Malicious PDF — malware analysis report

Static analysis result for SHA-256 eef388abb9f0073f…

MALICIOUS

PDF

71.2 KB Created: 2021-02-24 22:12:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 15a7fcbc0d5bf0c8eacb11f638f8461a SHA-1: 629ad985eb44ef6cfcd501c09d589c624519e7ed SHA-256: eef388abb9f0073f491d367e0bc50f57fd41751cf23a608fa20b634c87a8ba6a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/award?keyword=why+is+my+honda+lawn+mower+not+starting PDF link annotation
    • http://dazinifuxevoji.22web.org/26158306324.pdfIn PDF document text
    • https://sinekamawo.weebly.com/uploads/1/3/0/7/130776883/moxazisakibevib_nafokefix_rijuv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365608/normal_6010fda7f1bcf.pdfIn PDF document text
    • https://dolilifiwu.weebly.com/uploads/1/3/4/4/134401054/buzadibegodem.pdfIn PDF document text
    • http://mapotilij.mygamesonline.org/how_do_i_change_the_time_on_my_panasonic_landline_phone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367903/normal_601e96e9ebc7e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426418/normal_602bec0b4da12.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385012/normal_5fc6e023eed09.pdfIn PDF document text
    • https://gixinizolovuz.weebly.com/uploads/1/3/5/3/135348456/6089801.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sogivuwe.onlinewebshop.net/vusipokewur.pdfIn PDF document text
    • http://falagiwodoki.rf.gd/75178011686.pdfIn PDF document text
    • http://vawujularow.rf.gd/full_form_of_ktm_motors.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_off0000da53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA53 5448 bytes
SHA-256: 2e6bcb9097ef5b6cda3b927a5b458ea566b5d3dd3c714adcf4d956d75c069f9b
font_01_sfnt_off0000ecc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECC8 10332 bytes
SHA-256: b4f427f32d6ee85fd02759ee44db683ba2387d358a21f62d265bfe319f175df9