Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1787259e4dcb686…

MALICIOUS

PDF

33.4 KB Created: 2020-08-30 19:56:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 560695e12c094f3274b60b26a20118ef SHA-1: dcaaa5011b6a4d37b05ee97002cf1b3a6569f283 SHA-256: e1787259e4dcb6864a2242c287ea59f5399ac98953197c2f00c194dc65d1b6f2
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it's a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure related to 'Classics of western philosophy 8th edition pdf'. The primary malicious IOC is the ttraff.com URL, which is likely used to redirect the user to a further stage of the attack.

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=classics+of+western+philosophy+8th+edition+pdf
    • https://cdn.shopify.com/s/files/1/0427/5752/1574/files/vupeveputafogabo.pdf
    • https://cdn.shopify.com/s/files/1/0430/7307/7415/files/8498809714.pdf
    • https://cdn.shopify.com/s/files/1/0439/4817/9611/files/mukiwikisulexetuful.pdf
    • https://static.usrfiles.com/ugd/b8c837_0378499d807e41d8b2a47aa2df882a6c.pdf
    • https://static.usrfiles.com/ugd/735189_c81e3861c7984a188a6831c48df8e2b6.pdf
    • https://static.usrfiles.com/ugd/b8c837_32d8c759d9004088975ea47f8fdf876f.pdf
    • https://static.usrfiles.com/ugd/26938b_cc61fe91a74840a5a70de0835fb41e0b.pdf
    • https://static.usrfiles.com/ugd/8b97dd_f8337e4e8b544b1ba085756fe410ee61.pdf
    • https://static.usrfiles.com/ugd/b8c837_da597b5dc8d14027ba045ec08f63c16b.pdf
    • https://static.usrfiles.com/ugd/5899d5_88288ab0297b4ef2845ac48e8e696a37.pdf
    • https://static.usrfiles.com/ugd/88a84f_7334d7dcaf8547269cd0bec0a7cbd3b4.pdf
    • https://cdn.shopify.com/s/files/1/0429/4351/2732/files/smart_pss_user_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/6698/2561/files/18249619620.pdf
    • https://cdn.shopify.com/s/files/1/0435/2249/0532/files/what_is_billing_zip_code.pdf
    • https://cdn.shopify.com/s/files/1/0429/3391/1705/files/what_are_parameters_in_java.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_off000045dc.bin
d92c775e0d4e14fedda1b9597595730618dd272724fdb6acbcf64649d7fd378f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x45DC 5536 bytes
font_01_sfnt_off000058b1.bin
8ba6da755a7a596baf2d5bab14003fc1252525e3526058a07bff1b98cb980f23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58B1 9496 bytes

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