Malicious PDF — malware analysis report

Static analysis result for SHA-256 8880f1a942dfbc5e…

MALICIOUS

PDF

72.4 KB Created: 2021-02-26 00:52:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 5684f33ffdf716fa106eda730c78aa5e SHA-1: 014656e0f8619d95db0edf0e31829508f8618276 SHA-256: 8880f1a942dfbc5eba07bfec0197b93730c35c3ee2bbcebc0253d90e5529be78
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://jottigo.ru/award?keyword=tying+the+knot+ceremony+ideas PDF link annotation
    • https://pimazapodozem.weebly.com/uploads/1/3/2/8/132814260/sawek.pdfIn PDF document text
    • http://naturalgood.space/992867293584vx4f.pdfIn PDF document text
    • http://geleostone.online/14564470463gaxds.pdfIn PDF document text
    • https://mixifomako.weebly.com/uploads/1/3/1/1/131164472/dekulakilezoxiwu.pdfIn PDF document text
    • http://return-0.com/934854760910li8.pdfIn PDF document text
    • http://cardioactiveitalia.site/zijaradotutonelecji1j.pdfIn PDF document text
    • http://mignonette.space/jingle_bells_piano_tutorialur3h0.pdfIn PDF document text
    • http://arendagg.xyz/144282542367b3y.pdfIn PDF document text
    • http://flymoney.net/47381230194c8zi4.pdfIn PDF document text
    • https://cdn.sqhk.co/vimerokil/ZdjaoZP/78975521980.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ramakumoda.epizy.com/fenetutevepirujel.pdfIn PDF document text
    • http://lavavoju.rf.gd/bed_admission_form_2018_haryana.pdfIn PDF document text
    • http://mimegovo.epizy.com/imperialism_in_latin_america_answers.pdfIn PDF document text
    • http://jovesiresumu.rf.gd/89746513403.pdfIn PDF document text
    • http://zopopujeji.rf.gd/battle_realms_for_android_phone.pdfIn PDF document text
    • http://riberudedanute.epizy.com/26286454548.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_off0000e03f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE03F 5436 bytes
SHA-256: 57fc0413641f274c615ec936e72e232faf1400b23582236fe70ce7fa4ea14f17
font_01_sfnt_off0000f29d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF29D 10344 bytes
SHA-256: f570e94c8329d6753aa4d4b86f37afb5718d50fea1be819f998e138672593da8