MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF contains multiple links, including one pointing to known malicious redirector infrastructure (https://ttraff.cc/pify?keyword=tutorial+bascom+avr+espa%25C3%25B1ol+pdf). The heuristic 'SE_REMOTE_SUPPORT_LURE' suggests the document might be trying to trick the user into installing or using remote support tools, which is a common tactic for social engineering attacks. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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Remote-support tool lure high SE_REMOTE_SUPPORT_LUREDocument instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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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=tutorial+bascom+avr+espa%25C3%25B1ol+pdf
- http://podumik.himalayanhopecharitablefoundation.com/uploads/1/3/0/7/130776485/pevodup.pdf
- http://makewo.pyester.com/uploads/1/3/1/4/131438464/3867011.pdf
- http://files.cv2r.org/uploads/1/3/1/4/131412558/9496926.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://cdn.shopify.com/s/files/1/0429/1087/5815/files/9969058993.pdf
- https://cdn.shopify.com/s/files/1/0434/7278/1478/files/rsf_pool_hours.pdf
- https://cdn.shopify.com/s/files/1/0448/3586/4736/files/ccna_security_study_guide_tim_boyles.pdf
- https://cdn.shopify.com/s/files/1/0434/2166/3397/files/wadoxedugedigukeforelupew.pdf
- https://cdn.shopify.com/s/files/1/0440/3917/6342/files/3247393632.pdf
- https://cdn.shopify.com/s/files/1/0430/3169/1421/files/5046109119.pdf
- https://cdn.shopify.com/s/files/1/0435/1256/1819/files/sunedasodifuxogetefu.pdf
- https://cdn.shopify.com/s/files/1/0436/4691/0617/files/32874158157.pdf
- https://cdn.shopify.com/s/files/1/0438/8116/9051/files/mametone.pdf
- https://cdn.shopify.com/s/files/1/0436/9294/9658/files/99322802481.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mesibilefonupas.pdf
- https://cdn.shopify.com/s/files/1/0432/6971/8182/files/gentlehands_book_chaper_1_summary.pdf
- https://cdn.shopify.com/s/files/1/0428/3400/2086/files/pegedisuwomesifo.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/babasetaxoguvivowe.pdf
- https://cdn.shopify.com/s/files/1/0437/3273/0008/files/21769289716.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_off00005c8b.bin0fd3da9458629a1627c03cccff721f88fb5178a4bc5ae5fde037e12a21cd318f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C8B | 5440 bytes |
font_01_sfnt_off00006ee7.bin3e69a3568dee78904589ac20f48b45e75c891af0600c78d5b9851557312ea7a1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6EE7 | 11276 bytes |
font_02_sfnt_off0000952a.bin1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x952A | 4324 bytes |
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