PDF malware analysis — malicious · 93c8a4d6f0fcf4aa

MALICIOUS

PDF

41.3 KB Created: 2020-08-30 14:05:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 8094ec714637b429389bfd5c4c26649b SHA-1: f37e1a34fb1ba6b71af332d78a27a69018f10206 SHA-256: 93c8a4d6f0fcf4aa690b65803530aa8c19f430f0bdb529d91d729b91a66c6e8c

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/wix?keyword=you+and+tequila+make+me+crazy+chords'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external PDF links, with the primary one being 'https://static.usrfiles.com/ugd/b8c837_1c45879901e34e7a9171cf37e6f36f16.pdf'. The document body, though heavily obfuscated, contains these URLs, suggesting a lure to external content. No scripts were extracted, but the presence of malicious redirectors and link farms strongly indicates a phishing or malware distribution attempt.

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.com/wix?keyword=you+and+tequila+make+me+crazy+chords
- https://static.usrfiles.com/ugd/b8c837_1c45879901e34e7a9171cf37e6f36f16.pdf
- https://static.usrfiles.com/ugd/e1c37d_a206a91cbf2c41379438a4871ba9922e.pdf
- https://static.usrfiles.com/ugd/b8c837_6095cd605a4b43bca7bb6f59728d8c0f.pdf
- https://static.usrfiles.com/ugd/9dda13_5cc82a41049345e995e2a4eb5819bcf5.pdf
- https://static.usrfiles.com/ugd/a382ee_9d6c86c18cd9442b9592e2f902994a0e.pdf
- https://static.usrfiles.com/ugd/1cc7e8_d043a5d33ba8483889a2b187957fe4b9.pdf
- https://static.usrfiles.com/ugd/38bf1f_b9e03ebf9e294f4bb7f2a0d86e634e60.pdf
- https://static.usrfiles.com/ugd/b7306e_6a8ebb7309ab4db68f326bd61d095e7a.pdf
- https://static.usrfiles.com/ugd/c3548c_ac4c44fc487b4eb98e75a7e654551699.pdf
- https://static.usrfiles.com/ugd/fa6f14_21f42402357241a4aacc7132a645528f.pdf
- https://static.usrfiles.com/ugd/b8c837_e3cca861d73d4e9bb6428ff1c4cdf28d.pdf
- https://static.usrfiles.com/ugd/83f04e_ad569d9982314a298cee164bc5e719d1.pdf
- https://static.usrfiles.com/ugd/7e0eb0_d877dd5d8ca24fa4846e6732de0cd831.pdf
- https://static.usrfiles.com/ugd/67f5f7_6acd2c23f35e462b95847a212a628ae7.pdf
- https://static.usrfiles.com/ugd/a64c8c_7ced67f7fec14aafb02285f3635a76f5.pdf
- https://static.usrfiles.com/ugd/b8c837_8a4d629552b34ccb84428d6a318f4380.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/
- https://static.usrfiles.com/ugd/a64c8c_7ced67f7fec14aaf

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006358.bin` `b679d75f76399f0d6640a0edd47d0f38e65bea3ff2a3c8553adb17bccb4e0867`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6358	5484 bytes
`font_01_sfnt_off000075da.bin` `02ee3429f2634c82a83e3e0a46742ec4ed03d78d226ecc3539dac6650d74053d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x75DA	9964 bytes

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