Malicious PDF — malware analysis report

Static analysis result for SHA-256 a45bdf6d34ea9d8a…

MALICIOUS

PDF

113.0 KB Created: 2021-02-16 07:12:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 8b691df83acb8316eb828e520d127367 SHA-1: 1232a1e3b8c3ac1efba6c120169783d7f2cef8b7 SHA-256: a45bdf6d34ea9d8a2533aa7abbbe4d7f92924cc2ad575e23e95e9fedda5c2823
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-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://seumenha.ru/123?utm_term=is+domino+pizza+vegan PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4377912/normal_60161995d30c9.pdfIn PDF document text
    • http://godisibipuvam.22web.org/aripiprazole_dosage_form.pdfIn PDF document text
    • http://movigakamemik.22web.org/96286822101.pdfIn PDF document text
    • http://gagafelame.22web.org/sibamafadumadakozuses.pdfIn PDF document text
    • http://babomuniv.22web.org/veporowigeveduxonivewil.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://vepuziv.epizy.com/pudebepokumi.pdfIn PDF document text
    • https://s3.amazonaws.com/lerezazo/camera_test_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/mixanaz/bullizmi_ne_shqiperi.pdfIn PDF document text
    • https://s3.amazonaws.com/tikoweravisixu/chrome_update_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/bofake/damenuregovo.pdfIn PDF document text
    • http://ferurexage.epizy.com/jukokaruvutazadixirofugu.pdfIn PDF document text
    • https://s3.amazonaws.com/widuxade/zoginum.pdfIn PDF document text
    • https://s3.amazonaws.com/wovigebi/badakiniwitizoj.pdfIn PDF document text
    • http://siwojanapav.epizy.com/talking_tom_game_apkpure.pdfIn PDF document text
    • http://nobegik.rf.gd/pifokoxi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000170b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x170B3 4904 bytes
SHA-256: 159c8073a208c9465d4c6ce815b0c2a7578e510389438f5566f2e748ada36d31
font_01_sfnt_off0001814f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1814F 11616 bytes
SHA-256: 4451df392d11440d8a19e597bbcd1a2579e226c8abcd68c8371ebbc3464dfde0
font_02_sfnt_off0001a8e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A8E5 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e