Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee5ea3288522d35b…

MALICIOUS

PDF

43.9 KB Created: 2020-08-31 19:24:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b8b8c98ac61af1f06272e60b4c7a3e95 SHA-1: 68339a66c6cf97aa2f65f76f33cdfae3527476cb SHA-256: ee5ea3288522d35b5eb14f72b8a60cc8ac69d24654484c45d07e25aff8dc8c91
128 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to known malicious infrastructure, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same URL and appears to be a lure related to 'escape room game answers secret agent'. The PDF also contains a large number of external links, many hosted on Shopify, suggesting a link farm for SEO manipulation or distribution.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/wix?keyword=escape+room+game+answers+secret+agent
    • https://cdn.shopify.com/s/files/1/0433/3882/5887/files/90872426158.pdf
    • https://cdn.shopify.com/s/files/1/0434/6819/3952/files/pifiw.pdf
    • https://cdn.shopify.com/s/files/1/0429/8070/4405/files/noterofarojixadifajo.pdf
    • https://cdn.shopify.com/s/files/1/0435/3461/4688/files/buzaxikuzewuzir.pdf
    • https://cdn.shopify.com/s/files/1/0432/1371/7662/files/64182776917.pdf
    • https://cdn.shopify.com/s/files/1/0460/0142/2497/files/the_little_seagull_handbook_with_exe.pdf
    • https://cdn.shopify.com/s/files/1/0436/9409/6539/files/mavikegetukanafabun.pdf
    • https://static.usrfiles.com/ugd/87d215_a8d8685e3ab44609aed0fd76923f9624.pdf
    • https://static.usrfiles.com/ugd/97aff7_10a58bb47fde46729911103b8af15146.pdf
    • https://static.usrfiles.com/ugd/9ea9b6_f7ffa8b825f1470297ea65b5bb7aee50.pdf
    • https://static.usrfiles.com/ugd/b8c837_941cb09722124005a9a745a8750c1b6b.pdf
    • https://static.usrfiles.com/ugd/c83fdb_aef625ef6d9545fbbf42f79b8db11270.pdf
    • https://static.usrfiles.com/ugd/de60da_4b0c3b26ae06467a9c57e84b883bc480.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_off00006061.bin
2954c96cd3e24626f2ce3031aa4b8a6d24ace6a23428e2df021cfb4e2fb3b46e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6061 5008 bytes
font_01_sfnt_off0000715a.bin
19ea705db5c1ca0179572431ae328e41421dee52d4aad63c980a993f408e9604
pdf-font-stream PDF embedded font (sfnt) at offset 0x715A 10800 bytes
font_02_sfnt_off000094f1.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0x94F1 4324 bytes