Malicious PDF — malware analysis report

Static analysis result for SHA-256 30c12d5bee1fa0be…

MALICIOUS

PDF

47.2 KB Created: 2020-08-25 15:50:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 408de23ab07dcb990bdcd9d624d7876f SHA-1: 2535a5493caa33fbe5726cbf1e00a7b89015d5e6 SHA-256: 30c12d5bee1fa0bed9f02ea8db2c8901b56f25810d8788d2406a331a8ffc660a
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link farm pointing to a redirector. The primary redirector URL is 'https://ttraff.cc/pify?keyword=sqlite+create+table+example+android'. This suggests the document is designed to lead users to malicious content through a chain of redirects, likely for phishing or malware distribution. No scripts were extracted, and the document body was heavily corrupted, limiting further analysis of the specific lure.

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=sqlite+create+table+example+android
    • http://files.riverviewcharterschool.org/uploads/1/3/1/3/131380345/3f6e0434cd0.pdf
    • https://cdn.shopify.com/s/files/1/0431/4460/9943/files/99342404994.pdf
    • https://cdn.shopify.com/s/files/1/0432/8249/7701/files/lekuwefotuvinufulujapi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53567737566.pdf
    • https://cdn.shopify.com/s/files/1/0430/0183/9775/files/33402929818.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/fortescue_beach_fishing_report.pdf
    • https://cdn.shopify.com/s/files/1/0435/5624/1557/files/36056150257.pdf
    • https://cdn.shopify.com/s/files/1/0433/1218/5499/files/52226462935.pdf
    • https://cdn.shopify.com/s/files/1/0430/9126/3649/files/tunomobabisunetodujaw.pdf
    • https://cdn.shopify.com/s/files/1/0438/9945/3608/files/rupepeziwetije.pdf
    • https://cdn.shopify.com/s/files/1/0430/7753/3856/files/all_musical_instruments_ringtones_free.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_off00006cbb.bin
5cca1e2d7a91a39010e5edc60942167810ced73a43ee5f5eeae1f8c88ab4d637		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CBB 5480 bytes
font_01_sfnt_off00007f3b.bin
ceed0f3309a85984cf1f03e416b0be75ef6dcd64bbe09e3be4c8b9f50068a31e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F3B 15788 bytes

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