MALICIOUS
222
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains multiple embedded links, with one critical heuristic identifying a link to known malicious redirector infrastructure. Another heuristic indicates a PDF link farm, suggesting an attempt to manipulate search engine results or distribute content. The document body, though heavily corrupted, contains the URL 'https://ttraff.ru/pify?keyword=monthly+outgoings+spreadsheet+uk', which is flagged as malicious. The presence of a download button lure and a callback lure further supports a malicious intent, likely to lead the user to a compromised site or initiate a phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=monthly+outgoings+spreadsheet+uk In PDF document text
- http://files.hareandtortoiserunwalk.com/uploads/1/3/1/4/131454352/sufatenuwutuz.pdfIn PDF document text
- http://files.clintlovell.com/uploads/1/3/1/4/131438137/5615605.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/1/0434/6911/1448/files/kidney_function_lab_report.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1056/4002/files/afspa_1958.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zurutadodusabexefiba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4136/6951/files/1156695889.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1872/2216/files/aditya_hrudayam_telugu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1102/9667/files/houghton_mifflin_math_grade_3_worksheets.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0093/9164/files/c_assignment_operator_overload.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6572/9429/files/bikini_body_guide_training.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5354/7677/files/xanumajusejupojigif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31052941417.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006081.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6081 | 5272 bytes |
SHA-256: 0f350f48b24b81442e3816d5a58e646560e2eaef495aa9721be395aec57aab52 |
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font_01_sfnt_off00007275.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7275 | 10356 bytes |
SHA-256: 54c8ccb4ab55b53e6d1738a97c67dc939a21ca214919ed0571b03ad73868652c |
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font_02_sfnt_off000095c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x95C9 | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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