Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb565b230c428b6f…

MALICIOUS

PDF

40.1 KB Created: 2020-08-23 15:45:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cede7e3319f13d690be7667c161a6ef6 SHA-1: e4420c35f2f4314fa649f7629a2d23dfeb64ddc4 SHA-256: eb565b230c428b6fbccc4c39e19b626e1ab36f2b42b7c20c9fa4aec1a4c85a97
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

This PDF document is designed to lure users into clicking on a multitude of links, creating a link farm. One of the embedded links, https://ttraff.ru/pify?keyword=ebira+reporters+news, is known to redirect to malicious infrastructure. The document's primary purpose appears to be directing users to potentially harmful external sites.

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://ttraff.ru/pify?keyword=ebira+reporters+news
    • http://files.donpollo.net/uploads/1/3/0/7/130738988/6151c2a8a.pdf
    • http://kigeled.hectorsshop.com/uploads/1/3/1/3/131379833/fd7a75.pdf
    • http://files.dreamrealtyandappraisal.com/uploads/1/3/0/8/130874213/mukopupiso.pdf
    • http://jegavafaf.nancyhallock.com/uploads/1/3/0/8/130874038/bonenawivamivepejol.pdf
    • https://cdn.shopify.com/s/files/1/0434/7294/5304/files/nadosemu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5299/8556/files/13423842592.pdf
    • https://cdn.shopify.com/s/files/1/0429/0258/5500/files/facebook_for_nokia_c3.pdf
    • https://cdn.shopify.com/s/files/1/0433/5930/5880/files/nipatazugo.pdf
    • https://cdn.shopify.com/s/files/1/0440/4844/9686/files/evaluation_sheet_for_project.pdf
    • https://cdn.shopify.com/s/files/1/0437/1713/2456/files/diagnostic_tests_for_hiv.pdf
    • https://cdn.shopify.com/s/files/1/0437/1739/4586/files/67847512774.pdf
    • https://cdn.shopify.com/s/files/1/0439/1947/4856/files/86197115251.pdf
    • https://cdn.shopify.com/s/files/1/0431/6558/1468/files/letter_g_sound_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/3309/1480/files/82679502643.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060fb.bin
e2be3db62e9abbf6e0abe0534aae08d8adafa16794cf6263bb7bc44336b16234
pdf-font-stream PDF embedded font (sfnt) at offset 0x60FB 4972 bytes
font_01_sfnt_off000071ff.bin
b0606194928aaa3d078fd75e313f3d7f00d3bd06efe877654b192b01900a9333
pdf-font-stream PDF embedded font (sfnt) at offset 0x71FF 9832 bytes