Malicious PDF — malware analysis report

Static analysis result for SHA-256 cccdb15982ff8dbf…

MALICIOUS

PDF

41.3 KB Created: 2020-08-30 14:16:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 710acd0c4e21c4346c31085e4b635ea5 SHA-1: 67d1e07f0a873ea9a40ef28e68838460c9996727 SHA-256: cccdb15982ff8dbfa005a08a24fe33f2199c812a7cb69e4a2dd2d39cf5231623
128 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'mp3 song free' and includes the malicious URL, suggesting a lure to download or access malicious content. The presence of a 'download button' heuristic further supports this attack pattern.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=kattipudi+kattipudida+mp3+song+free
    • https://cdn.shopify.com/s/files/1/0435/0813/8150/files/blocked_out_mills_eagles.pdf
    • https://cdn.shopify.com/s/files/1/0428/3580/4319/files/retul.pdf
    • https://cdn.shopify.com/s/files/1/0432/9200/0406/files/fevujobawasovovovesus.pdf
    • https://cdn.shopify.com/s/files/1/0430/3591/8489/files/42553314841.pdf
    • https://cdn.shopify.com/s/files/1/0429/2821/0073/files/nerapusimobezaro.pdf
    • https://static.usrfiles.com/ugd/d01287_268788ab3cfb484cb229d5c9d9de7ef3.pdf
    • https://static.usrfiles.com/ugd/b8c837_86e0a1df3c06419284ae1ae96e394199.pdf
    • https://static.usrfiles.com/ugd/b8c837_f3c26bda3a9f45ebb792a34ea9b5276b.pdf
    • https://static.usrfiles.com/ugd/2f3ac6_37c86662ca0d4414aab35584fc008f4a.pdf
    • https://static.usrfiles.com/ugd/158fb9_f76a3846ca7d409bb60839b8cb7abf6a.pdf
    • https://static.usrfiles.com/ugd/9b33c5_d8c5a036b7424429b630f27fca44d47c.pdf
    • https://static.usrfiles.com/ugd/b8c837_438e1362bc0744e18a14f7939ea4c637.pdf
    • https://static.usrfiles.com/ugd/6116da_c32a8ef3ac9b4762b16e3dd6d1f25949.pdf
    • https://static.usrfiles.com/ugd/0cd3a8_bf2e02d460014c0cb00a74a450799a43.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d49.bin
8c4249f3d5d33aa62727fd1c61af2061f05fa69a55c8df302fc874686e1325db
pdf-font-stream PDF embedded font (sfnt) at offset 0x4D49 5528 bytes
font_01_sfnt_off00005ffb.bin
7b5f1aa5d9e7443e149d50eef1be0bb96a7db190ae3d23cbbbdc58a1c5fcea36
pdf-font-stream PDF embedded font (sfnt) at offset 0x5FFB 2480 bytes
font_02_sfnt_off00006aa4.bin
f33d7b6a04a01b72d85b616e6d76f3e2c77226488bbba9c4d01a622c8005bf88
pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA4 14640 bytes