Malicious PDF — malware analysis report

Static analysis result for SHA-256 47c41e8cd37b288c…

MALICIOUS

PDF

44.4 KB Created: 2020-09-08 04:00:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9b7336fc05c1f694737330d811b1ae41 SHA-1: 64214a2bc4cf8de14f162173b51e77dbe91b4731 SHA-256: 47c41e8cd37b288c4aecc5bbf871c1af52f9a88f076ab7e313645f77f3217caf
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains multiple embedded links, with one identified as a malicious redirector pointing to 'https://ttraff.me/pify?keyword=android+hang+apps'. The document body, though heavily obfuscated, contains this URL, suggesting the primary intent is to direct the user to this malicious site. The presence of a callback phishing lure heuristic further supports the idea that the document is designed to trick the user into interacting with malicious content or services.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.me/pify?keyword=android+hang+apps
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/61327695868.pdf
    • https://cdn.shopify.com/s/files/1/0430/7773/0464/files/national_anthem_lyrics_usa.pdf
    • https://cdn.shopify.com/s/files/1/0428/4488/1059/files/94097740953.pdf
    • https://cdn.shopify.com/s/files/1/0434/2366/2236/files/54925630958.pdf
    • https://cdn.shopify.com/s/files/1/0434/0160/9366/files/37554830294.pdf
    • https://static.usrfiles.com/ugd/b8c837_fb4dc01cd1204fba8ef562004b161247.pdf
    • https://static.usrfiles.com/ugd/c345b0_0feb847e090a4ccaa193c53ab1286ae9.pdf
    • https://static.usrfiles.com/ugd/0f5b72_9fd2b480241642daa9b3528071e543d5.pdf
    • https://cdn.shopify.com/s/files/1/0431/2449/0397/files/bupogowev.pdf
    • https://cdn.shopify.com/s/files/1/0431/8255/5297/files/nawomijuselojiwupefoxutu.pdf
    • https://static.usrfiles.com/ugd/0a84ca_5c4ed60401054326b1a2ae8b85963962.pdf
    • https://static.usrfiles.com/ugd/50c35f_6b599027d5114cd49464d56a2a304f33.pdf
    • https://static.usrfiles.com/ugd/faa7ef_46d5350500ef455093896e4508ce185d.pdf
    • https://static.usrfiles.com/ugd/b8c837_cd080db55ec54f028f44cb67d5a5092d.pdf
    • https://static.usrfiles.com/ugd/80c1db_d5e2b6f3a30640829a3a9531f7512819.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/
    • https://static.usrfiles.com/ugd/faa7ef_46d5350500ef455093896e4508ce185d

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000706c.bin
aaf26807d872c45d58ca5e501923c614beae00e21a3d5f0e3381caa24ec1694f
pdf-font-stream PDF embedded font (sfnt) at offset 0x706C 5176 bytes
font_01_sfnt_off00008204.bin
d389138a60efb3413088b121c4c5d1fab8cb2df41415805ce757d5a641104266
pdf-font-stream PDF embedded font (sfnt) at offset 0x8204 10120 bytes