PDF malware analysis — malicious · d057cb31a8ec9be4

MALICIOUS

PDF

49.3 KB Created: 2020-08-31 09:53:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 7f987800cd2b6c66fa0dbec3a914cf57 SHA-1: 5bbef74b80544fbf6a13a6b9868d88e44ed76f3f SHA-256: d057cb31a8ec9be4211f51e91cf84c15ee4369b2f31f56ed7599b6cf76916263

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, identified as a PDF link farm. One of these links, https://ttraff.cc/wix?keyword=i+will+survive+sheet+music, is flagged as a malicious redirector. The document body appears to be heavily obfuscated or corrupted, but the presence of the link farm and the malicious redirector strongly suggests an attempt to direct users to harmful content, possibly for SEO poisoning or further exploitation.

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.cc/wix?keyword=i+will+survive+sheet+music
- https://static.usrfiles.com/ugd/8127dd_8fd4457fccda4129956a3ffc47971bf6.pdf
- https://static.usrfiles.com/ugd/b8c837_6081823974ba4625870d29dfba38e714.pdf
- https://static.usrfiles.com/ugd/b8c837_86fce33d88d24af9b0187d99524497b9.pdf
- https://static.usrfiles.com/ugd/10e3af_9875e0285fc1418fb0c1ceccb77611d6.pdf
- https://static.usrfiles.com/ugd/a2e20a_9490135907fd4dbc87b35208f711c80c.pdf
- https://static.usrfiles.com/ugd/b8c837_8b4006b263a44d7881db2fe21a027e61.pdf
- https://static.usrfiles.com/ugd/ceb2e8_8e84cd547de641c8aec0f3d6ff6570b6.pdf
- https://static.usrfiles.com/ugd/432b07_264ea610691146b6ac062093bc374a72.pdf
- https://static.usrfiles.com/ugd/39cb9d_e7055b1e1c9640398f1cbd512961f9b7.pdf
- https://static.usrfiles.com/ugd/db93e9_0bd57be146cc4636a2e283c1ae24baea.pdf
- https://static.usrfiles.com/ugd/a640e9_47328a33c428410f909c95d5bab929fb.pdf
- https://static.usrfiles.com/ugd/2b25e8_32a2ee4f5c3c42ec8171bf1faca1af9a.pdf
- https://static.usrfiles.com/ugd/b8c837_dff7c2f01dfb49fc867614780af3b1a9.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_off000083f9.bin` `b9c42164b6f1a7ab1ea17e4605fc25893a0a2b68422e966613c347f193d42d65`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83F9	4920 bytes
`font_01_sfnt_off0000949b.bin` `02470583b328f4f99cdd5a472ea572dbb3f457e2464c1ae618ae390c3f0515f1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x949B	10456 bytes

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