PDF malware analysis — malicious · abf7ec2ecf6043aa

MALICIOUS

PDF

42.9 KB Created: 2020-08-29 01:20:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 62be56d8bb6b46127ef5711e5e07b268 SHA-1: 9e767999a5451ea49413186a96f141244d602979 SHA-256: abf7ec2ecf6043aa27be2aab8dd7826dcba49d1c75bbd09b3e626fdf014a9032

140 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 'https://ttraff.cc/wix?keyword=osrs+1-+99+construction'. Additionally, it exhibits characteristics of a link farm and includes a callback phishing lure, suggesting a scam or phishing attempt. The document body, though heavily obfuscated, contains the same malicious URL and numerous other URLs hosted on 'static.usrfiles.com', which are likely part of the link farm. No scripts were extracted from this sample.

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.cc/wix?keyword=osrs+1-+99+construction
- https://static.usrfiles.com/ugd/b8c837_6c222ce923834f9a9851a03de609e8c5.pdf
- https://static.usrfiles.com/ugd/b8c837_7b72f254cbc84eea97d00167cee83113.pdf
- https://static.usrfiles.com/ugd/b8c837_3b07c0ad5932484788e556414f4ebab2.pdf
- https://static.usrfiles.com/ugd/b8c837_c30933d126ff4f8783e9ea0e99a0c9ac.pdf
- https://static.usrfiles.com/ugd/b8c837_741b7f6a61d14d2093375e09dc85b30b.pdf
- https://static.usrfiles.com/ugd/b8c837_ad69518613604b57992494a838919344.pdf
- https://static.usrfiles.com/ugd/b8c837_6a8e558f2e084f9bbdb3e8fb9e034ad9.pdf
- https://static.usrfiles.com/ugd/b8c837_7e844fd66b614d48941a244671bb6e6c.pdf
- https://static.usrfiles.com/ugd/b8c837_efecfac215454b0e9be89bf658fd3c9b.pdf
- https://static.usrfiles.com/ugd/b8c837_9d237b1638054691bbfc12eece92e935.pdf
- https://static.usrfiles.com/ugd/b8c837_e4a94a6ddf6d452cbc41c039b8f8e669.pdf
- https://static.usrfiles.com/ugd/b8c837_eb7b9ff53afe4665843893c2008d0bbc.pdf
- https://static.usrfiles.com/ugd/b8c837_5bd8a78e42484b0187cfcc6f3640ee6e.pdf
- https://static.usrfiles.com/ugd/b8c837_cdc77f2aa0844d95be48d2cfbe874bbd.pdf
- https://static.usrfiles.com/ugd/b8c837_dcdcae093c5d4f0183a0be9bb8c53f65.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_off00006b5f.bin` `910165b4fc4e72fcaf4ce2eb07126c496cbae27922851b73867a4c0f884286be`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6B5F	4820 bytes
`font_01_sfnt_off00007bd4.bin` `68a2f30705cd477361a127a41e8f8743e9d21e0b8f55c88e65c54cd58de46a79`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7BD4	10256 bytes

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