Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0206676c48591be…

MALICIOUS

PDF

77.8 KB Created: 2021-03-16 02:28:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 8cad8583e46689f173e65204570181bf SHA-1: a416acb05179be94037ab307fc2bcba90ada955d SHA-256: e0206676c48591be2fcf70b01278f476283c06c22e01be25707c45d4fc33c05c
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV. It contains an embedded URI pointing to a suspicious domain, mezovuduw.ru, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains text related to 'ehi opener without root', suggesting a lure to trick users into visiting the malicious URL.

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://mezovuduw.ru/wix?keyword=ehi+opener+without+root PDF link annotation
    • https://cdn.sqhk.co/wixefawoz/jthchgc/factory_incident_band.pdfIn PDF document text
    • https://cdn.sqhk.co/vijukifezu/b9jdoCn/povukuvabuxupibewovaket.pdfIn PDF document text
    • https://cdn.sqhk.co/zowonefaso/Cgigfhd/14362079212.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/cf6cf0a8-7a5a-4f1b-8c47-8b7a65b412e1/95413209996.pdfIn PDF document text
    • https://s3.amazonaws.com/sevoga/54856040313.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3323c1dd-80ca-43e1-90c3-80dd66f08a0e/12283886826.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/5839156197.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/79619774978.pdfIn PDF document text
    • https://s3.amazonaws.com/vufupu/zalewasavav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c477b0ec-90d8-4752-b398-aa894458fd3d/10735638618.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18351be8-333f-4184-b3e2-9d2bc53b0ca9/kulonubamu.pdfIn PDF document text
    • https://s3.amazonaws.com/somamere/android_webview_alternative.pdfIn PDF document text
    • https://s3.amazonaws.com/xomudufe/bosch_classixx_dishwasher_repair_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/jazuravazaguz/murif.pdfIn PDF document text
    • https://s3.amazonaws.com/zufojadibi/work_rules_laszlo_bock_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/wiremeresegikon/bloody_roar_for_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7395d87-46d0-46a1-8cf2-82cbfe43814b/how_to_drain_lg_direct_drive_dishwasher.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46b40c3c-d103-4017-8a01-c0e317b50937/dopidodovasixegufu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/337f5877-3adc-45c1-a411-890609b5e9aa/nodeva.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_off0000ecd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECD0 4536 bytes
SHA-256: f79e7c5670be60be28fba7fc54ff6279f1077fa6cd6053d4a6ec71e53656c3aa
font_01_sfnt_off0000fc3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC3F 2144 bytes
SHA-256: 29e65d27965e87bff98d49ac9da992c3660fe0b15a5e8502ddedb984937c1d31
font_02_sfnt_off000105fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105FE 10512 bytes
SHA-256: 0c2e8964f49bdbe00b91e606337f26a69ccf9c3b1c18a9a7972253550771160e

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