Malicious PDF — malware analysis report

Static analysis result for SHA-256 222d57ae25c3fbc3…

MALICIOUS

PDF

46.2 KB Created: 2020-11-04 22:27:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: acaf4f68c619cc0b0667098396ac12a6 SHA-1: df9544bd7659fb469bc39b74ec6d625aaf832878 SHA-256: 222d57ae25c3fbc318d78c75ee1255b5cad64e082f92068961c49a249b873a64
94 Risk Score

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=brian+hartman+pfc In PDF document text
    • https://cdn-cms.f-static.net/uploads/4384650/normal_5f8c4dca72989.pdfIn PDF document text
    • https://xavoxoxuda.weebly.com/uploads/1/3/1/3/131379246/toxerivaled-suwakege-mofej-xetemuxaf.pdfIn PDF document text
    • https://rajaxamakato.weebly.com/uploads/1/3/2/3/132302926/miwowufamurid.pdfIn PDF document text
    • https://gixapogaruxa.weebly.com/uploads/1/3/4/3/134331356/dasozobura_pixujigini_pibutas.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/fexazuvogajokover.pdfIn PDF document text
    • https://fewevivib.weebly.com/uploads/1/3/0/8/130813821/sopaxoduwojorojobu.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/a384d558-8b34-4152-99ce-27efc6260b91/makamarimonavekoso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1fac123-fbcf-4c65-86fc-fa7a90effa04/58034165721.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/117e297b-22de-4a87-ba33-f3efc8e60bd2/sotuxejeturigopato.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42816393-4f4c-48ba-ac36-ad95dcfbe51f/61026218802.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/519a1093-f514-4d70-a90d-ceda930b567d/mafefexisoti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0fc8fbf6-68be-4c03-a96f-22d5d9ba5e62/mercruiser_service_manual_17.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b0c1a32-08c2-4a98-be92-fd186213c209/wawotupogomuzexejagumaxa.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_off000078f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78F3 5092 bytes
SHA-256: b4f253b084d4183a1ddade38afc1f85154c46af3d5e2a6855e8d205c9f5c7130
font_01_sfnt_off00008a1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A1D 10120 bytes
SHA-256: fb1c74f8f185fb2bc441e0ae9189bda6329b31faaa40be8e435c2da04c902541