Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d7e0f05a038d9d3…

MALICIOUS

PDF

42.7 KB Created: 2020-11-05 00:51:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: aee92c338d264a2b708372d1a8fe1783 SHA-1: 2a0885590a6e16f5a738e825758a38c7e92e8874 SHA-256: 1d7e0f05a038d9d35d5610f52aec4479b523ebe0028d00cc142397ebc8825803
94 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 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 1.0000

Heuristics 3

  • 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://ggtraff.ru/strik?keyword=find+the+area+of+the+shaded+region+shown In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366646/normal_5f8735db95264.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410985/normal_5fa0a6be8578d.pdfIn PDF document text
    • https://zuzagidebosoxe.weebly.com/uploads/1/3/4/3/134391670/2138295.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421776/normal_5fa19c1c51d4b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392237/normal_5f8f8b4cb5374.pdfIn PDF document text
    • https://nobinetezo.weebly.com/uploads/1/3/0/9/130969761/xoteramerosikaja.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/8231efde-5389-40f9-bd4f-6ec0009c4c8b/3746992129.pdfIn PDF document text
    • https://s3.amazonaws.com/xamapebonijos/ap_world_history_unit_4_study_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f495769c-7509-4818-91ca-8f83ba5194b4/59320594951.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbd4723d-9996-4620-821f-8212bc14dd8d/valkyrie_drive_bhikkhuni.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fc9eff8-15e1-4849-89a5-ef6627edfa9c/welcome_to_camp_nightmare_goosebumps.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e62906d-f491-46a0-bd51-d1c0ee03445e/19201417915.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a71eae47-6e86-4a81-9d3b-077baea6d295/pidowugozufewezakuved.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/35248988683.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000047be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47BE 2900 bytes
SHA-256: a28fcc4ba65d8171a55e8b87d646ac5d1dd213f66ab2b0026fd39e5ca5d32d1a
font_01_sfnt_off00005200.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5200 5184 bytes
SHA-256: 040d306e18539a147962d114e368ad458275f75b6d218889df36dad128130716
font_02_sfnt_off000063b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B4 10636 bytes
SHA-256: 023ee9b9e28a35ba4265d83cd3f5ec7103a341ae182b8cf9a12963ac5a727cfe
font_03_sfnt_off00008806.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8806 16152 bytes
SHA-256: 33244761dd26184cc45e804f625a7373fc7b1bf6c61cefab7649c9725e879285

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