Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8415dfcd60426ea…

MALICIOUS

PDF

81.6 KB Created: 2021-03-08 20:51:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 60015a65ce612c000b67b06a65420052 SHA-1: 900a6f294ffad20162a745590a3b938653cf82d8 SHA-256: a8415dfcd60426ea62b24f8f752deeac88fdabf47d00f46850a0d2f49124b646
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ClamAV and an ML classifier, with high-confidence heuristics indicating it's a phishing lure disguised as an application form. The embedded URL `https://botokaw.ru/award?keyword=tan+application+form+pdf+fillable` is a key indicator of this phishing attempt. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it may contain embedded JavaScript for redirection or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://botokaw.ru/award?keyword=tan+application+form+pdf+fillable PDF link annotation
    • http://ccckkkkk.space/127674863401m6o1.pdfIn PDF document text
    • http://vabenawak.iblogger.org/48240824557.pdfIn PDF document text
    • http://muzesumulel.getenjoyment.net/similarities_and_differences_between_arteries_veins_and_capillaries.pdfIn PDF document text
    • http://ganitigusawev.mygamesonline.org/vicks_vaporizer_walmart.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368497/normal_600c9db472988.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450884/normal_5febeb763e7b8.pdfIn PDF document text
    • http://koolmaxt.online/kill_team_starter_set_2018_vs_2019x6l2n.pdfIn PDF document text
    • http://dalidusiz.mywebcommunity.org/gaguladi.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://3794eb9c-cc8b-492c-aecc-44533f76aaa6.filesusr.com/ugd/1ee69b_4937e3cc082e40528aa2111bf5151812.pdf?index=trueIn PDF document text
    • http://nukivamo.myartsonline.com/subject_verb_agreement_worksheets_with_answers_7th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/kukupunopedon/palimpsest_catherynne_m_valente.pdfIn PDF document text
    • http://zibelasavu.atwebpages.com/bhaja_govindam_song_lyrics_in_telugu.pdfIn PDF document text
    • https://s3.amazonaws.com/jinotugiwomo/one_piece_dance_battle.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/cisco_catalyst_2960-_s_series_poe_manual.pdfIn PDF document text
    • https://78fa80b2-8629-447b-ad63-53e91e8d4948.filesusr.com/ugd/8f02de_71d1596a3c0243cf85e6cbb157005cf8.pdf?index=trueIn PDF document text
    • https://80b2a579-f9ed-4aa0-b91a-ac3c8973c086.filesusr.com/ugd/353d00_695c15f3c5dd4a42a478f32a60123ddf.pdf?index=trueIn PDF document text
    • http://fuvogixus.epizy.com/diteroxikixolotewu.pdfIn PDF document text
    • https://s3.amazonaws.com/xumakomowi/kanibunezuvavideki.pdfIn PDF document text
    • https://d102a0f2-001f-4998-bb0a-88ac30ac05b5.filesusr.com/ugd/771ea4_d7ee2d1fdc6243bab76d7900852c8b81.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lupuvogotog/30409064177.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://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e6a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A7 5000 bytes
SHA-256: 40b9ab5e8d98519cdab7785d506a142cef3366b75573fd7fcba91d9c42771234
font_01_sfnt_off0000f77d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF77D 10300 bytes
SHA-256: 12f51384f174acd912aff38dde78d644bfa57770c0b13031c3f5a704185c24ce
font_02_sfnt_off00011af8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11AF8 16220 bytes
SHA-256: 4980ae85178273421ba903ec79d0a347491d9c04d3d0bc45a275e5d9d61909f4
font_03_sfnt_off00013055.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13055 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333