Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd75e0501694b9ee…

MALICIOUS

PDF

73.1 KB Created: 2021-02-25 09:29:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: fd8ac1b58395691917001690cb1e3a7a SHA-1: 57549763c60f33f6f258c3c6b41a908c2a75da15 SHA-256: dd75e0501694b9ee4d316e1b4454cdd99dda638016a08214d3792707193e1dd8
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://jottigo.ru/wix?keyword=free+amazon+gift+card+code+generator+no+download PDF link annotation
    • http://nasporte1.fun/red_ball_world_1_apkpd247.pdfIn PDF document text
    • http://callipakk2.site/39291468269hg8aa.pdfIn PDF document text
    • http://onlyforyou.space/grammar_worksheet_year_8owcj7.pdfIn PDF document text
    • http://gexifivavipi.iblogger.org/vezalopomudaniwofirog.pdfIn PDF document text
    • http://pigaxugopaxazuz.22web.org/assistive_touch_for_android_apk.pdfIn PDF document text
    • https://dulebepil.weebly.com/uploads/1/3/3/9/133999512/0aecb3b7009.pdfIn PDF document text
    • http://icub.tech/66948139984e0hp.pdfIn PDF document text
    • http://xudogiborijum.66ghz.com/kivogizujegom.pdfIn PDF document text
    • https://dikurowewo.weebly.com/uploads/1/3/4/8/134893632/174897.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403540/normal_600eba5178435.pdfIn PDF document text
    • https://lekamenofujilap.weebly.com/uploads/1/3/4/6/134690267/4617523.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zuputes.atwebpages.com/12852722152.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/draw_io_templates.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_off0000e116.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE116 5260 bytes
SHA-256: 407f8e9d3a26e0a57a132c2d476d868d643beb9318cf5b8a31c353959c99534d
font_01_sfnt_off0000f303.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF303 10644 bytes
SHA-256: 17ae1650a1c274623277c3444dbeaa1f2dc1d1342bb237640d42a71322429600