Malicious PDF — malware analysis report

Static analysis result for SHA-256 2870ab79b45536ae…

MALICIOUS

PDF

40.1 KB Created: 2020-08-30 14:25:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e0687fa4bf00ec5e182914a37ad8a29 SHA-1: 79fe0767889c4f676f9a549f89660567b53f9665 SHA-256: 2870ab79b45536ae5a759b3b63513967930d21df2879a933c42d4e5a4a503f85
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, with a critical heuristic firing indicating a PDF link farm. One of the primary links points to a known malicious redirector, ttraff.com, which is likely part of an SEO poisoning campaign to drive traffic to malicious sites. The document body, though heavily obfuscated, contains the same suspicious URL.

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=secrets+of+my+hollywood+life+family+affairs+pdf
    • https://static.usrfiles.com/ugd/b8c837_de8101c28447443aa733ff3c6c638ccb.pdf
    • https://static.usrfiles.com/ugd/33a16d_155dce8e146a40279864db8e4b748c60.pdf
    • https://static.usrfiles.com/ugd/b8c837_2543ab1ed7d14a999ebfdb3c54418f23.pdf
    • https://static.usrfiles.com/ugd/6f53d7_f379775c156a43d79997fe1d756022f0.pdf
    • https://static.usrfiles.com/ugd/ab0441_b0060c5aa98e4fc699f4769db8b00d08.pdf
    • https://static.usrfiles.com/ugd/b8c837_5cf2c20355124479abdb0d95ffc0040b.pdf
    • https://static.usrfiles.com/ugd/b8c837_0b5d268b5d1e4c19aa845c57b46c5a89.pdf
    • https://static.usrfiles.com/ugd/b8c837_365b0c8ce601401aaa14e73d2e74c434.pdf
    • https://static.usrfiles.com/ugd/451461_bdfab3095eb34882b37a3afdc9b506ba.pdf
    • https://static.usrfiles.com/ugd/8b2c09_448018f781454180b141c0a80bde8587.pdf
    • https://static.usrfiles.com/ugd/b8c837_9fbb5d3da2d44a22b32840ff8658b723.pdf
    • https://static.usrfiles.com/ugd/2ac701_b57d588916f44fff9ab01d5938318360.pdf
    • https://cdn.shopify.com/s/files/1/0431/6112/5013/files/antonyms_examples_list.pdf
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/gipirezevejoriza.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.

FilenameKindSourceSize
font_00_sfnt_off00004f85.bin
8fb825fb3be1b4a3383ceaec7a5df9c0825cc1874d6d5eb5d4232b372c255803		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F85 5372 bytes
font_01_sfnt_off000061da.bin
b19e3b8f6b2163f37b1146da399f79802bc5011cb434dceb32fb344602230140		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61DA 10180 bytes
font_02_sfnt_off000084ac.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84AC 4324 bytes

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