeach.space/big_baby_dram_cha_cha_beyoncedsumn.pdfIn PDF document text
    • http://sovetnik53.ru/manual_fire_protection_engineeringjowby.pdfIn PDF document text
    • http://unosital.space/pitbull_dog_price_in_keralat7uv0.pdfIn PDF document text
    • https://xuzomavarek.weebly.com/uploads/1/3/1/3/131383242/3802053.pdfIn PDF document text
    • https://rexawalifutox.weebly.com/uploads/1/3/4/4/134458468/9162741.pdfIn PDF document text
    • https://vipapixamez.weebly.com/uploads/1/3/0/8/130814430/zixip.pdfIn PDF document text
    • https://luvofebujapima.weebly.com/uploads/1/3/0/9/130969865/250ab.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rigirulame.epizy.com/educational_printable_worksheets_for_4_year_olds.pdfIn PDF document text
    • https://s3.amazonaws.com/xufoxorog/asking_for_recommendation_letter_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisigetizoxif/cyrillic_pronunciation_guide.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_off0000d57d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD57D 4592 bytes
SHA-256: 544c261a5e0050cbd82441136c46000387d9a25e2d85e22451141764b0d1b306
font_01_sfnt_off0000e52f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE52F 10536 bytes
SHA-256: b07a0025c420eb19f6783f3e6d11bd36561495793cfafd9ed693dbac2171e12f