Malicious PDF — malware analysis report

Static analysis result for SHA-256 09184f44645d9487…

MALICIOUS

PDF

47.5 KB Created: 2020-10-28 11:33:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 5512407e6f934b462ed9aeb14643d2f3 SHA-1: 247cc957610428058b2b374b04efbcb4fc395fb8 SHA-256: 09184f44645d9487830a627ab4bdd45de98a9c28d7c163ad0f1a68a60b4a785b
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://gettraff.ru/strik?keyword=what+is+bureaucracy+in+public+administration+pdf In PDF document text
    • https://funiwulew.weebly.com/uploads/1/3/2/8/132814073/7973492.pdfIn PDF document text
    • https://paxesejok.weebly.com/uploads/1/3/4/3/134348383/tetuwibo_wuvur_poxafod_kibonawukiwije.pdfIn PDF document text
    • https://tamagokevalagir.weebly.com/uploads/1/3/0/7/130776783/pukige_tiwixarotif_mulani_bimovone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405186/normal_5f988972df709.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369779/normal_5f9161899522f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376404/normal_5f89b92fde1ab.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/3012/1112/files/35130951872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/7622/6724/files/dd_3.5_gods_and_demigods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/8891/8724/files/english_tenses_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7700/0611/files/astral_deva_3.5.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b2fc2fe-d78c-438e-a5bf-1fad74e68168/wagetozut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e96f1a18-3251-463d-a668-332dd4710d4d/67631378329.pdfIn PDF document text
    • https://s3.amazonaws.com/vekodupiwarobi/dotamatiguxaz.pdfIn PDF document text
    • https://s3.amazonaws.com/mukut/zijewekiza.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/vekuwefe.pdfIn PDF document text
    • https://s3.amazonaws.com/jeworurowam/noxivudekoxuvitif.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/water_pollution_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/kudowo/electrocardiograma_infarto.pdfIn PDF document text
    • https://s3.amazonaws.com/ligole/josonewofonugotav.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_off00007b24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B24 5652 bytes
SHA-256: f66cc572d4da40171ae5bbc0610f053e0ec7d7d53c0a2743e15bc598a649b25a
font_01_sfnt_off00008e34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E34 9968 bytes
SHA-256: eecd5ae709333d7a0acc3f7322e2ac58e8be5a43f72e82ef4195ef4d0a084040