Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f8e4ea9206b748d…

MALICIOUS

PDF

45.2 KB Created: 2020-10-25 10:31:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: ea1470366650994f59527fe3f4769b7d SHA-1: d53eb7d8385b8f1c013e2a77381f3ca3fab0fe7e SHA-256: 9f8e4ea9206b748dde51b4d0acfd06301c3c1066bbd095784d54df67f48030c5
154 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links designed to redirect users to malicious websites, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The document body, though partially corrupted, contains a URL that appears to be part of this redirection scheme. The ML classifier strongly indicates maliciousness, and the presence of multiple external links suggests a link farm or SEO poisoning tactic to distribute malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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=dockers+shoes+size+guide In PDF document text
    • https://lewejasolon.weebly.com/uploads/1/3/1/4/131437246/wuvubapufamik.pdfIn PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/1000608.pdfIn PDF document text
    • https://gofobodobade.weebly.com/uploads/1/3/4/4/134444694/a9d4807c.pdfIn PDF document text
    • https://giginepa.weebly.com/uploads/1/3/4/3/134389182/megerixabuboj.pdfIn PDF document text
    • https://firedisivimi.weebly.com/uploads/1/3/0/9/130969818/fifazomuninix.pdfIn PDF document text
    • https://jezaxegare.weebly.com/uploads/1/3/1/3/131380636/c9ea82.pdfIn PDF document text
    • https://dotifusogibosu.weebly.com/uploads/1/3/4/4/134458831/2595018.pdfIn PDF document text
    • https://buximinolid.weebly.com/uploads/1/3/1/3/131381316/wamixa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365606/normal_5f875cf881af8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369334/normal_5f9163024ec6b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374715/normal_5f8c90e2ac0a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369502/normal_5f886e741db2b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369323/normal_5f89434ea3f44.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379241/normal_5f8b0bb9616d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416927/normal_5f94db0e95155.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370270/normal_5f88cd2e4bc38.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/wizidimawag/principios_asepsia_y_antisepsia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/8112/0922/files/69916031427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/9230/1718/files/quaker_oats_oatmeal_cooking_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/6973/0723/files/snail_bob_5_unblocked_at_school.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4593/6534/files/google_pixel_camera_apk_for_oppo_f9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/1673/0799/files/19003362398.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_off0000661a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x661A 4768 bytes
SHA-256: 3f346e613ff0cddd830e47f1f9ccecd09da94a23b45a8167e983253cd2946a2f
font_01_sfnt_off00007663.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7663 10200 bytes
SHA-256: 07aa1e811ca6a30e216d22c854142cede9fcad1fc4d0e4f45464313df120ea08
font_02_sfnt_off00009953.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9953 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

Open this report in the interactive analyzer, or submit your own file for analysis.