Malicious PDF — malware analysis report

Static analysis result for SHA-256 5534d0c7496ec932…

MALICIOUS

PDF

179.0 KB Created: 2021-03-07 22:57:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: c24d40e52f6aa10375ce890cbf69a90b SHA-1: 66dd7b44abba77b5d7de224dccdfbd8334fa9d82 SHA-256: 5534d0c7496ec93202b138a0537e7396c8c48838b14dcd4800dd8e561c2b9dbd
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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://gimoguvi.ru/strik?utm_term=surah+al+mulk+arabic+english+translation PDF link annotation
    • http://mozaduz.mygamesonline.org/mta_railroad_map.pdfIn PDF document text
    • https://cdn.sqhk.co/lepavenujal/hfhfjjb/44711201339.pdfIn PDF document text
    • http://fuckfrsky.com/32772586831savre.pdfIn PDF document text
    • https://cdn.sqhk.co/vawapisoxe/jbhiV4w/wufofogugelozuxitepovuwa.pdfIn PDF document text
    • https://cdn.sqhk.co/soredepel/kgfljeS/teruxim.pdfIn PDF document text
    • http://miwewumexurigan.sportsontheweb.net/what_is_a_conic_projection_in_geography.pdfIn PDF document text
    • http://wepisoja.mypressonline.com/what_is_the_argument_in_letter_from_birmingham_jail.pdfIn PDF document text
    • http://arfeshome.com/bujajenajuxomosusunuzujad28ed9.pdfIn PDF document text
    • http://copyrighytsupport.com/making_money_watching_tiktok_videos9g4x8.pdfIn PDF document text
    • http://moreprodukti.com/pdf_xchange_serial_keysgc13.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xovajukoxin/mubuduze.pdfIn PDF document text
    • https://s3.amazonaws.com/niporofez/nelozexilimupoxivifopadi.pdfIn PDF document text
    • https://4be8a7ba-6c9a-47a4-99fc-a5961b41a404.filesusr.com/ugd/132250_3776a6936b1241dea41f73c1c538d6fa.pdf?index=trueIn PDF document text
    • https://d497f082-4895-42de-a72c-038d9367c8a3.filesusr.com/ugd/8e727b_c702c34b96bf4533b83df062aebabe0e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/ligole/xowadanokefazafapok.pdfIn PDF document text
    • https://s3.amazonaws.com/povodijirig/87779965103.pdfIn PDF document text
    • https://s3.amazonaws.com/gotitibekovi/linear_equations_in_two_variables_worksheet.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off00028517.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x28517 32768 bytes
SHA-256: 86932c62147649761c7af59703afd370124ad23c8cd5d64cf2b9e6f8ee8f2b8b
font_00_sfnt_off00024458.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24458 1636 bytes
SHA-256: 8c3e96af02b08ba3443cc510220fb02f516919dde3a4996adad1dbfd8c88a3f9
font_01_sfnt_off00024c97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24C97 5520 bytes
SHA-256: 93373de21b1ae4649e24fab01fb4684b2d565dd1a3a803b4960016a370accad6
font_02_sfnt_off00025f2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25F2D 11204 bytes
SHA-256: c1ffed17dd7d9a81ef2a07a214d459d587fa79e9ec4613242fa4d9b6bcc2ff1c

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