Malicious PDF — malware analysis report

Static analysis result for SHA-256 889f09cf2a4b9e2b…

MALICIOUS

PDF

47.3 KB Created: 2020-08-17 03:12:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 575a4f982c28f96a27bbd0c6419922b2 SHA-1: bfce182d312d8a19129246f7b8a6aafc9a636a89 SHA-256: 889f09cf2a4b9e2b7c56ddbad9700a05d280c5428fc8e1872344a92a90432639
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to external sites, with a critical heuristic identifying it as a link farm. One of the primary links, 'https://ttraff.com/pify?keyword=jquery+dialog+appendto+form', is flagged as a malicious redirector. This suggests the document's purpose is to drive traffic to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted from this sample.

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.com/pify?keyword=jquery+dialog+appendto+form
    • http://files.jazzinthevalley.com/uploads/1/3/1/4/131437418/jiraninoloxi_gatunejerebunit_niliviwevikulop_xerebeludadugib.pdf
    • http://files.kayaband.co.uk/uploads/1/3/2/6/132682070/2059647.pdf
    • http://giwado.erinsmithlac.com/uploads/1/3/2/8/132814930/610126.pdf
    • http://files.lykeys.com.au/uploads/1/3/0/8/130873869/29c4020b7.pdf
    • http://garozo.coreyscup.com/uploads/1/3/2/6/132682646/golofen.pdf
    • https://cdn.shopify.com/s/files/1/0438/4607/4525/files/2554350356.pdf
    • https://cdn.shopify.com/s/files/1/0431/0515/7282/files/13695445953.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tomazemajetel.pdf
    • https://cdn.shopify.com/s/files/1/0431/1449/6161/files/pdf_to_dwg_converter_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jikas.pdf
    • https://cdn.shopify.com/s/files/1/0431/8704/4510/files/atresia_esofagica_tratamiento.pdf
    • https://cdn.shopify.com/s/files/1/0430/1609/3849/files/80689968047.pdf
    • https://cdn.shopify.com/s/files/1/0434/7104/4770/files/wegat.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/attrition_in_hr.pdf
    • https://cdn.shopify.com/s/files/1/0431/0754/9338/files/88987511555.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_off0000748a.bin
286e1639abded4029ad670355c2332a8040f14ee90630be7894698b96987272c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x748A 5400 bytes
font_01_sfnt_off000086de.bin
d103931f2161470913eb2e1cd2c7b8c84fc80af7cdac62de70dbaae3e03023ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86DE 13100 bytes

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