Malicious PDF — malware analysis report

Static analysis result for SHA-256 f17bc381a4cda4a1…

MALICIOUS

PDF

43.0 KB Created: 2020-08-12 02:16:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 521fd94fa27b3d076f490ae4f4a883ef SHA-1: ad35b1593109c4aee41d15d2e1b42f6619f4b8eb SHA-256: f17bc381a4cda4a1b4b1b7590a6bad6b9f3cafb4af3896dec914fc897f5f5608
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm designed to appear as legitimate documents, but the primary link redirects to malicious infrastructure at 'https://ttraff.ru/pify?keyword=iti+medical+certificate+format+pdf'. This suggests a phishing or malware distribution attempt. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.ru/pify?keyword=iti+medical+certificate+format+pdf
    • http://junadoz.doulasofgreaterlafayette.com/uploads/1/3/2/6/132695384/1594913.pdf
    • http://files.k3studiocafe.com/uploads/1/3/0/9/130969356/dogeradiduxonezula.pdf
    • http://files.albertoniego.com/uploads/1/3/1/8/131871644/rapebewesovupo-bedadu.pdf
    • http://files.bestinmidwest.com/uploads/1/3/2/3/132302987/wokuvimawepuk.pdf
    • http://files.traceymaye.com/uploads/1/3/1/0/131070362/bidivuxutow-xijipu-pisovibaga.pdf
    • https://cdn.shopify.com/s/files/1/0431/6859/6123/files/gizuwoxofim.pdf
    • https://cdn.shopify.com/s/files/1/0429/1277/6351/files/62923832288.pdf
    • https://cdn.shopify.com/s/files/1/0438/3028/0352/files/xawalexufedib.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/josegagogobejes.pdf
    • https://cdn.shopify.com/s/files/1/0437/2375/1575/files/denuxebutivoki.pdf
    • https://cdn.shopify.com/s/files/1/0430/0577/1939/files/nolobol.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/womosoravitixugefiwil.pdf
    • https://cdn.shopify.com/s/files/1/0435/0246/9285/files/69123500144.pdf
    • https://cdn.shopify.com/s/files/1/0429/5327/7603/files/arduino_uno_simple_projects.pdf
    • https://cdn.shopify.com/s/files/1/0430/4614/2114/files/42521406735.pdf
    • https://cdn.shopify.com/s/files/1/0430/4646/9793/files/79355476859.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_off00006a72.bin
e4de59b8791bb04cf48843b21b1322648c3967f001fd524205bdbe2a7a4ff2e5
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A72 5060 bytes
font_01_sfnt_off00007b8c.bin
d67a70364f84fe5064a76337d33e5b3572cfe8101889b8def6e49001154ba29b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B8C 10684 bytes