PDF malware analysis — malicious · 9b9c66b4c0558427

MALICIOUS

PDF

79.1 KB Created: 2020-09-03 20:31:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: dafa3940250c1318ef0658eaa3835e58 SHA-1: 8c62c62b82539618730fd52ab8622484a67d0256 SHA-256: 9b9c66b4c05584279fb76ce770e0b029dca315adb367f8c247f3d8ac2b7ee4fc

128 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 pointing to 'ttraff.cc'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on 'static.usrfiles.com'. The document body, though heavily obfuscated, contains the same malicious URL. The primary attack pattern involves tricking the user into clicking the malicious link, likely for a phishing or malware delivery attempt.

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/pify?keyword=android+game+like+civilization
- https://static.usrfiles.com/ugd/b8c837_c720883fa70a4b16aa28daeb13e60fa9.pdf
- https://static.usrfiles.com/ugd/f967ac_52a33efc4c694404b06b392dd06aecd5.pdf
- https://static.usrfiles.com/ugd/b0b521_5d2faa8b7c9044f8b54127b2c85e4db1.pdf
- https://static.usrfiles.com/ugd/c12414_cb05a2dc6c1c4a65aa34a536e9805030.pdf
- https://static.usrfiles.com/ugd/e1a791_7982e5365e864293a045f21af0fad9c0.pdf
- https://static.usrfiles.com/ugd/b8c837_74c8d5b9a8ef47ab906091a9d2d4077e.pdf
- https://cdn.shopify.com/s/files/1/0439/1682/0635/files/miraparajozofenadekikavof.pdf
- https://cdn.shopify.com/s/files/1/0438/0993/1426/files/34679947131.pdf
- https://cdn.shopify.com/s/files/1/0434/0521/3852/files/maitre_d_armes_trophy_guide.pdf
- https://cdn.shopify.com/s/files/1/0429/0707/4723/files/43028811041.pdf
- https://cdn.shopify.com/s/files/1/0434/0563/9836/files/98008478600.pdf
- https://static.usrfiles.com/ugd/122077_e43ee70b7a104a2a92dd5e623a8ccd50.pdf
- https://static.usrfiles.com/ugd/4bdc6d_8eec35a778004082a841f6fae6d3f8d6.pdf
- https://static.usrfiles.com/ugd/4b68be_71f4230250fa4c6885384832f6b92c98.pdf
- https://static.usrfiles.com/ugd/fc840b_d2a44afdc8884d158d90a017ea186977.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f8aa.bin` `2142f26cdf9388474de907337f921b8af9f9981958f840f33c02af7fcb8e9c92`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF8AA	5244 bytes
`font_01_sfnt_off00010a7f.bin` `29d7b76ecd625f2101a49a1fb090c76b72d48545342448f460426367251a0a89`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10A7F	10816 bytes

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