Malicious PDF — malware analysis report

Static analysis result for SHA-256 33d6d0babefecbf9…

MALICIOUS

PDF

72.5 KB Created: 2021-01-26 10:28:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b1aa691996e8bab8d686c1e0780895af SHA-1: d00d6fc714732cb83359ef09f6893d4f546a3621 SHA-256: 33d6d0babefecbf9bfbd95481270d235d4e74529a2d27f8dd395c7ecd1a4f80e
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://seumenha.ru/123?utm_term=diferencia+entre+hardware+y+software+yahoo PDF link annotation
    • https://cdn.sqhk.co/miloxuso/dRjamJs/75049838488.pdfIn PDF document text
    • https://cdn.sqhk.co/nopawuwam/P8Aig7D/mashup_songs_meaning_in_marathi.pdfIn PDF document text
    • https://cdn.sqhk.co/vafodagusun/jijfnhg/33278265847.pdfIn PDF document text
    • https://cdn.sqhk.co/bepemuno/dVgjihi/groove_life_mens_silicone_rings.pdfIn PDF document text
    • https://cdn.sqhk.co/zobelekivix/bielifZ/dabujoxafo.pdfIn PDF document text
    • https://cdn.sqhk.co/penunotati/mjfisWR/fevararifawunimofarilud.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://figaniver.epizy.com/34829441353.pdfIn PDF document text
    • http://malinaliwul.epizy.com/52909908901.pdfIn PDF document text
    • http://wavudipikudela.epizy.com/30437434516.pdfIn PDF document text
    • https://s3.amazonaws.com/dobikasukavu/sasegojegexogexopuji.pdfIn PDF document text
    • http://kitasiru.epizy.com/62680814243.pdfIn PDF document text
    • http://losaxoxajav.epizy.com/ionic_4_login_page_template_github.pdfIn PDF document text
    • http://vujulazi.epizy.com/kizutizobowapoje.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/how_to_copy_android_box_firmware.pdfIn PDF document text
    • http://wozawexopad.epizy.com/pdf_ceros_dan_batozar_tere_liye.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_off0000dea7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEA7 5268 bytes
SHA-256: 9db1a2862b087e96938881d557ad14c3a0ba6157faaa033ddb0aaf0526ad391e
font_01_sfnt_off0000f0ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0AD 10676 bytes
SHA-256: f7d9968b8f5f60c6bb9e3a69c99f1550ff47469d55b8edf725720ad15974b56a