Malicious PDF — malware analysis report

Static analysis result for SHA-256 001d905415a4963b…

MALICIOUS

PDF

70.5 KB Created: 2021-05-10 21:53:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: d4de862be9c993c4762240f1a2cd94e8 SHA-1: e3ef18eea4a46a71b619dd65c6d9069e38f09695 SHA-256: 001d905415a4963beb2a596e155cb84fa94ef5f0b701e1cfd2b1f69b6c52ca7e
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely used to deliver a secondary payload or redirect the user to a phishing site. The document body, though heavily corrupted, contains text related to a product, suggesting a lure to disguise the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://botokaw.ru/strik?utm_term=baby+bjorn+bouncer+pink+jersey PDF link annotation
    • http://toxipoxekej.medianewsonline.com/doxulukepewilukifoxuxobid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417128/normal_602c075a6d91b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454163/normal_5fc6f2ce21d5f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417413/normal_601a2fca1c4aa.pdfIn PDF document text
    • http://loneresel.mygamesonline.org/hamilton_beach_countertop_convection__rotisserie_oven.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467561/normal_605328bcbfd6b.pdfIn PDF document text
    • http://likefetevu.getenjoyment.net/1266063957.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4526930/normal_600e620cb3f26.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473651/normal_6054559814ba1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382617/normal_6038520c00b89.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393639/normal_6064d485a6ee5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369191/normal_5ffcb06479291.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406776/normal_601c5e60e48f6.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/cecd783c-39e2-4508-b097-90aeab5bdfba/pema_chodron_guided_meditation_audio.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c25e2603-53d6-4316-8fe0-a6f544f5a955/23770267481.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9e9506f-06d5-4824-ae2d-70dc8a2a91f1/will_a_humidifier_help_a_congested_baby.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bbd923ce-53bc-450e-b6b2-1effe33e6e3a/51361026342.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87214e8a-d25a-48f8-bf58-7ffe4e1bd6a7/what_does_ka_mean_on_a_cobra_radar_detector.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc5b13e8-2928-49f1-a1e6-a32556c1aa9d/welonubezof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6102419d-6a66-4cf1-bde2-952f9e65c7d8/48996538578.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/214233f7-ec4c-4e9e-ab36-fd968ce05409/momugumagowemitivijudu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84532e5f-8843-4c8f-82c0-ad81e1a246b8/best_price_braun_9_series.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f39f5b3-85f8-4294-bb42-3c0716458cec/can_you_keep_a_secret_movie_2019_release_date.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_off0000d62c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD62C 5324 bytes
SHA-256: f1c093332a67f58a7ce1204f5ae049c9283215ae38850542977a8a1978f4e1b3
font_01_sfnt_off0000e865.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE865 10620 bytes
SHA-256: d556a5fa13984afed92979054014bf9d812c3e57db3e8bc09571979a1190180e

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