MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm and a primary redirector URL, indicating a phishing or malicious redirection attempt. The document body, though partially corrupted, suggests a lure related to 'activation energy diagram worksheet answers'. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous external links, including one to a known malicious redirector, supports this assessment. The primary malicious IOC is the redirector URL.
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.com/pify?keyword=activation+energy+diagram+worksheet+answers
- http://files.vitalfitness.info/uploads/1/3/1/4/131408572/veladezapu.pdf
- http://files.flogrips.com/uploads/1/3/2/6/132682974/3649491.pdf
- http://files.kevinanglade.com/uploads/1/3/1/8/131856844/7c1eba2fa301.pdf
- http://biderewar.gilpinlibrary.org/uploads/1/3/0/7/130776265/3e5249944d5a7.pdf
- http://files.swaggerstateathletics.com/uploads/1/3/1/6/131637656/3f8e38e3c5ab2.pdf
- https://cdn.shopify.com/s/files/1/0437/2296/5160/files/pm_awas_yojana_2020_form.pdf
- https://cdn.shopify.com/s/files/1/0434/9755/4084/files/49506077272.pdf
- https://cdn.shopify.com/s/files/1/0451/9510/0311/files/agnieszka_szulim_piotr_woniak_starak.pdf
- https://cdn.shopify.com/s/files/1/0437/1415/0553/files/bibla_ne_shqip.pdf
- https://cdn.shopify.com/s/files/1/0428/9160/8227/files/91207782135.pdf
- https://cdn.shopify.com/s/files/1/0428/8095/8617/files/92842493179.pdf
- https://cdn.shopify.com/s/files/1/0431/7328/1948/files/luxaganaxifazuxuxu.pdf
- https://cdn.shopify.com/s/files/1/0450/8326/3141/files/always_bon_jovi_partitura_piano.pdf
- https://cdn.shopify.com/s/files/1/0432/1958/3138/files/56857835897.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_off000062f1.bin4f09181b8c64923660dc2ec4eeaef8cfc857d118f25f883358918877261c60ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62F1 | 5628 bytes |
font_01_sfnt_off000075fd.bin1dbacc0b7d7b7588ef10e60998402e9f21b4a3bc7496b8690a34a39725d8bd64 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75FD | 10204 bytes |
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