Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a15cd6160b52fff…

MALICIOUS

PDF

75.4 KB Created: 2021-03-15 23:10:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: eb657e241f67debb5ddbcdb6bec38e26 SHA-1: efa7b76db2c9a402296e112f2f2f7ba2bf0a7bd1 SHA-256: 0a15cd6160b52ffffec540cae4716801717684df08183cba49d6ffe3c6647334
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 numerous embedded URLs, one of which is directly referenced in the document's metadata and appears to be a lure for a Nissan Titan repair manual. The presence of these URLs suggests the document is designed to redirect users to malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://midufefew.ru/wix?keyword=nissan+titan+repair+manual+pdf
    • http://xagixowedobosab.medianewsonline.com/firebrand_cgeit.pdf
    • http://ketaton.mywebcommunity.org/votof.pdf
    • http://riniwodifole.medianewsonline.com/testy_czasy_angielskie.pdf
    • https://cdn.sqhk.co/pufowuvikij/lcQFhge/80196553168.pdf
    • http://lenuvivureropi.scienceontheweb.net/what_universal_remote_works_with_channel_master_dvr.pdf
    • http://fragcups.com/ludiwolupivikevudatu3p81b.pdf
    • http://sirunome.mypressonline.com/canon_6d_mark_2_manual.pdf
    • https://biziremidawa.weebly.com/uploads/1/3/5/3/135397591/4717766.pdf
    • https://vagewojevibo.weebly.com/uploads/1/3/4/8/134873572/1a2cd63.pdf
    • https://cdn.sqhk.co/bowazeduz/fHhgMyc/shreya_ghoshal_tamil_hit_songs_youtube.pdf
    • https://tesurupijirixu.weebly.com/uploads/1/3/0/8/130813669/7990710.pdf
    • http://gagitevanonuti.mywebcommunity.org/xetunejasete.pdf
    • http://mokemowowove.mygamesonline.org/annales_brevet_2020_maths_nathan_corrig.pdf
    • http://amsidisi.xyz/hayward_power_flo_lx_sp1580_series_replacement_pump_partsr7mvq.pdf
    • http://tumuduwaju.mypressonline.com/marantec_m55_homelink.pdf
    • https://ritipovilij.weebly.com/uploads/1/3/4/6/134650849/kewegaketota.pdf
    • https://cdn.sqhk.co/xanovika/yhgWYbk/cricket_megastar_mod_apk_android_1.pdf
    • https://cdn.sqhk.co/tategupet/aeL0Ogj/xogadesekofugeboru.pdf
    • http://lejunuzegakikuv.mypressonline.com/tilikoxafaw.pdf
    • http://jijoxep.getenjoyment.net/healthy_boundaries_worksheets.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://lamupimifuban.onlinewebshop.net/57104118997.pdf
    • http://nabulegewuwal.myartsonline.com/illustrated_russian_grammar_by_gotta_tsvetkov.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_off0000e89a.bin
f29a6a52e0a5b9b202505353510e5b806aa6cadfdbf8cf480a7845bc7caf2efc
pdf-font-stream PDF embedded font (sfnt) at offset 0xE89A 5156 bytes
font_01_sfnt_off0000fa13.bin
8d1ede285ec5e6730eff480f996da662ed9e3581107954aad15df2260c14b174
pdf-font-stream PDF embedded font (sfnt) at offset 0xFA13 10796 bytes