MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
T1059.001 PowerShell
The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains text related to 'admission form' and the malicious URL, suggesting a lure. The presence of a visible LOLBin command execution instruction further indicates malicious intent, likely to execute a payload or redirect the user to a harmful site.
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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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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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.ru/pify?keyword=cmd+college+bilaspur+admission+form+2019 In PDF document text
- http://zuluboka.timothygabrielmusic.com/uploads/1/3/1/3/131379803/gobegakawumob.pdfIn PDF document text
- http://zekivete.allenpc.org/uploads/1/3/0/8/130874207/7429422.pdfIn PDF document text
- https://cdn.shopifyIn macro / runtime command snippet
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/viborovikumowenaben.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6322/1155/files/allegiant_veronica.pdfIn macro / runtime command snippet
- https://cdn.shopify.com/s/files/1/0430/6026/5117/files/kufirosurosi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9200/1433/files/game_call_of_duty_android_apk_obb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2166/3397/files/fusuvodejad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9830/0823/files/archimate_specification_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1431/5422/files/xakebideva.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7086/6087/files/85162907507.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9933/2512/files/toturutad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5586/6263/files/dosozibeviboko.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8424/2337/files/46349326827.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1637/9816/files/pozamirunujafuzidikolovu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2754/5757/files/zedulilexibetula.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006606.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6606 | 6004 bytes |
SHA-256: 47086c681936366f2f9b03230d5376ec38107c637bd6100729a3cfc150e395ac |
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font_01_sfnt_off00007a5a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A5A | 10680 bytes |
SHA-256: f78aa6e4396dd9fb7cce558330eaa80da7cdc507fdb9ff0879986d9eefc2a27f |
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font_02_sfnt_off00009f10.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9F10 | 16164 bytes |
SHA-256: ebd2804bff382343e08f6a42dc45f69f4e794c08b23908ae60ba78ededae74b1 |
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