Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2ccab2e61bd8420…

MALICIOUS

PDF

71.9 KB Created: 2021-02-18 08:32:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 8fade72f365dca5f3ce3a36807be76b0 SHA-1: 3f8eb5090b10db71eb767b29e60262ef6b9f3bb4 SHA-256: c2ccab2e61bd84200f3cc7c2ae5d9b22a4ef5c1dae3b0f480ba9bb1c5b8d61a4
244 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a large number of external links, many pointing to disposable domains and redirectors, indicating a link farm designed to distribute malicious content or phish users. The ClamAV detection and ML classifier further support its malicious nature. The embedded URLs suggest an attempt to lure users to malicious sites, likely as part of a phishing campaign or to deliver further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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 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.
  • 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/123?utm_term=vermont+castings+resolute+acclaim+owners+manual In PDF document text
    • http://marketitaly.pro/busutededadxh3.pdfIn PDF document text
    • http://blognews.top/atomic_habits_bookqkdrc.pdfIn PDF document text
    • http://denizan.com/who_is_the_main_male_dancer_in_white_christmask8a8l.pdfIn PDF document text
    • https://fopepusev.weebly.com/uploads/1/3/1/3/131383694/9213357.pdfIn PDF document text
    • http://gufutaca1.xyz/pinball_game_music_video_waploadedvqhyi.pdfIn PDF document text
    • https://mebotorafegamor.weebly.com/uploads/1/3/0/7/130739377/1394458.pdfIn PDF document text
    • https://cdn.sqhk.co/karopepagu/JYhgQmd/sing_karaoke_online_download.pdfIn PDF document text
    • https://cdn.sqhk.co/govazofaj/bgi5iaC/73398756032.pdfIn PDF document text
    • https://vazonani.weebly.com/uploads/1/3/1/8/131871537/2598823.pdfIn PDF document text
    • https://vijotuwotula.weebly.com/uploads/1/3/0/7/130775401/3f2156974.pdfIn PDF document text
    • https://cdn.sqhk.co/mimufedu/Zuhh1ig/ragdoll_battle_simulator_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/letinumi/7DptOy5/72618263627.pdfIn PDF document text
    • https://duguzimelape.weebly.com/uploads/1/3/4/6/134666192/3918806.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408589/normal_60191ec30546f.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/xidazeze/annamayya_movie_audio_songs_naa_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/itunes_atualizado_32_bits.pdfIn PDF document text
    • https://s3.amazonaws.com/fikuvine/c_o_full_form_in_telugu.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_off0000d827.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD827 5176 bytes
SHA-256: be98bbb52f65e9675602d49d9e8f34ff925db327418bdfea709386465a5650e9
font_01_sfnt_off0000e9be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9BE 11488 bytes
SHA-256: 18b6c670b278ed86aae48cf5d8dbe19972992d54a4a1b2317b8922b0318076d6

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