Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cf48f7410a05c90…

MALICIOUS

PDF

70.8 KB Created: 2020-08-22 15:27:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9631413f44febbca536f18db315c3c8f SHA-1: 776340d23c469fa1ca3223acd13c00411371413e SHA-256: 9cf48f7410a05c90125c4f069829ab77b8a66784c63e05417217801532c537ee
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=drawn+to+death+trophy+guide'. The document body, though heavily obfuscated, also contains this URL and references a 'trophy guide', suggesting a social engineering lure. The PDF also exhibits characteristics of a link farm, with numerous external links, including one to a Shopify domain. 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.cc/pify?keyword=drawn+to+death+trophy+guide
    • http://muwegu.nbhp.org/uploads/1/3/1/4/131407408/sidolaj-zezesevadutegos-sosenuparuwaz-lomamawun.pdf
    • http://files.quantumbasscenter.com/uploads/1/3/1/4/131482819/47e1256e36.pdf
    • http://files.butteswcd.org/uploads/1/3/2/7/132740814/redexokinuz.pdf
    • https://cdn.shopify.com/s/files/1/0431/5542/3383/files/history_of_borobudur_temple.pdf
    • https://cdn.shopify.com/s/files/1/0439/5371/7406/files/castlevania_grimoire_of_souls_apk_data.pdf
    • https://cdn.shopify.com/s/files/1/0434/0976/8600/files/gamuvuk.pdf
    • https://cdn.shopify.com/s/files/1/0428/7679/7081/files/81756727696.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ferenap.pdf
    • https://cdn.shopify.com/s/files/1/0429/6769/5509/files/28850891897.pdf
    • https://cdn.shopify.com/s/files/1/0435/6653/0719/files/katumofadajovagi.pdf
    • https://cdn.shopify.com/s/files/1/0432/4202/9215/files/fumenebubedudokob.pdf
    • https://cdn.shopify.com/s/files/1/0429/2077/1750/files/lazudodipax.pdf
    • https://cdn.shopify.com/s/files/1/0433/2657/0664/files/63802097474.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_off0000d827.bin
bbd667c98fb6cdab321a519c967cb251620d55621854f2f645a116d1279e8a3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD827 5204 bytes
font_01_sfnt_off0000e9ea.bin
3109f197e3e38abd30e573d6b75dab21246a1acdc84e3fd57f74e5d518ca149d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE9EA 10696 bytes

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