Malicious PDF — malware analysis report

Static analysis result for SHA-256 204c641feae8eafa…

MALICIOUS

PDF

42.6 KB Created: 2020-08-29 01:28:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67a85f8ef19dc17e97ff7756d98bb2f6 SHA-1: 0b80b35f90235ae9d66cd9adc851ac404195333c SHA-256: 204c641feae8eafa756156f50086c223d6e9eb20864bd7ac5d00e4564edbc4af
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one specifically identified as a malicious redirector. The document body is heavily obfuscated and appears to be a lure, possibly related to SEO manipulation or a phishing attempt. The primary malicious indicator is the link to `https://ttraff.ru/wix?keyword=terre+blanche+de+larnage`, which is flagged as a known malicious redirector.

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.ru/wix?keyword=terre+blanche+de+larnage
    • https://cdn.shopify.com/s/files/1/0435/5640/5411/files/36037362890.pdf
    • https://cdn.shopify.com/s/files/1/0448/5015/1584/files/franchi_al_48.pdf
    • https://cdn.shopify.com/s/files/1/0428/4874/7676/files/29339148026.pdf
    • https://static.usrfiles.com/ugd/b8c837_16d63047691748e19d09bcab43da2467.pdf
    • https://static.usrfiles.com/ugd/b8c837_50d717412911452c9e850a5bb5fc6dc9.pdf
    • https://static.usrfiles.com/ugd/b8c837_e2b46be3796749acbe3f183c6cc8d51a.pdf
    • https://static.usrfiles.com/ugd/b8c837_ebfe44e4ad984da08e15a64926d64bb2.pdf
    • https://static.usrfiles.com/ugd/b8c837_82ffa41a2f0a4ea58ef08650f38e5c37.pdf
    • https://static.usrfiles.com/ugd/b8c837_a06eea6c7f914cccb98efea958a5012a.pdf
    • https://static.usrfiles.com/ugd/b8c837_6409ea51f83f4bb9a4aa6508037dd078.pdf
    • https://static.usrfiles.com/ugd/b8c837_5f19b026a2444fb8a703bc85c9544f80.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_off00005cdd.bin
38c397fb3e18366e83e9fd362293a405a6af006e5272a51963e9ed8cc5a72728		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CDD 5112 bytes
font_01_sfnt_off00006e2e.bin
5763bc109076888b39da86adbf91fdfcff3c60d89d115993a1cbfe4c76f0eb8b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E2E 16152 bytes

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