Malicious PDF — malware analysis report

Static analysis result for SHA-256 7405428c389bd2e9…

MALICIOUS

PDF

76.5 KB Created: 2021-05-10 03:45:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a9ac10f28453cb50a8dd8ad78bfcfc06 SHA-1: b1d6d9de3e32db25f1015ec5ae01752a4ca894e1 SHA-256: 7405428c389bd2e954f62d2190636c0bd320a03223058451264a5053fe06611b
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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://jacksth.ru/strik?utm_term=how+to+program+dish+joey+remote+to+vizio+tv PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4420743/normal_600b31e7b04cb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369760/normal_603f0136aad9a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468294/normal_602867b8b3802.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463298/normal_6016c1ae3bf43.pdfIn PDF document text
    • http://lonotel.mygamesonline.org/vuvabeb.pdfIn PDF document text
    • http://zefutuwukeras.getenjoyment.net/application_of_differential_equation_in_computer_science.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412895/normal_6054c7d8c59b7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403936/normal_6038369f1e112.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393349/normal_5fd190073fc56.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
    • https://uploads.strikinglycdn.com/files/723c82ab-88b7-4689-a23f-00cc984d0544/what_intermolecular_force_is_strongest.pdfIn PDF document text
    • http://sabiwilurase.atwebpages.com/bepitezek.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/17620077697.pdfIn PDF document text
    • https://s3.amazonaws.com/zomuzigo/97682220179.pdfIn PDF document text
    • https://s3.amazonaws.com/juwofuxufijup/projekt_1065_chapter_1_summary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae0ad8c6-54f9-4936-a4b1-7252fb99349e/phone_number_for_child_support_enforcement_in_virginia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b81bc50-0cdc-4d2a-84de-c49b4b9e2f16/80084725171.pdfIn PDF document text
    • https://s3.amazonaws.com/dudigonifu/jujemesibe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2886d18a-1552-4787-8d09-24927e3578e2/when_god_is_the_center_of_your_life.pdfIn PDF document text
    • http://muvipej.atwebpages.com/42745652391.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e0e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0E6 5364 bytes
SHA-256: 38b18526097967646481e3b1164077cc66ee2ecd48aeff45906e3a1971a51c3e
font_01_sfnt_off0000f34a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF34A 10268 bytes
SHA-256: a152b40b6ec7ad58035b6380d6c0d5af755e84ee75f20bcbb468514b2a70d968
font_02_sfnt_off00011684.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11684 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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