Malicious PDF — malware analysis report

Static analysis result for SHA-256 5554217b39168ae4…

MALICIOUS

PDF

85.9 KB Created: 2021-03-17 16:47:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 366d588154c4859277a9fc0bef9b4c5d SHA-1: d6468e88f9dd3c0285bc01a72e2f6bcb97368ef9 SHA-256: 5554217b39168ae44353da5c3026feb3117503b37859ebb0ee4cd67a916b98f3
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing campaign. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the presence of external URLs strongly suggests an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9919

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://botokaw.ru/wix?keyword=kedamono+x+popee+lemon
    • http://gapagal.mywebcommunity.org/mariage_d_amour_score.pdf
    • https://cdn.sqhk.co/lululitoj/hg67zgh/kukideweb.pdf
    • http://nafarami.medianewsonline.com/17214515472.pdf
    • http://muzesumulel.getenjoyment.net/arihant_biology_books_free_download_class_12.pdf
    • http://beguwidip.scienceontheweb.net/lural.pdf
    • http://fogafiv.mypressonline.com/garuv.pdf
    • https://cdn.sqhk.co/dawolesirip/2jc8Jhj/53397497413.pdf
    • https://cdn.sqhk.co/bexikerez/sjhheFM/30004389412.pdf
    • http://gupupokuvugal.22web.org/how_to_get_a_chauffeur_license.pdf
    • https://cdn.sqhk.co/dowepigakaw/cyjbggi/download_game_kingdom_medieval_mod_apk_versi_terbaru.pdf
    • https://static.s123-cdn-static.com/uploads/4374860/normal_5ff9d0cf181db.pdf
    • https://static.s123-cdn-static.com/uploads/4494875/normal_5fe0321854bea.pdf
    • https://static.s123-cdn-static.com/uploads/4467927/normal_5fdfb7a6bce40.pdf
    • http://juxowupekabaf.mygamesonline.org/bizikamokozovuxubimajakan.pdf
    • http://paselon.getenjoyment.net/jozareteloguxu.pdf
    • https://cdn-cms.f-static.net/uploads/4424029/normal_600a902173b05.pdf
    • https://cdn.sqhk.co/pasivuzuke/gEODZOX/17033453127.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://vujupedalu.epizy.com/nonviolent_communication_synonym.pdf
    • https://uploads.strikinglycdn.com/files/81742676-3f0f-4053-a7c6-bbd03a4154f8/14418473718.pdf
    • https://uploads.strikinglycdn.com/files/044041e5-0ae7-47e8-bccb-697a18fa5fca/datebogumirulusaku.pdf
    • http://zejufewap.rf.gd/ratimoxiwome.pdf
    • https://uploads.strikinglycdn.com/files/5061607c-f236-4387-b426-6cc1ff38ef84/jezemu.pdf
    • https://uploads.strikinglycdn.com/files/42efe1ac-0cb4-4d05-af9b-5e6028d10e8e/laboratory_manual_in_physical_geology_9th_edition_answer_key.pdf
    • http://pudugivifo.myartsonline.com/bratislava_transport_map.pdf
    • http://xipobibupo.epizy.com/power_amplifiers_nptel.pdf
    • https://uploads.strikinglycdn.com/files/95654fa3-9c0b-407f-a505-90db2d08ea41/basic_hindi_vocabulary.pdf
    • http://xujided.onlinewebshop.net/buwaxuwusixu.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/
    • https://savannah.gnu.org/projects/freefont/
    • http://www.gnu.org/licenses/
    • http://www.gnu.org/copyleft/gpl.html
    • http://scripts.sil.org/OFL

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f153.bin
7938ec877090d4d8924da6e643943bfd74bda31639bd4865f01e2bef0c4df1a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF153 7900 bytes
font_01_sfnt_off000105f8.bin
2d956356bbeba4124be6ca0c044b07c1b608e2bb1d684268fe6fe5143c4d121e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x105F8 4032 bytes
font_02_sfnt_off00011456.bin
9ca2672b46af0d63cde0765fa311a6ff9965372a3dfe63c247096190b29a6001		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11456 4868 bytes
font_03_sfnt_off000124dd.bin
5086340b5fea21102092fa2b48b8bfdcb7446d80c706ce459b076905ed30001b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x124DD 11212 bytes

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