Malicious PDF — malware analysis report

Static analysis result for SHA-256 bddcff640317d49b…

MALICIOUS

PDF

70.4 KB Created: 2021-02-24 17:02:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: cdeb99f08cbef1db07d5a661c9bfadd7 SHA-1: 20f6347e83377c88945da62b34608a96ecf64d79 SHA-256: bddcff640317d49b3d19bfb890e5f6d24f0dc6f4479fe6caf6fff67e6f852064
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/award?keyword=how+to+integrate+software PDF link annotation
    • https://cdn.sqhk.co/tufuboloruj/iehfUjd/competition_plus_tv.pdfIn PDF document text
    • https://lobavasato.weebly.com/uploads/1/3/1/4/131483685/1300882.pdfIn PDF document text
    • http://wotidoteked.mywebcommunity.org/fogodununejiwakexovox.pdfIn PDF document text
    • https://cdn.sqhk.co/sadetujadufi/0Whahap/fake_call_with_pizza_prank_lite.pdfIn PDF document text
    • https://cdn.sqhk.co/dubikureta/4ij8ibg/bugs_bunny_no_meme_blank.pdfIn PDF document text
    • http://nipokaxa.getenjoyment.net/serato_dj_lite_1.3_3_macos_installer.pdfIn PDF document text
    • https://pemogele.weebly.com/uploads/1/3/5/3/135324676/detagu_roxit_woravor_zifagomobes.pdfIn PDF document text
    • https://cdn.sqhk.co/pirujezexod/bdjafgc/jurassic_world_evolution_movie_trailer.pdfIn PDF document text
    • https://cdn.sqhk.co/bizujutenifo/MgfLgjV/crash_bandicoot_on_the_run_date_de_sortie.pdfIn PDF document text
    • https://fabuduviwanor.weebly.com/uploads/1/3/4/7/134739750/077c3.pdfIn PDF document text
    • https://datipozor.weebly.com/uploads/1/3/0/8/130813945/e38518d0c674b60.pdfIn PDF document text
    • https://zugozoriv.weebly.com/uploads/1/3/4/7/134770463/1472575.pdfIn PDF document text
    • https://cdn.sqhk.co/momujolo/joEjgrK/19682724286.pdfIn PDF document text
    • https://cdn.sqhk.co/sotatixorawi/chaijgj/zuma_deluxe_apk_old_version.pdfIn PDF document text
    • https://cdn.sqhk.co/vuwonesi/WQOTgn6/roxujizarobi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/dusined/bijuninuriwa.pdfIn PDF document text
    • https://s3.amazonaws.com/petubapizo/sinupun.pdfIn PDF document text
    • http://vejegaba.atwebpages.com/bosch_dishwasher_silence_plus_44_dba.pdfIn PDF document text
    • https://s3.amazonaws.com/kaxukok/infirmier_anesthsiste_formation_continue.pdfIn PDF document text
    • http://pusapovewazigu.onlinewebshop.net/how_to_be_a_better_husband_book.pdfIn PDF document text
    • https://s3.amazonaws.com/vasofirida/ubuntu_for_virtualbox.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cc0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC0E 4744 bytes
SHA-256: 27bfb0d423f8b86ba1433241a62fe0559833e89581284eb048a9731e08399b8f
font_01_sfnt_off0000dc44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC44 10036 bytes
SHA-256: 5047b4cf712c1122b4bcd3f64b48fba4e631ba2f2a6e54ca617655db8f12bd72
font_02_sfnt_off0000fe67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE67 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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