Malicious PDF — malware analysis report

Static analysis result for SHA-256 204d1ee5ef9fe46c…

MALICIOUS

PDF

73.1 KB Created: 2021-06-01 17:54:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c9f016a0cbacb23ad2fb4d015da6486c SHA-1: 750316ddc6449a21e512cdfe73cd090bb19ff011 SHA-256: 204d1ee5ef9fe46c4cf3ceb82804b4212fc70531e1fdf918a14ded2b8edf0a77
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain. Heuristics indicate it's a phishing attempt, and the ML classifier strongly flagged it as malicious. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent, likely leading to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://wastran.ru/pbw?utm_term=imf+world+economic+outlook+database+2021
    • https://samibogamo.weebly.com/uploads/1/3/4/8/134883552/jumusefo.pdf
    • https://gorenusedom.weebly.com/uploads/1/3/5/3/135326887/mukaxusuvesudo.pdf
    • https://wopamogifit.weebly.com/uploads/1/3/4/3/134341426/8135529.pdf
    • https://xuxurebero.weebly.com/uploads/1/3/4/6/134673100/190bc1fdd.pdf
    • https://kobafanosige.weebly.com/uploads/1/3/4/0/134016660/7171540.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zowonixepor.pbworks.com/w/file/fetch/144442521/download_game_gunship_battle_mod_apk_revdl.pdf
    • http://zewalar.pbworks.com/f/what_is_the_exposition_of_the_yellow_wallpaper.pdf
    • http://xedidovetaw.pbworks.com/w/file/fetch/144428016/xibagurarap.pdf
    • https://uploads.strikinglycdn.com/files/7bddc9d1-950f-4729-bbdd-a9a2a8f7919c/what_does_my_name_kinsley_mean.pdf
    • http://nunaruribeg.pbworks.com/w/file/fetch/144411717/98229552470.pdf
    • https://uploads.strikinglycdn.com/files/82774841-a0d8-4b28-a73e-291035fb8348/vixizakepafaneneki.pdf
    • https://uploads.strikinglycdn.com/files/de87d588-981d-412e-864b-ce71e7698394/listen_definition_synonyms_and_antonyms_of_philandering.pdf
    • http://bopelijexuf.pbworks.com/w/file/fetch/144449781/exercicios_efeito_doppler_resolvidos.pdf
    • http://wojipag.pbworks.com/f/13723566722.pdf
    • https://uploads.strikinglycdn.com/files/5db7f266-dbee-4dc4-8a36-7b4f95540983/6651656324.pdf
    • https://uploads.strikinglycdn.com/files/e9ad4b20-667a-432f-ac29-83e4f6070fd0/88938433976.pdf
    • http://pamotekegopa.pbworks.com/f/zibupogozubokex.pdf
    • http://poxanoralanu.pbworks.com/w/file/fetch/144427134/focusrite_scarlett_solo_3rd_gen_settings.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_off0000e00d.bin
498ca86b6e0237858d5707eb9908c4439baee75aba2349e2203ba24b3302c1bf
pdf-font-stream PDF embedded font (sfnt) at offset 0xE00D 5728 bytes
font_01_sfnt_off0000f38c.bin
b3e81186b3aefdcb358451f019498cf6693f477a5c62c9ef8b0c248a97eb6088
pdf-font-stream PDF embedded font (sfnt) at offset 0xF38C 10484 bytes