Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd69b44a567fdb9c…

MALICIOUS

PDF

39.7 KB Created: 2020-09-05 08:05:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00548864cb4eddd234966ad2b42d7ac4 SHA-1: 937c173b88954c93b263ebbed388f9415268ab16 SHA-256: fd69b44a567fdb9c90d4596bfd1a6f9e95a1db88236d36795329fc2b148b8945
128 Risk Score

Malware Insights

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

The PDF contains a prominent link that redirects to malicious infrastructure, disguised with a lure for free piano sheet music. This indicates a phishing or social engineering attack aimed at tricking users into visiting a harmful site. The presence of a "Download Button" heuristic further supports the social engineering pretext. No scripts were extracted, limiting the analysis of further payload delivery.

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.link/pify?keyword=advanced+christmas+piano+sheet+music+free
    • https://cdn.shopify.com/s/files/1/0428/6251/0236/files/bahubali_1_songs_in_masstamilan.pdf
    • https://cdn.shopify.com/s/files/1/0454/3217/6808/files/jipufepipa.pdf
    • https://cdn.shopify.com/s/files/1/0431/4529/8077/files/68067714708.pdf
    • https://static.usrfiles.com/ugd/b8c837_292b33e770de484aaf91ce4a74933f5e.pdf
    • https://static.usrfiles.com/ugd/b8c837_2611dc6242dd45be8fba7aff5a1e0f95.pdf
    • https://static.usrfiles.com/ugd/b1b3ad_127e282088c94b08ac9544671a81a3c8.pdf
    • https://static.usrfiles.com/ugd/69695d_68c21129ec76442990a81bd5dfada43c.pdf
    • https://static.usrfiles.com/ugd/89064d_c2f58a0318034f68adbfc83f8c3c54a8.pdf
    • https://static.usrfiles.com/ugd/362633_46ffaac0c4f5469eb16fc666092e41e0.pdf
    • https://static.usrfiles.com/ugd/7cefa9_2095dbd2a96a40c9b5aabc5a79cf4575.pdf
    • https://static.usrfiles.com/ugd/b91566_b16565cd9a9b42e6911f2f91df91624c.pdf
    • https://static.usrfiles.com/ugd/b8c837_6ea55b7faf6f4a14b06759d01b5ff17b.pdf
    • https://static.usrfiles.com/ugd/0baf77_682a52fead1e413396948bb6528d748f.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_off00005ce0.bin
dfe067f71a1e5b149ab45d18df0d52cb65004ebe35c2e87c345e06e1f8f91379		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CE0 5412 bytes
font_01_sfnt_off00006f24.bin
6a74f3f6c0ca274674a76ed68331dd1d8995079cda87de97dd4a5421914e2553		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F24 10288 bytes

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