MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous links, including one pointing to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, suggests a lure related to a 'worksheet answers' document. The ML classifier strongly indicates maliciousness, and the presence of a redirector link supports a phishing or social engineering attack pattern.
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/wb?keyword=race%20to%20ratify%20icivics%20worksheet%20answers
- http://files.mustardseedthriftonline.com/uploads/1/3/0/7/130740521/nelidejodata.pdf
- http://files.crossfitunsung.com/uploads/1/3/1/3/131380850/3719005.pdf
- http://files.studiobarcelonamke.com/uploads/1/3/1/4/131407214/9c5cf28473058.pdf
- http://files.thearborsatparsippany.com/uploads/1/3/2/6/132681743/d74e30308e6e6.pdf
- http://files.thearborsatparsippany.com/uploads/1/
- https://cdn.shopify.com/s/files/1/0430/9945/5642/files/867358305.pdf
- https://cdn.shopify.com/s/files/1/0432/1912/4382/files/tamasotedepiwujifu.pdf
- https://cdn.shopify.com/s/files/1/0431/8894/5064/files/zunopetew.pdf
- https://cdn.shopify.com/s/files/1/0434/2661/1357/files/dejewone.pdf
- https://cdn.shopify.com/s/files/1/0431/0866/3456/files/98129527160.pdf
- https://cdn.shopify.com/s/files/1/0433/5026/1911/files/fopotamojojeliv.pdf
- https://cdn.shopify.com/s/files/1/0431/7465/8216/files/lunijomozesomuj.pdf
- https://cdn.shopify.com/s/files/1/0431/1485/6610/files/26038210584.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/44368867506.pdf
- https://cdn.shopify.com/s/files/1/0431/6174/7605/files/779754975.pdf
- https://cdn.shopify.com/s/files/1/0430/7661/6353/files/4379837933.pdf
- https://cdn.shopify.com/s/files/1/0429/9948/0473/files/kejodizuliviniji.pdf
- https://cdn.shopify.com/s/files/1/0429/9682/6273/files/tasikoberufowis.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.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000879c.bin145bfd456c5056219ed8d05e07356f21db58902dfb13fc5bbd0807319efcaf19 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x879C | 5052 bytes |
font_01_sfnt_off000098d6.bin11d501e3bd5b7479875f53022752a8a5a1f54382c0ad91b94b6241fe2deb6db9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x98D6 | 10440 bytes |
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