Malicious PDF — malware analysis report

Static analysis result for SHA-256 580d9b696db205cc…

MALICIOUS

PDF

32.7 KB Created: 2020-11-06 20:16:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 2d4aa0122fd7b567e0e1193a41f79486 SHA-1: 0af8e1e356b6be6adeda1503db29dcc8f4171b7d SHA-256: 580d9b696db205cc2f72d9b1618cd6700e65dfa4b0d25b246923a8bca2940b65
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://traffmen.ru/aws?keyword=open+houses+in+corona+del+mar+ca In PDF document text
    • https://kugixixubeleji.weebly.com/uploads/1/3/4/3/134324677/f3c9b9460227.pdfIn PDF document text
    • https://firedisivimi.weebly.com/uploads/1/3/0/9/130969818/1039323.pdfIn PDF document text
    • https://buveziketi.weebly.com/uploads/1/3/1/3/131398526/fovubukoduved-mekur-vasazilivapuxok-bavukatajimoje.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380531/normal_5f920eb08d0a3.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/webipejonavuv/bufomezogofarisafin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59014b6b-418b-4f84-949b-2ef8d43cb0fe/22536168389.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb1acfb4-5212-443a-bbb7-15b40b7b96ec/tikexelemafukexizol.pdfIn PDF document text
    • https://teviwuder.files.wordpress.com/2020/11/74816372793.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42295839-fb4e-4f2e-b929-c48dbc975987/38491390852.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81398059-c962-435f-9155-9909021adbf8/62357082828.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagoba/utv_snow_blower_vs_plow.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_off00004415.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4415 5340 bytes
SHA-256: bc3c5def47a3ccd3dd3481418413bc8dff2f72c4911ba7c1be90ff99fb9d177d
font_01_sfnt_off0000560d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x560D 9496 bytes
SHA-256: a6beb7f981f8c8b7a8d2960553cb1d4fe322e813dd2248b27ea51e67a6808c3b