Malicious PDF — malware analysis report

Static analysis result for SHA-256 aeafbd6dc07118bc…

MALICIOUS

PDF

88.2 KB Created: 2021-03-25 04:30:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: dbd0ef5e0272106f423d9b20b42f7941 SHA-1: 17e1e9a0c00154f6259ecd8b5ffebf6b53ff0aa0 SHA-256: aeafbd6dc07118bc6db6074c8a35b7fc92a4c16e6f946fd16ccb2e39abb556f3
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 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jumiwimov.ru/strik?utm_term=what+is+a+quadratic+equation+simple+definition PDF link annotation
    • http://dizurexemubegog.mygamesonline.org/kakunesokigogeku.pdfIn PDF document text
    • https://cdn.sqhk.co/xavaxonad/BuhaTij/28771946338.pdfIn PDF document text
    • http://lukufogud.getenjoyment.net/macmillan_dictionary_of_collocations.pdfIn PDF document text
    • https://cdn.sqhk.co/fezifoxunif/jjbiigi/41235568095.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/8669d98f-b934-4fec-801c-fecad5ad74b8/xuvapinakuburefojowinibe.pdfIn PDF document text
    • https://s3.amazonaws.com/somamere/kiwolivunij.pdfIn PDF document text
    • https://s3.amazonaws.com/senodiw/danusibowobuxidubobopas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7c5ecb0-f27f-4753-8120-358287483d41/rabud.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/borusapiwavawodexuxeji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c2d2670-b3a9-4a75-8e31-57abf460310b/gotiduwexijukudovif.pdfIn PDF document text
    • https://s3.amazonaws.com/feliso/57252576686.pdfIn PDF document text
    • https://s3.amazonaws.com/pujinit/66466108315.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/881e4531-ccae-432e-8705-c48b260c9e8a/the_man_in_the_high_castle_season_2_episode_3_cast.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ed05deb-9654-4c22-92e8-73779ae9b4ac/31714240217.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b53602a-c062-4b77-9252-bf5edb984604/vuwutitujagi.pdfIn PDF document text
    • https://s3.amazonaws.com/lolijexejomak/what_does_monat_rejuveniqe_oil_do.pdfIn PDF document text
    • https://s3.amazonaws.com/wonumafubij/bose_remote_control_battery.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/178dcb1a-fd7d-4a87-ad2e-39bec7dd9329/how_to_replace_moto_g6_battery.pdfIn PDF document text
    • http://gidubabe.myartsonline.com/automation_studio_6._0_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7c5f941-c586-4ede-a2bd-14ad9d36142f/2427899791.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000119ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x119AE 5532 bytes
SHA-256: 3ace59b34f538ea0bd38c283b1622f6ce0d5aedd703e0add3e9f61de0ec086fd
font_01_sfnt_off00012c5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C5C 11768 bytes
SHA-256: a1c18700659852779901bfe44fd66bb54b11e1a9e648b863bb9602be6dbca019