MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains multiple embedded links, with one identified as a malicious redirector. The primary malicious URL, https://ttraff.com/pify?keyword=uc+browser+pro+apk+2018, is likely used to funnel users to a phishing or malware distribution site. The document body, though heavily obfuscated, contains references to the malicious URL and other PDF files hosted on various domains. The presence of a link farm and a high ML classifier score further support the malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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=uc+browser+pro+apk+2018 In PDF document text
- http://mulaza.blaine-bacchiocchi.com/uploads/1/3/2/8/132814930/dapalenemuwukos.pdfIn PDF document text
- http://files.missionboostconsulting.com/uploads/1/3/0/8/130874307/53a04defa6.pdfIn PDF document text
- http://noviseta.gokulsarma.com/uploads/1/3/1/1/131163667/2060835.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0433/2018/0894/files/vekor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1637/2892/files/vabine.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4570/7166/files/65257964772.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8201/4108/files/bohat_tta_chud_tta_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6214/0840/files/30312421113.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7871/2472/files/jaxivigebodarapovozesulaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0363/9970/files/download_asterix_bahasa_indonesia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0083/9841/files/pedazajaluj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1552/7833/files/suwunediwanuz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1262/0447/files/jonat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1009/7313/files/75553715215.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000062bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62BF | 5256 bytes |
SHA-256: bf5ac17f9fc0246766ced62d9f4a8fbe985a77e60131c13a884b4cbc9ac9a4ca |
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font_01_sfnt_off000074b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74B1 | 10636 bytes |
SHA-256: b9a356a5169198c34b8508c62674798ae4a489c3eccaf9d274d19ea084a6867a |
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font_02_sfnt_off00009878.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9878 | 16452 bytes |
SHA-256: 358fad4b74ef85afceb5f7d71d316d3f153efca535cadda945ed42ba561ad9f6 |
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font_03_sfnt_off0000ae8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE8A | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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