PDF malware analysis — malicious · 493b8383659b7af7

MALICIOUS

PDF

49.3 KB Created: 2020-09-10 14:52:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 0463b2b1bcb826fb5795c9aef2506b0d SHA-1: f141634da1734d994d6f91bde829e5b56932c7a8 SHA-256: 493b8383659b7af735d7d427d73ba49b79cfa0d67df28ee6d9a5232afb78f91a

150 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, specifically pointing to a URL designed to lure users with a game hack. The document body, though heavily obfuscated, contains references to this lure and numerous other PDF links, indicating a link farm strategy. The ML classifier also strongly flagged this PDF as malicious. The primary intent appears to be directing users to malicious content via the embedded links.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.link/wix?keyword=total+conquest+hack+apk+mod
- http://razof.ashanoeliyer.com/uploads/1/3/1/3/131398589/xopolav-ziwig-givinofo-totisumavesa.pdf
- http://files.carlyaltreewilliams.com/uploads/1/3/1/4/131482822/bujiri.pdf
- http://files.stmatthewspokane.org/uploads/1/3/0/7/130776103/637195.pdf
- http://gomexev.dnabjj.ca/uploads/1/3/0/9/130969744/ec93a8d2463.pdf
- https://static.usrfiles.com/ugd/8d0191_b9aa6a2e73c04917bd4ca8185f017844.pdf
- https://static.usrfiles.com/ugd/9c8fb9_4aaa35e88a98492598324ff4b43df97d.pdf
- https://static.usrfiles.com/ugd/67f5f7_1146c46d621d46949a219ef5e0aca49b.pdf
- https://static.usrfiles.com/ugd/28146e_504848b3e35c43f18002cd3627446984.pdf
- https://static.usrfiles.com/ugd/4c1554_fa6b328c7d3c4705bd9c3c63a054e204.pdf
- https://static.usrfiles.com/ugd/b4a829_3b79ca69951649d098ba72bfe6fe7b9b.pdf
- https://static.usrfiles.com/ugd/e3ff21_8e17c51a82a9448aabcfe7be7abc3b71.pdf
- https://static.usrfiles.com/ugd/bdeb4c_4989165613f74c7daf969c00b18d9a95.pdf
- https://static.usrfiles.com/ugd/83d902_3d75e0aa27fd45c29bcfedc172f34b14.pdf
- https://static.usrfiles.com/ugd/a771bd_7d70d4eec82248eda9bc55112698eff5.pdf
- https://static.usrfiles.com/ugd/b8c837_99fad0fd65e749edbd69c1ff0b3a1c86.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00006d21.bin` `8003ae62cc8acc36cd30dc4f7597f6f4c3d45ba051640e43f7e0d09808c7cd1a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6D21	5356 bytes
`font_01_sfnt_off00007f2e.bin` `2dc695ce5d4908c15b10b6d38907d21f0ef9dd65d67cd1d17c51d6259f5a4301`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7F2E	10660 bytes
`font_02_sfnt_off0000a2cb.bin` `53c3ec829963ec5a0af1bff4be2d724acb9959b277e5253d769434e6be684fe1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA2CB	16160 bytes

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