Malicious PDF — malware analysis report

Static analysis result for SHA-256 57fe957d3d61e338…

MALICIOUS

PDF

40.6 KB Created: 2020-09-02 06:48:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89d83e42994a4e955190bebced72b30b SHA-1: 04f21887b7c01801cd7b81e6d2e36a2e24deff45 SHA-256: 57fe957d3d61e338e365f22f566f6e009daff16d1a6317abd0a2147372dfdac3
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to its inclusion of a large number of external links, a technique often used for SEO manipulation or to distribute further malicious content. One of the primary links directs to a known malicious redirector infrastructure. While no scripts were extracted, the document body contains obfuscated text and embedded URLs, suggesting a lure to external malicious sites.

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.me/wix?keyword=aws+cli+cloudformation+dry+run
    • https://cdn.shopify.com/s/files/1/0434/1497/8718/files/pd_pph3_4.pdf
    • https://cdn.shopify.com/s/files/1/0438/0655/6322/files/you_cam_5._0.pdf
    • https://cdn.shopify.com/s/files/1/0431/6535/2095/files/57628641686.pdf
    • https://static.usrfiles.com/ugd/d55797_e0eef2dcad5b49bfa09f92090f9c2b0e.pdf
    • https://static.usrfiles.com/ugd/1da05d_9fbb5c4e4fea4a238c68074d030966db.pdf
    • https://static.usrfiles.com/ugd/f103bb_f906c547dce34a3296d4636a29a378e1.pdf
    • https://static.usrfiles.com/ugd/fb5067_dce5e4f66d944fabaa18c100646e15f2.pdf
    • https://static.usrfiles.com/ugd/b8c837_b8cec578f8b942bfbaceeef63fab3667.pdf
    • https://static.usrfiles.com/ugd/a59130_36c2aef1374845b084ac76c7f05b2738.pdf
    • https://static.usrfiles.com/ugd/576447_f3d5eb81d96b43619710681bf7af3ef3.pdf
    • https://static.usrfiles.com/ugd/11f207_553739f34a014ca3977a37fd6a6873e0.pdf
    • https://static.usrfiles.com/ugd/f9d4cd_6b0aec876a7d4fc58995e7736e91e397.pdf
    • https://static.usrfiles.com/ugd/a59130_7c42a422afee41ddbd2bbf4603e0cd85.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_off00005edb.bin
1f7f9f08d18c68514a42764f264263e0e6d67dfc5662eb933a78a90e6461d7c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EDB 5352 bytes
font_01_sfnt_off0000710c.bin
acead2145f602a125de4d05db157b11580c32bb8e4d51e0b923096448cb592bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x710C 11312 bytes

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