Malicious PDF — malware analysis report

Static analysis result for SHA-256 c079c52d750cbcd6…

MALICIOUS

PDF

139.0 KB Created: 2020-07-17 23:00:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 746dde72f93ac8d39be3269c71d51a88 SHA-1: 9a3608c3b7fc38a9aa0c75ee5465b4f7d26455fe SHA-256: c079c52d750cbcd6fb1d5a22d3b61e19e4966c6d55e46f4ba81e7cbb602c1367
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. This indicates the document is designed to redirect users to potentially harmful content. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility. No scripts were extracted, but the primary attack vector is the malicious URL embedded within the document.

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.cc/pify?keyword=tax+cuts+and+jobs+act+text+pdf
    • http://files.guardtoursystems.com/uploads/1/3/1/3/131381607/fefux.pdf
    • http://files.kmaysphotography.com/uploads/1/3/1/3/131383329/5393496.pdf
    • http://files.juliasartpath.com/uploads/1/3/1/0/131071063/vorakebibolokeg_bifinedejima_safazidug.pdf
    • http://files.busybeeorganize.ca/uploads/1/3/0/9/130969004/gojebifazalomo-maxurapokenoxo.pdf
    • https://cdn.shopify.com/s/files/1/0432/3108/4708/files/45048717281.pdf
    • https://cdn.shopify.com/s/files/1/0428/5654/6467/files/50537047482.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luzugojozawok.pdf
    • https://folupovul.files.wordpress.com/2020/07/xeradipomuturorunarevuf.pdf
    • https://wipimowus.files.wordpress.com/2020/07/12282617610.pdf
    • https://fulivamata.files.wordpress.com/2020/06/55242755046.pdf
    • https://papaxik.files.wordpress.com/2020/06/15641768622.pdf
    • https://cdn.shopify.com/s/files/1/0434/0505/0008/files/88465223782.pdf
    • https://cdn.shopify.com/s/files/1/0433/9413/8277/files/39251604079.pdf
    • https://cdn.shopify.com/s/files/1/0432/3885/0728/files/ririwesuj.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sejil.pdf
    • https://cdn.shopify.com/s/files/1/0434/6875/0998/files/28119997700.pdf
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/wuriligolonazapotubisik.pdf
    • https://cdn.shopify.com/s/files/1/0431/9897/2066/files/1837419355.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001d90e.bin
aee49d4df847f7a17fb951a669d010a48ba55dd2aca2246c4cbfcc08e8d4a966
pdf-font-stream PDF embedded font (sfnt) at offset 0x1D90E 5088 bytes
font_01_sfnt_off0001ea65.bin
1404af5de4e7e2916c6b2e57c947ef6db67eb54ef21bf942bf5a83206de98ddc
pdf-font-stream PDF embedded font (sfnt) at offset 0x1EA65 1636 bytes
font_02_sfnt_off0001f28c.bin
aefcb1060a1a762c5ce7cc5338b399ca4ea2e89e7b8e193a3d7332516bbcef00
pdf-font-stream PDF embedded font (sfnt) at offset 0x1F28C 13416 bytes