Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a143448b7d2a389…

MALICIOUS

PDF

52.4 KB Created: 2020-08-29 18:46:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89e68fd09beb92e06cc45ad9388d1051 SHA-1: 7248961430d4166492a7faf6dd184f077d48a2ca SHA-256: 8a143448b7d2a3891a79c289b9b18d359b16eed0b6252b62259c851bd6e21fb4
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains the malicious URL and other benign-looking URLs, suggesting a lure to a malicious site. No scripts were extracted, but the primary attack vector appears to be directing the user to the malicious 'ttraff.com' domain.

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=javascript+async+events+callbacks+promises+and+async+await+pdf
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/59295539993.pdf
    • https://cdn.shopify.com/s/files/1/0435/5106/4228/files/plautus_aulularia.pdf
    • https://cdn.shopify.com/s/files/1/0435/4372/4186/files/4101096581.pdf
    • https://static.usrfiles.com/ugd/b8c837_5fd5dcb1a92e49d8840df450f72f6b06.pdf
    • https://static.usrfiles.com/ugd/b8c837_6e0498905ca24b85803a9b1034aec93a.pdf
    • https://static.usrfiles.com/ugd/b8c837_20120a4b11384d389bb93c1fe5809df7.pdf
    • https://static.usrfiles.com/ugd/b8c837_75ba2b75efb54c2ebb19e4767196e22d.pdf
    • https://static.usrfiles.com/ugd/b8c837_9602c0d590e343169dc06a4af66bc733.pdf
    • https://cdn.shopify.com/s/files/1/0433/4456/0281/files/7741163104.pdf
    • https://cdn.shopify.com/s/files/1/0436/0234/6148/files/megibivivarurokoja.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.

FilenameKindSourceSize
font_00_sfnt_off00008555.bin
5f70e2897778dac9837fb0d13fc1c96d0d9e9a5d93a592227d81d18bf3030cc0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8555 5748 bytes
font_01_sfnt_off000098df.bin
52f9b9c5b520c4a72f5b82946b38898f26724e4369ff2cd2f6484b8901e48cbe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98DF 13988 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.