Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e45a35f69967ea4…

MALICIOUS

PDF

77.8 KB Created: 2021-03-16 15:43:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 963b4c070a396bab7fadebc8ef18981c SHA-1: 965d088d6a7837d42a0800f7efea2dbe6c61c9e2 SHA-256: 2e45a35f69967ea471adc86a1a4c302aaa923c5b514818da3fbf5771721603e0
96 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that attempts to lure the user to a website disguised as a product review. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or further malware delivery.

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://druttle.ru/wix?keyword=nikon+d60+dslr+review
    • http://uber-global.com/what_are_the_effective_communication_techniquesaykn0.pdf
    • https://cdn.sqhk.co/vafegijateno/eDthgjj/carnival_cruise_ship_stock_prices.pdf
    • http://organize.shop/ghost_s1_tophat_manualslsgl.pdf
    • https://cdn.sqhk.co/jedugifaxido/be80hau/margaritas_mexican_restaurant_lansdale_pa.pdf
    • http://english-10.site/3d_driving_class_mod_apk_unlocked_all_carsffczd.pdf
    • http://winclean-sale.shop/920755578277qza5.pdf
    • http://abreudesigns.com/anets_sdr_21_partscd4lt.pdf
    • http://vashastrahovka24.ru/woxavisagawezivowukiwrt8gw.pdf
    • http://dektesheff.xyz/free_streaming_music_services_online294hh.pdf
    • http://andyhongdigital.com/76023963888dpvaz.pdf
    • https://cdn.sqhk.co/tusenepobam/zZgcjdc/wifi_software_download_for_pc.pdf
    • http://xasumemazekejo.scienceontheweb.net/maxi_cosi_pria_85_installation_instructions.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://miwewugewu.atwebpages.com/xuzekaxalurewunikuxopum.pdf
    • https://883cd1dc-02d0-4059-8fa2-99201f92b631.filesusr.com/ugd/6166c9_178a0cb31a1a4687a61895afd870ef77.pdf?index=true
    • https://ca108e69-7b6b-43f0-8f16-d96ebeb8a33d.filesusr.com/ugd/79e0dc_1166e2b977a34d23a64e0205b97b90ab.pdf?index=true
    • https://cda84be5-0c54-4c05-8389-97bb004c798d.filesusr.com/ugd/fa9f00_ec845435ac3f455e8a14f7b72122c160.pdf?index=true
    • http://jedamonemazuj.epizy.com/test_on_nouns_verbs_adjectives_adverbs_pronouns.pdf
    • http://lebasadalo.epizy.com/instrumental_background_music_free_pagalworld.pdf
    • https://8e0cabef-d481-4215-b437-8a5fc4e4723c.filesusr.com/ugd/f41140_4059329c1cd448ecad95a03f61c86eea.pdf?index=true
    • 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_off0000f214.bin
f7bd252330a1d1f6d725c3c59bff1f62abff43839231d9f7a585ca07f1292e0c
pdf-font-stream PDF embedded font (sfnt) at offset 0xF214 5088 bytes
font_01_sfnt_off00010390.bin
fd0bdddb2bc6e371c033a4b7b842d18ee38bc92e8834c985702ce69d918184a2
pdf-font-stream PDF embedded font (sfnt) at offset 0x10390 10880 bytes