MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document contains numerous links to external websites, including a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting it is a 'work calculations worksheet answer key' to lure users into clicking these malicious links. The presence of many PDF links and a critical heuristic firing for a malicious redirector indicates a high likelihood of this document being used for phishing or malware distribution.
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.link/wix?keyword=work+calculations+worksheet+answer+key
- http://lajivelap.artebom.com/uploads/1/3/2/6/132696067/3972911.pdf
- http://files.kineticleagues.com/uploads/1/3/2/6/132695633/foguguja_liwif.pdf
- http://files.chlaudit.com/uploads/1/3/1/4/131437474/lugodelax-rawolobusore-rusinonolemumev-vonaforu.pdf
- http://files.mirelajoja.com/uploads/1/3/1/4/131454207/43d0ccbfa6a.pdf
- http://files.mrsjonescoldbrew.com/uploads/1/3/1/8/131860125/zizipos.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cbabcf4e-f869-46ab-b623-791886c425c1.filesusr.com/ugd/595093_0d11a334b4124ff6aa31f58956b3c806.pdf?index=true
- https://b6c692ae-a0a5-4f4b-8336-5853969cc8f9.filesusr.com/ugd/3bf302_e6b3d63565b94589b26d10d137d0dc2d.pdf?index=true
- https://96a4d579-2da6-4ab9-b8d0-f698dccb18e8.filesusr.com/ugd/5926b4_22e84ba26c7d480aba7ee889cb553b7c.pdf?index=true
- https://abddeace-f8ba-4a23-829d-9c8d6da9aa2d.filesusr.com/ugd/40b9e6_9cc658d1ab124141ba9c6f04477c42b4.pdf?index=true
- https://68b85305-55fe-4fe1-8996-6fd30aa34f6a.filesusr.com/ugd/f6a907_435ee2557e074ab9973cb3b2316d00c4.pdf?index=true
- 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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005ffd.bin6594f85833dc5d57155c88c2e8964a27b642d2d5aabf51445e9662a897cceb58 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FFD | 5156 bytes |
font_01_sfnt_off0000719f.bin98f372786134558bcfe63b84260222f63938c7a384492d788451c4b7e660ed27 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x719F | 10460 bytes |
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