Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7e00d0b883f494f…

MALICIOUS

PDF

42.1 KB Created: 2020-08-08 06:40:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ab247b6d82481ed9c3d330694b83ae4 SHA-1: 2a26bb01a454f19fef2c52fdefe74651120179d1 SHA-256: e7e00d0b883f494f55fd48a925a6b260daec9ec286d3e8c1e1d0d995b2876e20
128 Risk Score

Malware Insights

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

The PDF document is designed as a lure, masquerading as a 'carers allowance application form' to entice users to click on embedded links. It contains a significant number of external PDF links, with one prominent link pointing to a known malicious redirector. The document's structure and the presence of numerous links suggest a phishing or redirection campaign aimed at delivering further malicious content.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=carers+allowance+application+form+pdf
    • http://files.webchristchurch.com/uploads/1/3/0/7/130776327/xoxuvuwutosopuruni.pdf
    • http://files.classicroadart.com/uploads/1/3/2/7/132741181/3ac1ba.pdf
    • http://zuxij.annablossom.us/uploads/1/3/2/6/132681352/7790206d.pdf
    • http://files.akws.org/uploads/1/3/1/3/131398367/wujagizixofipi-rakik-kenafanokuf.pdf
    • https://cdn.shopify.com/s/files/1/0430/4073/5381/files/leboxorewe.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/67257536452.pdf
    • https://cdn.shopify.com/s/files/1/0427/8734/0454/files/kakisazedanorelilikof.pdf
    • https://cdn.shopify.com/s/files/1/0431/3664/7317/files/xabipimafobav.pdf
    • https://cdn.shopify.com/s/files/1/0439/1917/9931/files/bewizizilalajapawovem.pdf
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/vetezudigumakutelurasukoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/4189/0208/files/link_react_router_dom.pdf
    • https://cdn.shopify.com/s/files/1/0441/2456/9752/files/40752059892.pdf
    • https://cdn.shopify.com/s/files/1/0432/0985/1048/files/peptic_ulcer_disease_notes_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0436/2086/0064/files/45028608393.pdf
    • https://cdn.shopify.com/s/files/1/0430/9162/4096/files/92456338542.pdf
    • https://cdn.shopify.com/s/files/1/0430/9365/5716/files/annex_10.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_off00006664.bin
a01b3192a10dc54b53b125aaa55212ce1a530cc3d83c0b5d0b727b75fdafafd6
pdf-font-stream PDF embedded font (sfnt) at offset 0x6664 5296 bytes
font_01_sfnt_off00007864.bin
4b30850bb2454979ab2f60b0cf38152c9eae9945065499a26f965e2c7ebc2df9
pdf-font-stream PDF embedded font (sfnt) at offset 0x7864 10156 bytes