Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb2f24d1e21fd8d6…

MALICIOUS

PDF

50.8 KB Created: 2020-08-01 20:40:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9471991ddca28fb0f7c415244f592fad SHA-1: 31622001e0cd4519bba24e64c5d875bcabe2e1d4 SHA-256: fb2f24d1e21fd8d6d3e0f37e98dff370eae1d312be2201903fc8ee45e554301c
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=hillsong+worship+no+other+name'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0439/7016/6942/files/bifukum.pdf'. The document body, though heavily obfuscated, contains the same redirector URL and a benign-looking PDF link, suggesting a lure to a malicious site.

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.ru/pify?keyword=hillsong+worship+no+other+name
    • http://files.seattlefirstbaptist.org/uploads/1/3/2/3/132303080/81e42db7c9176.pdf
    • http://files.graybiel-lab.com/uploads/1/3/0/8/130814126/9885208.pdf
    • http://files.barambah-beekeepers.org/uploads/1/3/0/7/130775062/xukuzadefijizasalo.pdf
    • http://files.polarisportfolios.com/uploads/1/3/0/7/130739919/wemazorenedipakuwa.pdf
    • https://cdn.shopify.com/s/files/1/0439/7016/6942/files/bifukum.pdf
    • https://cdn.shopify.com/s/files/1/0434/6295/1065/files/vufakofepopi.pdf
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/75393821933.pdf
    • https://cdn.shopify.com/s/files/1/0433/5032/7451/files/33956527482.pdf
    • https://cdn.shopify.com/s/files/1/0432/7194/6396/files/97114466444.pdf
    • https://cdn.shopify.com/s/files/1/0433/8044/1238/files/purabikufokelatuxedurepo.pdf
    • https://cdn.shopify.com/s/files/1/0431/8547/1656/files/47818577119.pdf
    • https://cdn.shopify.com/s/files/1/0432/2259/7796/files/fonuzokosupajekukebuf.pdf
    • https://cdn.shopify.com/s/files/1/0430/2385/9873/files/vumadu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/82935027900.pdf
    • https://cdn.shopify.com/s/files/1/0435/5863/3631/files/18347681822.pdf
    • https://cdn.shopify.com/s/files/1/0431/5136/0164/files/89119220993.pdf
    • https://cdn.shopify.com/s/files/1/0430/8277/6727/files/59466735989.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_off00006699.bin
90826f8ecd76457189faae8503405669e055deae9147c6dd794ee8feeaa2d02d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6699 5284 bytes
font_01_sfnt_off00007878.bin
9139a2173beeef05d7a814c81de7c15a06d62a2849c7f72e9ce45b14f14f8549
pdf-font-stream PDF embedded font (sfnt) at offset 0x7878 15900 bytes
font_02_sfnt_off0000a944.bin
d973db94ba2c448c661c26f08d051ac794e7cb4f3c7daa33c2141e8036f071b6
pdf-font-stream PDF embedded font (sfnt) at offset 0xA944 16100 bytes