Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e9cf4e322de4ea6…

MALICIOUS

PDF

64.1 KB Created: 2021-02-24 03:12:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6a7528390e94e4008174aed5d92b31c8 SHA-1: e871f2195e7cff5399db002e8711d0bbcca0f840 SHA-256: 3e9cf4e322de4ea62bfbcbdbc0714b007baf8eac1166fee25a822bee1ef1c3e2
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=lucio+gasparetti+south+holland+bakery+supply+crete+il+60417 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4450158/normal_6019ce25a9928.pdfIn PDF document text
    • https://cdn.sqhk.co/dukoredod/hjidicj/monster_shooter_2.pdfIn PDF document text
    • http://lexidubug.22web.org/pirates_caribbean_easy_piano_sheet_music_free.pdfIn PDF document text
    • https://cdn.sqhk.co/xamitarerivu/fvqhggg/otherworld_legends_apk_obb.pdfIn PDF document text
    • https://bewanabexujafo.weebly.com/uploads/1/3/6/0/136050633/belikibaxojiteku.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485826/normal_601b30c888f21.pdfIn PDF document text
    • https://vifaseberafu.weebly.com/uploads/1/3/0/9/130969816/supumibogetefal-fepud.pdfIn PDF document text
    • https://towizitubozabo.weebly.com/uploads/1/3/5/4/135400713/vekilup.pdfIn PDF document text
    • https://cdn.sqhk.co/muxaferamet/gjH0ieW/lezatoruwafilobomana.pdfIn PDF document text
    • https://difanewoxapazu.weebly.com/uploads/1/3/5/3/135321324/favob-lezev-rozusa-kuxos.pdfIn PDF document text
    • http://marketitaly.info/3097542422002xb4.pdfIn PDF document text
    • http://dkblogin-de.com/88585330967qrzp3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413983/normal_60001254a53d4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fipiwafupogo.epizy.com/wow_inscription_guide_legion.pdfIn PDF document text
    • http://zufonokimilije.epizy.com/62557026075.pdfIn PDF document text
    • https://s3.amazonaws.com/zedilegol/zepexegel.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzakifezara/bahubali_2_film_tamilrockers.pdfIn PDF document text
    • https://s3.amazonaws.com/xeropizuwe/channa_mereya_punjabi_movie_song_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/jevelel/xoveregugamudepune.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/2177161044.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_off0000bd68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD68 6096 bytes
SHA-256: 38c74821ab7b7d7176e27cb070403797f57fb7031bde4a2555f1346595cd482d
font_01_sfnt_off0000d240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD240 9496 bytes
SHA-256: 32b8f265fdc9d855448db78f5645a5358d58e4fbe3ec9761607343ce16d1ddb4

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