Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb3acad0a2789c9d…

MALICIOUS

PDF

43.1 KB Created: 2020-08-12 21:19:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 88378cc7e69bb9d6f0bbb274349b9a98 SHA-1: 634f52183d7cd96a9ab50b6605f540b1437bc0bf SHA-256: bb3acad0a2789c9dfc8d5fdbd5fd3bafbff9f379aa9fec774f3a8148f6c3c3a5
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. The document body, though partially corrupted, contains text referencing 'Axis bank credit card cancellation form pdf' and the malicious URL itself. The PDF also contains a mass external PDF link farm, with many links hosted on shopify.com, suggesting an attempt to obscure the malicious redirector.

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=axis+bank+credit+card+cancellation+form+pdf
    • http://files.safetygradelicensure.org/uploads/1/3/1/4/131455337/3703980.pdf
    • http://files.lucindaquilts.com/uploads/1/3/1/4/131438260/fejokusixevat_wameriziv.pdf
    • http://files.heatherlippphotography.com/uploads/1/3/0/8/130873893/3903988.pdf
    • http://jenodumu.masterlibrary-staging.com/uploads/1/3/1/4/131483337/pubolikozupuwib.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/85349954380.pdf
    • https://cdn.shopify.com/s/files/1/0436/1243/8685/files/bordered_hessian_determinant.pdf
    • https://cdn.shopify.com/s/files/1/0437/8856/6677/files/40950504531.pdf
    • https://cdn.shopify.com/s/files/1/0431/5525/9560/files/50277705606.pdf
    • https://cdn.shopify.com/s/files/1/0432/7663/2217/files/fuligo.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/51258775982.pdf
    • https://cdn.shopify.com/s/files/1/0435/2815/9396/files/bwv_1052_piano.pdf
    • https://cdn.shopify.com/s/files/1/0437/5950/1464/files/nursing_drug_handbook_2017_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0448/0407/9777/files/neuralgia_de_arnold.pdf
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/45469718763.pdf
    • https://cdn.shopify.com/s/files/1/0437/7139/6257/files/e_magazine_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/6241/1935/files/jilevaxubukafutifekasejep.pdf
    • https://cdn.shopify.com/s/files/1/0430/8339/9321/files/67603191987.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/watch_wrestling_uno.pdf
    • https://cdn.shopify.com/s/files/1/0435/9330/2178/files/approaches_to_risk_management.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_off00006901.bin
337c44cd47488adbca7339ea053329c3803fa766a9e4fbde41930000e16f61c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x6901 5564 bytes
font_01_sfnt_off00007bcb.bin
a9d50d554464bb18cd461f2f9b796f7560818f080f4c6c10b60f22cb37ee8039
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BCB 10368 bytes