Malicious PDF — malware analysis report

Static analysis result for SHA-256 d20c030d582b0b0d…

MALICIOUS

PDF

45.2 KB Created: 2020-08-31 09:00:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d65b94d28de032290d28a9ca7e52a30 SHA-1: 52d5e989addfad12961c490811094e875434f95e SHA-256: d20c030d582b0b0d7a23d7903297beaaf7a190e8f925a1ecb1cc9f65293c5a25
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of a large number of embedded links, characteristic of a link farm or SEO manipulation. One of these links, https://ttraff.cc/wix?keyword=5e+ravnica+feats, points to known malicious redirector infrastructure. The document body contains obfuscated text and URLs, further supporting the malicious intent. No scripts were extracted, limiting the analysis of specific payload delivery mechanisms.

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=5e+ravnica+feats
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/17782870250.pdf
    • https://cdn.shopify.com/s/files/1/0437/3911/9765/files/chammak_challo_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0432/7600/9622/files/jumulemibodutif.pdf
    • https://cdn.shopify.com/s/files/1/0441/0392/5912/files/gixivoninemifivebexuka.pdf
    • https://static.usrfiles.com/ugd/0aab01_fffce583dd0c4189a67132ea95cde2fb.pdf
    • https://static.usrfiles.com/ugd/724fb5_ebc1fbfcc7814ba9826deba16d0e4f33.pdf
    • https://static.usrfiles.com/ugd/0d002d_5651531bea754ae5b8c92f6ae3caa87f.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96226605796.pdf
    • https://cdn.shopify.com/s/files/1/0430/6137/9221/files/19479517495.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_off0000737c.bin
faf90763189a621be2b08298c1b881a831f6e2c5d7224a931bcdec91f6cb2c9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x737C 4932 bytes
font_01_sfnt_off00008456.bin
07381c7b9d26763cd5b61c0ea7bf87ef6b7ec4d08f5f44df7370d2bc1a9c202b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8456 10612 bytes

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