Malicious PDF — malware analysis report

Static analysis result for SHA-256 22d22844f02ed49b…

MALICIOUS

PDF

34.9 KB Created: 2020-09-08 01:17:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9d1c0b9f9fa3f839bb01ad53382ac8e9 SHA-1: 5775a9b82550d825d9cc9e21e13929424a2fb128 SHA-256: 22d22844f02ed49b3d95813c2d47dbc2657e3937010d90aed91f224f138343e9
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to other PDF documents, a technique often used for SEO manipulation or to obscure malicious content. One of these links, 'https://ttraff.me/wix?keyword=legal+sports+report+twitter', is identified as a malicious redirector. This suggests the document is part of a campaign to lure users to malicious sites, likely for phishing or distributing further malware.

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.
  • 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.
  • 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.me/wix?keyword=legal+sports+report+twitter
    • https://static.usrfiles.com/ugd/529385_3857e2ecbd564971a3327c8985f11c76.pdf
    • https://static.usrfiles.com/ugd/f6a907_25fd221749f94f16b81221e6a28e9159.pdf
    • https://static.usrfiles.com/ugd/822ecd_d9caa5f7a99c42429d34b4eb5285d9ce.pdf
    • https://static.usrfiles.com/ugd/ce4b7c_2b340ec4ced64576b4fa1f1fb1733b34.pdf
    • https://static.usrfiles.com/ugd/b4bf80_cabebdff7b1c483fa113a113eb36ea33.pdf
    • https://static.usrfiles.com/ugd/f2ef67_6a0df296c8bd4ff8a95a0d5b621a2b9b.pdf
    • https://cdn.shopify.com/s/files/1/0432/6329/5654/files/deberujosomumabofurenu.pdf
    • https://cdn.shopify.com/s/files/1/0435/5650/3713/files/trx_bicep_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0433/4115/2421/files/lodupajinepirorogogawefuz.pdf
    • https://cdn.shopify.com/s/files/1/0431/6174/7605/files/bupusasa.pdf
    • https://cdn.shopify.com/s/files/1/0433/4610/0392/files/jixifigamijufepi.pdf
    • https://cdn.shopify.com/s/files/1/0429/3692/6374/files/advanced_javascript_books.pdf
    • https://cdn.shopify.com/s/files/1/0434/5469/3541/files/vutekenofudoburaxalaluzog.pdf
    • https://cdn.shopify.com/s/files/1/0439/1672/2344/files/a_clockwork_orange_analysis.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_off00004bcf.bin
11b4a97070701e4c2f891e74bad2c12263c3f237da93690fa38664e4cd47f6c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BCF 5020 bytes
font_01_sfnt_off00005d0d.bin
4c86708faba5c4d12e7131b2633589be946ae153e98c287ff39f5fb84c4f7ffd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D0D 9960 bytes

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