Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6db64d16602fa26…

MALICIOUS

PDF

47.6 KB Created: 2020-10-31 14:55:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: fbcab418af618979e690429a15ceaaa9 SHA-1: 11a778f3dcfad0d072614e9331fb808bf9abe490 SHA-256: e6db64d16602fa26413395c0c5134bf25416e214dbcd395d4de1af6944749bb9
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a critical heuristic firing indicating a malicious redirector link. The embedded URL `https://gettraff.ru/123?keyword=testament+the+gathering+album+cover` is directly associated with this finding. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to lure the user to a malicious site, aligning with spearphishing tactics.

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://gettraff.ru/123?keyword=testament+the+gathering+album+cover In PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/6023986.pdfIn PDF document text
    • https://foduzivanikatik.weebly.com/uploads/1/3/4/4/134492938/sulaxa.pdfIn PDF document text
    • https://dujenavu.weebly.com/uploads/1/3/4/3/134366251/texuxuvewi_texanaxuwiv_togunutu_kubizuwipoxavon.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://s3.amazonaws.com/jamokaroxoj/fofasomibopanipefo.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/somerset_county_jail_inmate_list.pdfIn PDF document text
    • https://s3.amazonaws.com/votawawo/62547696110.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ef16ea1-1684-41f4-bffe-d720f3b864d2/misigiligudomibuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/4295/8231/files/89591039657.pdfIn PDF document text
    • https://s3.amazonaws.com/nalifij/cambridge_igcse_geography_revision_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5341/5576/files/intel_xeon_e5620_price_in_pakistan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/7625/3375/files/9003182664.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f87168a-d098-406f-acf8-edfe7b49c223/k5_learning_cursive_writing_worksheets_alphabet.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_off00006d32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D32 5244 bytes
SHA-256: 3001536768d39b1bb35be2df84087dedf4740e913a7cf98c0c9fcfca791cff23
font_01_sfnt_off00007ed3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ED3 10752 bytes
SHA-256: d21826fb6cdab3c30169b25d15be99519f11b4991f5e3ac3195433adccaf8628
font_02_sfnt_off0000a3d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3D2 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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