Malicious PDF — malware analysis report

Static analysis result for SHA-256 57e66784af8af469…

MALICIOUS

PDF

61.0 KB Created: 2021-02-14 18:47:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 020c9c4cf5b4eac3b46a085a1013911f SHA-1: bdcd8ecee0df55220e5ff47d449c768d179c4697 SHA-256: 57e66784af8af469020f9fc6165f78af9b2e3f49226dffd8dae1b4bf6acb9fc8
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://druttle.ru/wix?keyword=cps+google+mail+login PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4422368/normal_5ff5b2a726532.pdfIn PDF document text
    • http://dkmz1.club/asplenia_funcional_anemia_falciformeh0k93.pdfIn PDF document text
    • http://segwaywheelchair.ru/movies_converter_to_mp4_freexupwy.pdfIn PDF document text
    • http://belldiscount.ru/67821827147gp6dh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475197/normal_60111b3d3573b.pdfIn PDF document text
    • http://grinallex.shop/ionic_3_angular_4_tutorial3468o.pdfIn PDF document text
    • http://gayerkan.com/katazalujuxesncksm.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/fejakixoweka/amharic_film_script.pdfIn PDF document text
    • https://s3.amazonaws.com/jepavilutabilel/argentina_flag_hd_picture.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/mere_wala_sardar_punjabi_song_wapking.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/clash_royale_free_windows.pdfIn PDF document text
    • https://s3.amazonaws.com/sebunuzu/33529515793.pdfIn PDF document text
    • http://latilofu.rf.gd/autobiography_example.pdfIn PDF document text
    • https://s3.amazonaws.com/pomaxa/codility_test_answers_python.pdfIn PDF document text
    • http://fefezaw.rf.gd/borderlands_3_leveling_guide_amara.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxawetawupo/canon_eos_700d_instruction_manual.pdfIn PDF document text
    • http://sasugokomelu.rf.gd/best_business_case_studies.pdfIn PDF document text
    • http://google.cps.eduIn 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_off0000b5f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB5F4 4948 bytes
SHA-256: dfb1e8c115594990d26af9ac4c0729faaee29c499a9db9d6c07e23868ff0899f
font_01_sfnt_off0000c6b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6B0 9424 bytes
SHA-256: 596c4d908b4749c0d63ae567e1eebce8a8c9b4e0852a78dcd519640d4b41f100