Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e6d22db8e07af49…

MALICIOUS

PDF

41.6 KB Created: 2020-08-30 14:00:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 908fc30aad4e2b7fcc2e8975e588f587 SHA-1: 7740e73f99df23713d15b5624082ba969dd8a9c7 SHA-256: 1e6d22db8e07af49baf7c6fc38c3d24b88838e2d66a676646b7b999578a5913e
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.cc, disguised as a manual. This redirector likely leads to further malicious content or exploits. The PDF also contains a large number of external links, many pointing to static.usrfiles.com, which is flagged as a link farm. The primary malicious IOC is the redirector URL used in the document body.

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.cc/wix?keyword=inovix+ipocket+manual
    • https://static.usrfiles.com/ugd/e2c6c1_a6382cb9df4b439e9f01291058539c35.pdf
    • https://static.usrfiles.com/ugd/d54300_24c681743bf441758f7f1e8f4e8f97c2.pdf
    • https://static.usrfiles.com/ugd/dc98cc_82695e6718114613a3f0caaa430611be.pdf
    • https://static.usrfiles.com/ugd/353d00_a3d8b8104a384f1792cc9b0e61023a58.pdf
    • https://cdn.shopify.com/s/files/1/0431/6974/2999/files/fevobudevelevo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6986/6133/files/javokebarunabe.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/50214193266.pdf
    • https://cdn.shopify.com/s/files/1/0430/3260/8921/files/gibitilesarog.pdf
    • https://static.usrfiles.com/ugd/e02969_991f9c78656b41af9d354e42f4f9ef65.pdf
    • https://static.usrfiles.com/ugd/a1fb72_0c5c8f040a0e4d49babe3fcaa9eed6c1.pdf
    • https://static.usrfiles.com/ugd/e5a943_1802264bac044f17a96a1ecc1e5da799.pdf
    • https://static.usrfiles.com/ugd/90c678_ff5ddc5a2eed4388b7f590b41846e525.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_off000065a3.bin
49debeb42dbd82e140eb1e949a0d02eae0c0cc04f2a082b72d28521e88aa3151		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65A3 4936 bytes
font_01_sfnt_off00007662.bin
6be014fc147e1b53dd54a16da965c935422d9f4c1ca1d25034df6cb7c5a3566b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7662 10644 bytes

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