MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to Shopify domains but are likely part of a link farm to improve SEO for malicious content. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is presented to the user as 'Classical piano sheet music for beginners'. This indicates a social engineering attempt to drive traffic to malicious sites.
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.cc/pify?keyword=classical+piano+sheet+music+for+beginners
- http://lobafoge.mylivgrace.com/uploads/1/3/1/3/131381167/37813bbac3.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wexidemunuviviradepinitim.pdf
- https://cdn.shopify.com/s/files/1/0433/8168/6423/files/64784823939.pdf
- https://cdn.shopify.com/s/files/1/0440/2439/7989/files/87030865223.pdf
- https://cdn.shopify.com/s/files/1/0436/6319/6310/files/xizekewewu.pdf
- https://cdn.shopify.com/s/files/1/0433/6559/7342/files/wopululizakotitomew.pdf
- https://cdn.shopify.com/s/files/1/0434/7727/0692/files/pathophysiology_of_asphyxia.pdf
- https://cdn.shopify.com/s/files/1/0431/6089/5650/files/wowakinokam.pdf
- https://cdn.shopify.com/s/files/1/0433/9279/4774/files/23128342087.pdf
- https://cdn.shopify.com/s/files/1/0437/5982/9149/files/93986094952.pdf
- https://cdn.shopify.com/s/files/1/0430/5597/2501/files/astm_b117_standard.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/
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006c16.binff3a159d3a54261ff7f7f777a1eaacb4cd4ef99b6e1f4744e24896352bc8794d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C16 | 5476 bytes |
font_01_sfnt_off00007e7b.bin6f05734f0223e1f789e0807209ef7239398fd15c8f79cadb133e330b38de80f3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E7B | 10664 bytes |
font_02_sfnt_off0000a2eb.bin1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA2EB | 4324 bytes |
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