Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b2efb98e3b3dc0c…

MALICIOUS

PDF

72.5 KB Created: 2021-02-26 20:26:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 9c60d0a7dcda9e6056706f6559f91e7a SHA-1: 03ddd4cd7d7bc6d4ab69687bdbf740632ef7a5b3 SHA-256: 7b2efb98e3b3dc0cf4fd29ee3e57ae7f0f8a373cab82ddff35db9b30f6a6ad7d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://fokemale.ru/award?keyword=are+variable+speed+pumps+worth+it PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4503309/normal_5fcd98974aaca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454984/normal_5fe8f2435dfc6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454821/normal_60391a3eec69f.pdfIn PDF document text
    • https://wiwovadale.weebly.com/uploads/1/3/5/3/135322143/21d2884d9ee.pdfIn PDF document text
    • https://zunenevalomedo.weebly.com/uploads/1/3/4/8/134855990/8e84be.pdfIn PDF document text
    • http://xuxetosufuzo.getenjoyment.net/focusrite_scarlett_2i2_tech_specs.pdfIn PDF document text
    • http://xoroketogejuxe.mywebcommunity.org/where_can_i_donate_clothes_near_me_today.pdfIn PDF document text
    • https://rimalelor.weebly.com/uploads/1/3/4/8/134857757/kubazobekozebogevog.pdfIn PDF document text
    • http://kinokaiff.space/gidedisaxovidofem2fump.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368976/normal_5fc884f95dcef.pdfIn PDF document text
    • http://rutenowataba.iblogger.org/tested_advertising_methods_by_john_caples.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pabewuvuxaf.onlinewebshop.net/romantic_poem_for_my_wife_on_her_birthday.pdfIn PDF document text
    • http://ziwejozaz.epizy.com/literature_circle_illustrator_role_sheet.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_off0000df0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF0A 5480 bytes
SHA-256: 5ccba933dd91d98896970f9c184fb8688128ff5c1afd3e3d1b25d5218acebe38
font_01_sfnt_off0000f18c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF18C 10548 bytes
SHA-256: 23979789c7e97b5fa28814ec2e8bf38716fa2018857412341d7114970c473b73