Malicious PDF — malware analysis report

Static analysis result for SHA-256 b47f3256306de537…

MALICIOUS

PDF

70.1 KB Created: 2020-08-19 09:48:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c44076a8163d37a3ad90ab60bcfe918e SHA-1: 3e0840d97f92ed8d99ec0c41af1150aba11a62c2 SHA-256: b47f3256306de5375472644a8fd42fc93162676d7bc4acae155a316b13016244
128 Risk Score

Malware Insights

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

The PDF contains a call-to-action button lure and embeds a mass of external PDF links, including one pointing to a known malicious redirector. The primary malicious URL is https://ttraff.com/pify?keyword=countrywide+healthcare+data+sheets, which likely serves as a gateway to further malicious content. The document body, though heavily obfuscated, contains references to the malicious URL and benign-looking PDF links hosted on Shopify, suggesting a deceptive lure.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=countrywide+healthcare+data+sheets
    • http://parafur.elephantsinthecoffee.com/uploads/1/3/1/8/131856698/zeliroxupikigigotag.pdf
    • http://fugofubi.localproduceguide.com.au/uploads/1/3/0/7/130776356/3447234.pdf
    • https://cdn.shopify.com/s/files/1/0433/1339/7924/files/50563140721.pdf
    • https://cdn.shopify.com/s/files/1/0437/2211/3173/files/joduxedaxodutejo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3333/7768/files/fifati.pdf
    • https://cdn.shopify.com/s/files/1/0439/4106/8958/files/wofuwijaku.pdf
    • https://cdn.shopify.com/s/files/1/0438/1304/4386/files/bruchrechnen_zusammenfassung.pdf
    • https://cdn.shopify.com/s/files/1/0430/3310/0439/files/tibevemuboj.pdf
    • https://cdn.shopify.com/s/files/1/0432/8846/1478/files/cycle_evolutif_de_schistosoma_haematobium.pdf
    • https://cdn.shopify.com/s/files/1/0429/3338/7423/files/hp_48gx_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/1758/5308/files/download_novel_challenger_deep.pdf
    • https://cdn.shopify.com/s/files/1/0431/2930/7287/files/85039029403.pdf
    • https://cdn.shopify.com/s/files/1/0433/1926/3397/files/36647240504.pdf
    • https://cdn.shopify.com/s/files/1/0437/0232/1307/files/32200382538.pdf
    • https://cdn.shopify.com/s/files/1/0437/3364/7525/files/49292644573.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_off0000d3ab.bin
575c56212eef9234ccb6cb38e979174644106b5383d1f4e25bf1480527853f7d
pdf-font-stream PDF embedded font (sfnt) at offset 0xD3AB 5128 bytes
font_01_sfnt_off0000e526.bin
cee1e2b954af26ba7bb062616ce14f8342f6a20cfdbd89d3f1dd7d31581b105f
pdf-font-stream PDF embedded font (sfnt) at offset 0xE526 11208 bytes