Malicious PDF — malware analysis report

Static analysis result for SHA-256 23267855f7bca223…

MALICIOUS

PDF

38.1 KB Created: 2020-07-11 19:05:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7512cdbbb30d4647628763615f0c925b SHA-1: 8ac76f1d52e6800e9e01fa3b8217955f673a755f SHA-256: 23267855f7bca223457f24c206f9c0eb6d46607108df2e9d714005b192d2e14a
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to redirectors and link farms designed to obscure the final destination. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags a link to traff.ru, indicating malicious intent. The document body, though partially corrupted, contains text that appears to be a lure for a song download, further supporting the phishing or scamming nature of the document. The numerous links suggest a broad attempt to distribute malicious content.

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.ru/pify?keyword=sezai+karako%25C3%25A7+ey+sevgili+indir
    • http://files.fulcrumboat.com/uploads/1/3/1/4/131412858/036c8c8100e33bf.pdf
    • http://files.officialmrsmith.com/uploads/1/3/0/9/130968937/tuvujulugot-dilufebu-lojaradux.pdf
    • http://files.cancercure-fund.com/uploads/1/3/0/8/130874398/towonopokejajisoran.pdf
    • http://files.kimwattspsychic.com/uploads/1/3/1/4/131437831/3505097.pdf
    • http://files.cezannelandscapediscovery.com/uploads/1/3/1/4/131453943/wufutixu.pdf
    • http://files.shopykapparel.com/uploads/1/3/2/6/132681343/nuxumiwexebena.pdf
    • https://suvodari.files.wordpress.com/2020/07/58917241695.pdf
    • https://fipabimedimi.files.wordpress.com/2020/07/35528732079.pdf
    • https://wilopag.files.wordpress.com/2020/06/63002479707.pdf
    • https://cdn.shopify.com/s/files/1/0431/6083/0116/files/56261822493.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1261535930.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lutekalejore.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/libuzab.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/ropuxikasafomudixaxo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9646434013.pdf
    • https://cdn.shopify.com/s/files/1/0431/2032/8864/files/11056424361.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_off000053e5.bin
d51451da00b1992d89f4f701a4e2de0bd7e3014656183dc9968bd6a2fdb7aa17		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53E5 5264 bytes
font_01_sfnt_off000065d5.bin
0d23ccf0ac626c4e7637c9b2018ca00d8dcd87d518913f3110e53b300a2fd138		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65D5 11276 bytes

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