Malicious PDF — malware analysis report

Static analysis result for SHA-256 26e07d8f900acf53…

MALICIOUS

PDF

70.5 KB Created: 2021-03-14 19:53:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 39ca788125a9fa374352569481df39af SHA-1: d9b6774210cf626a8ce0f192eafa270595855984 SHA-256: 26e07d8f900acf53ea7fc19540933a5a12c362da3036d09547ac81092591d2e5
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 'bologen.ru' which is likely part of a phishing campaign. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site, potentially 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://bologen.ru/wix?keyword=algebra+2+book+glencoe
    • https://cdn.sqhk.co/nukusigemug/NNBgchi/feditivoxur.pdf
    • https://cdn.sqhk.co/ragebobeb/z6jbigg/33162557994.pdf
    • https://cdn.sqhk.co/balaragu/iUthtIZ/sagopuvoxexifufamunuz.pdf
    • https://cdn.sqhk.co/jojikoxazew/Xgdgehh/34707458109.pdf
    • http://vipadobotisituz.mygamesonline.org/desikiduf.pdf
    • https://cdn.sqhk.co/mosugukasiba/mjficjh/project_management_tools_excel.pdf
    • https://cdn.sqhk.co/remimidotomi/Ziit4jd/dunijonotajajimiretixuj.pdf
    • https://cdn.sqhk.co/lojibuwe/iXyWhh4/turbo_dismount_2_gameflare.pdf
    • https://cdn.sqhk.co/nawafoxobok/dOhikib/amazon_echo_dot_2nd_generation_argos.pdf
    • https://cdn.sqhk.co/gukawaki/cjengdK/bipazurisulofafasosixi.pdf
    • http://yazansoft.com/free_robux_counter_20208dza5.pdf
    • http://samyog.ru/dot_net_framework_3._5_filehippo3whku.pdf
    • https://cdn.sqhk.co/vesagivara/iiiiChh/47399551747.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://gegenig.epizy.com/sing_sing_sing_clarinet_solo_sheet_music.pdf
    • http://zolefajomiwa.rf.gd/emerald_tablet_of_hermes_trismegistus.pdf
    • http://mifajep.rf.gd/angielski_dla_poczatkujacych.pdf
    • http://bifovigavij.myartsonline.com/honeywell_smart_thermostat_not_working.pdf
    • http://gadufilipi.epizy.com/adt_key_fob_panic_button.pdf
    • http://vowojuxibaxo.myartsonline.com/15750279137.pdf
    • http://lumosaneja.onlinewebshop.net/wawema.pdf
    • http://sazasewugekupej.onlinewebshop.net/how_to_replace_samsung_galaxy_tab_s2_screen.pdf
    • http://xumasadepa.epizy.com/dupedumimuriper.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_off0000d3c3.bin
e9c8df8e08966c12adca0e041ec16f04f069ab50cf202a752cf4650c559ca725
pdf-font-stream PDF embedded font (sfnt) at offset 0xD3C3 5116 bytes
font_01_sfnt_off0000e542.bin
8092179b541616c603e329eb0ae3685185d5b3a553909967b40ddebfa55e08a5
pdf-font-stream PDF embedded font (sfnt) at offset 0xE542 11332 bytes