Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ddb525360024a63…

MALICIOUS

PDF

77.8 KB Created: 2021-02-19 23:21:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 0a29c923a89f75e15529558e1b95d39e SHA-1: 03085f2541a78c1fbe68884bcf4afdbefa723a2a SHA-256: 8ddb525360024a63a96073e284edf3370767400c78ad71d435e757dc38996f38
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://maypoin.ru/wb?keyword=does%20the%20usps%20ship%20internationally PDF link annotation
    • https://wofofubuw.weebly.com/uploads/1/3/2/7/132710679/7523586.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385020/normal_601ca1a4568b0.pdfIn PDF document text
    • http://kulinar2020.site/blizzard_stuck_at_07n0yp.pdfIn PDF document text
    • http://my-favshop.online/windows_10_activator_kms_autoiplml.pdfIn PDF document text
    • http://mivetys.xyz/904602288234wozj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365634/normal_5fe6a76f37a59.pdfIn PDF document text
    • http://damvglaz6.xyz/what_is_the_covid_19_in_nigeria92bnj.pdfIn PDF document text
    • https://fulotetaputu.weebly.com/uploads/1/3/2/7/132740707/tozaxuta-xamujubokekumo-diburel-faxonunur.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464700/normal_601bb3d12935f.pdfIn PDF document text
    • https://kolofajek.weebly.com/uploads/1/3/0/9/130969684/343e284e.pdfIn PDF document text
    • https://bomoturu.weebly.com/uploads/1/3/1/3/131384468/luturozebiga-keniditerobaki-vitumepixo-davipuginiji.pdfIn PDF document text
    • http://trynutra.shop/grand_theft_auto_iv_cheat_codesfdy5a.pdfIn PDF document text
    • http://reflectionss.space/xasadinumopibevlin8.pdfIn PDF document text
    • https://cdn.sqhk.co/jijasitov/ebiiiSb/cheat_codes_for_sims_freeplay.pdfIn PDF document text
    • https://cdn.sqhk.co/dixejetafap/c3Z3Ygc/digestion_definition_biology_cell.pdfIn PDF document text
    • https://ronifevux.weebly.com/uploads/1/3/4/7/134737402/tozezenake.pdfIn PDF document text
    • https://xegejigavo.weebly.com/uploads/1/3/4/8/134883842/6240632.pdfIn PDF document text
    • http://rabota-plus.club/sejarah_pasca_kemerdekaan_indonesia87gme.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000f370.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF370 5008 bytes
SHA-256: c56a1592af72b1deec244ce8bb58f663039c1c96014a7a9f5a193dd3c0e35052
font_01_sfnt_off0001047b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1047B 11020 bytes
SHA-256: 2f566884b0dc00d62f52c0d15a517c563f69f1cdc98904421e2c73aa64a9d57c