Malicious PDF — malware analysis report

Static analysis result for SHA-256 0622a550de169936…

MALICIOUS

PDF

70.3 KB Created: 2021-03-02 23:16:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 649e4b32ecb6ec200d84cf65d07e7dbc SHA-1: f8a50b2099d69513c9218a13d86e2d5a1e96ea3c SHA-256: 0622a550de169936645235510866c1b9c3acbd249ecbf3f40ecc0c118dbbc45c
126 Risk Score

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
  • 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://kuzutuzo.ru/wix?keyword=ne+yo+one+in+a+million+mp3+download+skull PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4415524/normal_60071c16791bd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4529095/normal_600515515447e.pdfIn PDF document text
    • http://zalavovira.22web.org/89615727999.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477367/normal_6035fd0cb9eae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378386/normal_5fe87ba1d2ec0.pdfIn PDF document text
    • http://tufodudem.mypressonline.com/boy_scouts_popcorn_order_form_2019.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423431/normal_603a7cc478f55.pdfIn PDF document text
    • http://worelimupuvefam.mywebcommunity.org/how_to_do_a_proof_of_service_by_mail.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408001/normal_60339a600d268.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461498/normal_6039167b13510.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408009/normal_6008e37eb2a69.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://guvukexapa.rf.gd/how_to_find_your_own_ip_address_windows_7.pdfIn PDF document text
    • http://wulibazosuxib.onlinewebshop.net/class_11_physics_formula_sheet.pdfIn PDF document text
    • http://giwofigu.epizy.com/wulejulime.pdfIn PDF document text
    • http://ruzuzis.rf.gd/rifapewezugopakom.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c567.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC567 5204 bytes
SHA-256: 3bdcef2996920488608ac196d8766676bd4201d8f199a8c7430e4e20df29b179
font_01_sfnt_off0000d714.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD714 12552 bytes
SHA-256: 7710520164e79c98d265ef64530e3897e772a097a238bffdb0ca515d037c9f25
font_02_sfnt_off0000fdef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDEF 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361