Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0aea8fba8369453…

MALICIOUS

PDF

67.1 KB Created: 2020-11-20 04:26:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 7fbc353c2f36ace2eca71d0e5867669f SHA-1: d48ae6e0af777773da4e14da460a0f1139c9ee54 SHA-256: e0aea8fba83694536b775640193f3f445d1a92ee2b1377daa3648650d4bd87ab
154 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 routes users through malicious redirector infrastructure. 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://traffmen.ru/123?utm_term=to+and+too+mean In PDF document text
    • https://cdn-cms.f-static.net/uploads/4370077/normal_5f884c3de66c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413835/normal_5f9978d7ec7f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407780/normal_5fa5ab2bc16e6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/timafatafej/minecraft_slippery_blocks_mod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/537cf8d9-f811-40f8-908f-d7ef4e1eb0e6/wowututewivuvaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/743cb67b-a09c-4eeb-87c8-8773dc604369/59221221717.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b4994b6-e376-4b5b-bcdd-bb937c6dc22b/essay_about_myself_sample.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd1affe0-1451-4195-b490-6a3d836435bd/18235079956.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67a686c9-b096-459a-86e3-98b2e2786e84/survival_in_auschwitz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2112ca0a-bf56-409e-8cc6-9425a01358cd/34596240049.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2bb7634-2278-4b3d-9be6-3a543dca1a18/3946196000.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6f4eacb-2702-4732-94fb-0b91a20ea773/59811541507.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/470a0079-d95f-4e8a-a8c6-93dac28a9b0d/skyrim_vr_tweak_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tesotiwapax/super_smash_bros_melee_unlockables_gamecube.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a8c861a-a888-4f7f-b8d7-65ac8b358645/20146418447.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 2

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cda8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDA8 4612 bytes
SHA-256: 471c4a8a3e0860cdf5907be916bac6e30cae51fe2f5b9e05e829b96d248b7a85
font_01_sfnt_off0000dd45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD45 10132 bytes
SHA-256: 3851664b4d8163be8c1d6363b8165c22c461d4a251fec8e558250cb57de3a2fd

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