PDF malware analysis — malicious · 1df255d80b59a6cc

MALICIOUS

PDF

42.6 KB Created: 2020-08-31 03:15:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 54e4aaad33884e2c614dfa70d39055ea SHA-1: 52e6137d4b6cec75f2446a5722b20f88a069c85d SHA-256: 1df255d80b59a6cc3d157e9e222e3a11fe34114a5698516553256b835f710b91

140 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a malicious redirector link pointing to 'ttraff.com', which is flagged as malicious. Additionally, it hosts a large number of external PDF links, many pointing to 'static.usrfiles.com', suggesting a link farm or SEO abuse tactic. The document body, though heavily obfuscated, contains the target URL and mentions 'QR code lure', indicating a social engineering attempt to direct users to malicious content. No scripts were extracted, but the presence of malicious links and the link farm heuristic strongly suggest a phishing or malware distribution 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.
QR-code redirect lure medium SE_QR_LURE

Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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=lego+worlds+legendary+coordinates
- https://static.usrfiles.com/ugd/be19e1_e313bb05d8a94d79bfda4a6806eb84be.pdf
- https://static.usrfiles.com/ugd/b8c837_65e21b207f954b5aa20bf575f0bf44ab.pdf
- https://static.usrfiles.com/ugd/a640e9_00019a0d51db40cfa9599a9a6d19101f.pdf
- https://static.usrfiles.com/ugd/fd7405_f5a4cf8246974897bf363cc1a8248f9d.pdf
- https://static.usrfiles.com/ugd/850f07_edda2871653742d989e37c67b7d559af.pdf
- https://static.usrfiles.com/ugd/b27199_d11b99a2ac4540cdae738a63e04114f1.pdf
- https://static.usrfiles.com/ugd/b8c837_c339c8983be644e3b4c99bf180b96e90.pdf
- https://static.usrfiles.com/ugd/b8c837_f17c6554e1ce4a27b2ea7a8688aa29ca.pdf
- https://static.usrfiles.com/ugd/bb13a2_1a349ff9a4c64a46888ec1580a50ec60.pdf
- https://static.usrfiles.com/ugd/a18aa6_7ab0d6ae593f470182b023fd9c616d70.pdf
- https://static.usrfiles.com/ugd/b8c837_7fb9aedc51804b0da9bd5ac73ec33ef4.pdf
- https://static.usrfiles.com/ugd/b8c837_fa1ed2993df2487d960fe704b1703569.pdf
- https://static.usrfiles.com/ugd/04e6f9_2272cf1e0057491c80489721bad85344.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_off000062a2.bin` `e46b56ee1fb24e1c4e244ae616f75f5caee88219bf8d7824a2e2fe579156f097`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62A2	5240 bytes
`font_01_sfnt_off0000749e.bin` `d0eb6c7dd80ca6984824f6793c507558b46999a7ef62651c342b75d39b10916f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x749E	12856 bytes

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