Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2dbcbb84ea061be…

MALICIOUS

PDF

73.2 KB Created: 2021-02-21 01:08:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b6a5845c2ed2d10e8406817db9c15a1a SHA-1: cee9503c363fcb521e51f929d9b4a4df49a3eebb SHA-256: c2dbcbb84ea061becf93654b2cf945a8c5005822a7a49538d0fd1dca68087fd3
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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://bologen.ru/123?utm_term=how+to+troubleshoot+dell+desktop PDF link annotation
    • https://degezumibupupek.weebly.com/uploads/1/3/4/8/134862322/zebidapu.pdfIn PDF document text
    • https://fewanisip.weebly.com/uploads/1/3/2/7/132712603/kaliboruxifelev-vikoxupa-sowerozabo.pdfIn PDF document text
    • http://meetraisins.club/cheat_engine_apk_rootsuz10r7v.pdfIn PDF document text
    • https://cdn.sqhk.co/pixafosabow/vggwgh1/all_vector_quantity_list.pdfIn PDF document text
    • http://zerkalo-fugicar.website/dnd_5e_ballista_ruleskpvqf.pdfIn PDF document text
    • https://cdn.sqhk.co/bikegola/uBhddjf/guvasori.pdfIn PDF document text
    • https://tiwuvaxitunux.weebly.com/uploads/1/3/0/8/130874175/c221ed9037.pdfIn PDF document text
    • https://vifegozotamideb.weebly.com/uploads/1/3/4/2/134236473/31762012.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/toguvaju/spectra_s1_breast_pump_manual.pdfIn PDF document text
    • http://pelatutokutemi.epizy.com/is_xfinity_home_security_available_in_my_area.pdfIn PDF document text
    • https://s3.amazonaws.com/tobito/nepubujavez.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/convert_byte_to_base64_string_android.pdfIn PDF document text
    • http://xezepagonozaniw.epizy.com/barmeno_font_mac.pdfIn PDF document text
    • http://xiteberukebeki.epizy.com/xufogojil.pdfIn PDF document text
    • http://fusezumapaj.epizy.com/wagaxuvusumawewevifopuz.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_off0000e3be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3BE 5092 bytes
SHA-256: 9344143d54297a214ffa20e0ea8a1768d83279727f954222d9f110b7650b082a
font_01_sfnt_off0000f50d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF50D 10196 bytes
SHA-256: d44416c2f9013957845ed0b6ab6295cfa62b03009abff9ee3012c5b671b6eaec