Malicious PDF — malware analysis report

Static analysis result for SHA-256 e99ed244c2781b5f…

MALICIOUS

PDF

40.9 KB Created: 2020-08-29 16:18:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44008c458492cf3850734077aed93454 SHA-1: c80f915b3cb0e4abaee8938c80dfdc90557ffbeb SHA-256: e99ed244c2781b5fab8a28f392e01feae84ca202d7c9734103bc3756ace8b7e1
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.com, disguised with a seemingly benign keyword. The document also exhibits characteristics of a link farm, embedding numerous external PDF links, many of which point to Shopify-hosted files. This suggests a campaign focused on driving traffic to malicious sites, likely for phishing or malware distribution. No scripts were extracted from this sample.

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=st+louis+blues+tenor+sax+sheet+music
    • https://creative
    • https://cdn.shopify.com/s/files/1/0434/4319/1969/files/fativuri.pdf
    • https://cdn.shopify.com/s/files/1/0433/0189/6347/files/dilirom.pdf
    • https://cdn.shopify.com/s/files/1/0428/9763/7535/files/somewhere_over_the_rainbow_uke_chords.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/pujobizunedubonas.pdf
    • https://cdn.shopify.com/s/files/1/0435/3284/5207/files/mewoxoxoxi.pdf
    • https://static.usrfiles.com/ugd/b8c837_1f7deda28ff6422481ffdd6e65b38894.pdf
    • https://static.usrfiles.com/ugd/b8c837_4ffec7ef8bf841e1aef717cf53b69edb.pdf
    • https://static.usrfiles.com/ugd/b8c837_9d379311d8dd469b92f98d7ae70849f9.pdf
    • https://static.usrfiles.com/ugd/b8c837_bb1e6880f2654da2884085ebdeb17af9.pdf
    • https://static.usrfiles.com/ugd/b8c837_a549923e13cf4248b8a2f4a604685c78.pdf
    • https://static.usrfiles.com/ugd/b8c837_6dc7f39e312144e18ce24ed2f66e7f4e.pdf
    • https://static.usrfiles.com/ugd/b8c837_1239dc3b41c64075bf518c58abdd1436.pdf
    • https://static.usrfiles.com/ugd/b8c837_c63fb67687a04688b2c9727766177a75.pdf
    • https://static.usrfiles.com/ugd/d01287_3eab1368f30d453e9bd37f68f73075c6.pdf
    • https://static.usrfiles.com/ugd/e8506d_a1e839a2b6f74552ba78c4bac36f64dc.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_off000054b7.bin
2b0c396866a7429ef8947d90f4295cd5acf989ebf1f43c1f365853a771796765		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54B7 5348 bytes
font_01_sfnt_off000066ae.bin
43aa99fd2e0a010c20a5b2a4c79a8c4f2d83ff55c12e5dc7aa9ff27a89eb91c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66AE 14764 bytes

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