MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that point to a known malicious redirector, ttraff.ru. The document body, though heavily obfuscated, contains text fragments suggesting it is a lure related to employment appeals. The presence of numerous links to Shopify PDFs, some of which are benign, indicates a potential SEO poisoning or link farm strategy to distribute the malicious PDF. The ML classifier strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
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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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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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=unfair+dismissal+appeal+letter+template+uk
- http://leneke.spectrumradiopettswood.com/uploads/1/3/0/7/130776795/mesirivotabirebo.pdf
- https://cdn.shopify.com/s/files/1/0428/9318/1095/files/daketisopuzarowudob.pdf
- https://cdn.shopify.com/s/files/1/0432/3331/2925/files/carol_of_the_bells_piano.pdf
- https://cdn.shopify.com/s/files/1/0427/7954/1671/files/57936892783.pdf
- https://cdn.shopify.com/s/files/1/0429/6871/1321/files/first_500_prime_numbers.pdf
- https://cdn.shopify.com/s/files/1/0434/7356/7894/files/susiwov.pdf
- https://cdn.shopify.com/s/files/1/0427/5834/0774/files/22904374630.pdf
- https://cdn.shopify.com/s/files/1/0451/1825/9365/files/2015_nissan_sentra_owners_manual.pdf
- https://cdn.shopify.com/s/files/1/0429/4203/8182/files/secure_vpn_premium_free_apk.pdf
- https://cdn.shopify.com/s/files/1/0464/5791/3512/files/38860489509.pdf
- https://cdn.shopify.com/s/files/1/0433/1814/9285/files/anywhereusb_5_firmware.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_off0000ccfd.binb7f317aa0f29cd34df008dc84d8f376d2685882a57a4a5cd0d86477d0adf885a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCFD | 2828 bytes |
font_01_sfnt_off0000d6f8.binc6f6222945c7b6bd679a3d67395cc9e245a5f73f40b7181372480638277815e0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6F8 | 5240 bytes |
font_02_sfnt_off0000e8b8.bin65cc6176676c45bfee28e23875e8d59505e89704796c965b18c32521b398a46e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8B8 | 9868 bytes |
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