Malicious PDF — malware analysis report

Static analysis result for SHA-256 48c9ec5dc5847ba5…

MALICIOUS

PDF

42.3 KB Created: 2020-08-03 05:18:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49ec8dd15b7fa46fc6e3d73123cb297a SHA-1: 61a6bf8e25e557c31ba847ac07cd9fdc92a3de3a SHA-256: 48c9ec5dc5847ba5f3c63a26ac91ac60bc505dc7c4eb20504ffbb56db7f2fad3
120 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with a critical heuristic firing for a malicious redirector link to 'ttraff.com'. This indicates a likely phishing or malware distribution attempt. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. The presence of numerous Shopify-hosted PDF links suggests an attempt to obscure the true malicious destination.

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.com/pify?keyword=strayer+ways+of+the+world+pdf
    • http://files.katienellegregory.com/uploads/1/3/2/6/132695455/7540000.pdf
    • http://files.merakisalonnj.com/uploads/1/3/0/9/130969674/furimed.pdf
    • http://files.epiphanyhairsalon.net/uploads/1/3/2/8/132814900/xugixod.pdf
    • http://files.sobabaseball.net/uploads/1/3/2/6/132681772/3383051.pdf
    • http://files.myworklifeharmony.com/uploads/1/3/2/6/132695546/ae4e7e8230ae70.pdf
    • https://cdn.shopify.com/s/files/1/0437/7824/4765/files/voboripekevejugitibawok.pdf
    • https://cdn.shopify.com/s/files/1/0431/6377/9240/files/49269199347.pdf
    • https://cdn.shopify.com/s/files/1/0432/2449/8343/files/60226468164.pdf
    • https://cdn.shopify.com/s/files/1/0434/7274/8709/files/51229287536.pdf
    • https://cdn.shopify.com/s/files/1/0437/1025/1176/files/86587037326.pdf
    • https://cdn.shopify.com/s/files/1/0436/1761/6034/files/87662431482.pdf
    • https://cdn.shopify.com/s/files/1/0431/7141/4173/files/20367401042.pdf
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/lipesaros.pdf
    • https://cdn.shopify.com/s/files/1/0431/7315/0869/files/goldtooth_wow_classic.pdf
    • https://cdn.shopify.com/s/files/1/0427/9386/1279/files/luwufiwojefatinuj.pdf
    • https://cdn.shopify.com/s/files/1/0433/7015/2088/files/49244574251.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_off000065fd.bin
e4b990b60db5143e4148af0881ed8ae949238a974ea51006015c0d22ffec2e84		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65FD 5428 bytes
font_01_sfnt_off00007885.bin
0a5d3215f0d6627f76521ff58ed6182165c3cfc4fb8b29d15975127071d31502		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7885 10684 bytes

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