Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9766283891269c5…

MALICIOUS

PDF

63.6 KB Created: 2021-02-19 16:46:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 92c1c536d2dd2c8bcf5f673575747f35 SHA-1: 99bef99f37f9d68c9e323b81dc12d02d4a52a549 SHA-256: d9766283891269c5d06af3df1a845b5fe2842c38958974a32947b0610b463a23
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://baarspo.ru/wix?keyword=whatsapp+web+apk PDF link annotation
    • https://cdn.sqhk.co/xilelawemu/jpehgD4/zuwuvimilurazeneninabajoj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495694/normal_60233de4d0cc5.pdfIn PDF document text
    • https://cdn.sqhk.co/vutazazu/kyOjhif/88128678155.pdfIn PDF document text
    • https://cdn.sqhk.co/vukupamita/gjKFjgn/pelujabakil.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499958/normal_5fcdea51926eb.pdfIn PDF document text
    • https://cdn.sqhk.co/gafisasiwu/FidyGAd/94694979192.pdfIn PDF document text
    • http://lovasosirukes.iblogger.org/generate_test_coverage_report_using_maven.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404503/normal_5ff6909f840ed.pdfIn PDF document text
    • https://cdn.sqhk.co/midijanere/hiiggci/specialized_women_s_mountain_bike_shoes.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402933/normal_5ff4de4887f1b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wivoruremuwun.rf.gd/42990428782.pdfIn PDF document text
    • http://dusetelonuzaj.epizy.com/academic_integrity_tutorial_with_quiz_answers.pdfIn PDF document text
    • http://pigibotokaper.epizy.com/false_police_report_georgia.pdfIn PDF document text
    • https://s3.amazonaws.com/jarirotexab/94479211060.pdfIn PDF document text
    • http://davejizejago.rf.gd/iphone_dock_to_android_adapter.pdfIn PDF document text
    • http://gerosopidazab.rf.gd/figo_guidelines_for_placenta_accreta.pdfIn PDF document text
    • http://fogalefudomuj.epizy.com/99163782567.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_off0000bcb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCB9 5088 bytes
SHA-256: 14eb43dc5aa58fe9ba3fefec3909e0996436821453701f7c74f7f65487e512c8
font_01_sfnt_off0000ce19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE19 10388 bytes
SHA-256: 0a2ad1384cc384189f95a67a4a0b57cad154d03aa2254faf7312b646b377691e