MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Knock on door sound' and the malicious URL, suggesting a lure. The presence of numerous external PDF links also indicates a link farm, likely for SEO poisoning or to distribute malicious content. The heuristic 'SE_CALLBACK_LURE' further supports a phishing or scam pretext.
Heuristics 4
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
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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.com/pify?keyword=knock+on+door+sound
- http://files.schnepfsveggiedrivethru.com/uploads/1/3/2/6/132682899/5d89d46.pdf
- http://files.cjphu.com/uploads/1/3/1/4/131410736/norokesov_zuvaxunitolinab_merak_nutawumekaso.pdf
- http://files.hopelutheranwarren.com/uploads/1/3/1/4/131482864/3547959.pdf
- https://cdn.shopify.com/s/files/1/0434/8300/5078/files/remaxuziguzipimizemaguw.pdf
- https://cdn.shopify.com/s/files/1/0434/5276/0224/files/sozopozijosupoxilidonuvu.pdf
- https://cdn.shopify.com/s/files/1/0430/4610/9341/files/momadijewotas.pdf
- https://cdn.shopify.com/s/files/1/0440/7649/9096/files/xirumupexexatadizora.pdf
- https://cdn.shopify.com/s/files/1/0429/8863/4263/files/dogakokujemotuduboseru.pdf
- https://cdn.shopify.com/s/files/1/0432/3937/5012/files/35500306284.pdf
- https://cdn.shopify.com/s/files/1/0428/0044/7655/files/78461202892.pdf
- https://cdn.shopify.com/s/files/1/0432/6142/7867/files/moxonomubelizanawi.pdf
- https://cdn.shopify.com/s/files/1/0433/8181/7495/files/76323890808.pdf
- https://cdn.shopify.com/s/files/1/0431/5525/9560/files/44111231728.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_off00004755.bin225038e5fb74cfcbf8818ecd1bc52ce81d4f2aec8a20cf87dedd2fa34f1e3bba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4755 | 4724 bytes |
font_01_sfnt_off00005777.bind7cc26c3d2c1b12acb90a9e2209dc2301bd0f076c5f9893e58f13833353acf78 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5777 | 10440 bytes |
font_02_sfnt_off00007b1f.bin4a1da061204ffeacf37fc13f7d5dbd4ebbee4cb191ea8a5d14a92661125848e7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B1F | 16272 bytes |
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