MALICIOUS
120
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm designed to appear as a legitimate 'algorithm complexity cheat sheet' but redirects to a malicious domain. The primary malicious URL is https://ttraff.ru/pify?keyword=algorithm+complexity+cheat+sheet+pdf, which is flagged as a redirector. The document body, though heavily obfuscated, contains this URL and numerous other benign-looking Shopify links, likely to improve search engine ranking and mask malicious activity. No scripts were extracted from this sample.
Heuristics 3
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Embedded URL info EMBEDDED_URLOne 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=algorithm+complexity+cheat+sheet+pdf
- http://files.accsyracuse.org/uploads/1/3/1/3/131384709/1ceff8c4520ff.pdf
- http://files.danielphotographyltd.com/uploads/1/3/1/4/131453674/ce1fd.pdf
- http://files.greenpowersystem.net/uploads/1/3/2/8/132815183/ab302cc9bf17d9.pdf
- http://wilanuni.arminalamanna.com/uploads/1/3/1/4/131453109/rojuzod-wuxis-fotof-zorarikusa.pdf
- http://ketesek.poweroftheflowers.com/uploads/1/3/1/3/131384401/5585e240ca79.pdf
- https://cdn.shopify.com/s/files/1/0431/5817/5895/files/70416408434.pdf
- https://cdn.shopify.com/s/files/1/0431/3733/5464/files/12501997878.pdf
- https://cdn.shopify.com/s/files/1/0435/2176/9627/files/air_washer_system_design.pdf
- https://cdn.shopify.com/s/files/1/0440/6041/0021/files/34020354412.pdf
- https://cdn.shopify.com/s/files/1/0431/0574/7095/files/3009750044.pdf
- https://cdn.shopify.com/s/files/1/0437/2529/1671/files/30291990832.pdf
- https://cdn.shopify.com/s/files/1/0432/0047/9391/files/faxefosijakadoros.pdf
- https://cdn.shopify.com/s/files/1/0430/0272/4506/files/borex.pdf
- https://cdn.shopify.com/s/files/1/0451/2422/3141/files/cadenas_de_markov_ejercicios_resueltos.pdf
- https://cdn.shopify.com/s/files/1/0429/2762/0249/files/31123039476.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005f45.bin8ca1deac3ef3003cf76904e3e4bb6a8c93d87e1d82e7d7e624793d2aeff4ee42 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F45 | 5728 bytes |
font_01_sfnt_off000072af.bin8080e25310b2e8f2e6e15dcdbea9c7dbccbd2d100bc7eaea8a13e6766e6cf6f1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72AF | 16344 bytes |
font_02_sfnt_off0000a557.bin84a0ab111ae67c7570bc6eb778488b810f8f4c7f73d79f9b0e58fd164bce43bc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA557 | 16500 bytes |
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