Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7ffd8dbb3d8297d…

MALICIOUS

PDF

82.0 KB Created: 2021-03-29 01:50:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 69f5db3ac8a28ea877ce0be9c48df77f SHA-1: d9cee8cdb49ae075a8e9f2ef7ca68305e8c1c74e SHA-256: e7ffd8dbb3d8297dc0199b73b55999d6e1e627784e54500700833921b886eabd
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a URL that mimics a search result, likely to trick users into clicking it. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to malicious content or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jacksth.ru/wix?keyword=cookie+mining+lab+analysis+answers
    • http://varietystore.website/rode_ntk_vs_akg_c214rpm4o.pdf
    • http://winovigamaj.mygamesonline.org/wills_eye_philadelphia_broad_st.pdf
    • http://moitender.org/55810698843mzoy7.pdf
    • http://vilopeg.xyz/constant_velocity_worksheet_4wewp0.pdf
    • http://hayatevesigar.online/kenatoxufaso26dxb.pdf
    • http://reduslimitaly-ufficiale.site/fazetuwisagewurubideroripl73s.pdf
    • https://toposizijud.weebly.com/uploads/1/3/0/7/130776562/xuviraduvokepegotula.pdf
    • https://cdn.sqhk.co/fuvebopeweb/9BihYej/boy_s_20_inch_bmx_bike_mongoose.pdf
    • https://cdn.sqhk.co/kutupejotige/2hgX5eu/pebiluxozujagugu.pdf
    • https://wanovupejofo.weebly.com/uploads/1/3/4/5/134580977/tugaradasigu-jafewagi.pdf
    • https://dipakexamima.weebly.com/uploads/1/3/1/0/131069759/didorasulib-jedajilisobajav-bikonidoronud.pdf
    • http://siwivelijutore.medianewsonline.com/cheap_online_mixing_and_mastering_services.pdf
    • http://boothattendant.com/acer_xg270hu_calibration_settingssap8e.pdf
    • https://cdn.sqhk.co/fudikuzi/he3jhhi/survival_island_movie_online_free.pdf
    • https://cdn.sqhk.co/lekifuwixal/fEidge8/do_re_mi_sound_of_music_guitar_notes.pdf
    • http://xamojopilupivo.scienceontheweb.net/mary_balogh_chomikuj.pdf
    • http://tvoeobrazovanie.fun/account_form_4_bab_22j9aj.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://wejufutaz.onlinewebshop.net/how_to_run_java_web_application_on_localhost.pdf
    • https://s3.amazonaws.com/rebomedug/kiwejumoje.pdf
    • https://s3.amazonaws.com/ganubatebedoxez/11284093500.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000101c0.bin
94c299daea0339055c2d519753657652e7fdabe20967be8d39e2b25c35ead20e
pdf-font-stream PDF embedded font (sfnt) at offset 0x101C0 5308 bytes
font_01_sfnt_off000113cf.bin
029920c52228da7d2913bf85932edae8af5b20916e87db1a5d837c45cbc85230
pdf-font-stream PDF embedded font (sfnt) at offset 0x113CF 11416 bytes