MALICIOUS
206
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a callback-phone (TOAD) lure. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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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External URI info PDF_URIPDF contains an external URL action
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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://xajibur.ru/strik?utm_term=hannah+arendt+the+human+condition PDF link annotation
- https://pulapafux.weebly.com/uploads/1/3/0/8/130874232/8854550.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4470524/normal_5fe5f9ae80964.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446260/normal_5fdf6a33cf769.pdfIn PDF document text
- https://vanizubifimid.weebly.com/uploads/1/3/0/8/130874516/ropofewarimimoxen.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4451566/normal_6000a9cf126aa.pdfIn PDF document text
- http://vurovolapoza.mygamesonline.org/cobra_29_lx_max_manual.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/eb6ad4fc-855e-425d-a657-af4c0fa0892a/didedoxazef.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c2325831-3c79-454c-90a3-7e29edbe0585/49368814286.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8fca2733-5e3c-4326-9ff3-261c8e8e8155/bugera_v22_infinium_used.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3e3b1243-e9a3-42a9-81ac-5f33a6bea202/kixanaf.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/20e03aa5-eac0-4631-89cf-c33a97a23c58/navy_reserve_personnel_center_new_orleans.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/68174e57-0c75-4cee-957f-5d87a3ec69d9/important_quotes_from_the_importance_of_being_earnest_explained.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e94d7df7-a322-4d1c-a6ec-e93beb4b6d76/vegan_cookbook_for_athletes.pdfIn PDF document text
- http://viwuwijagabote.myartsonline.com/nomubevubevafugowis.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b69c2c9f-5b43-469d-97cb-092c6cac60b3/18553702208.pdfIn PDF document text
- http://direpedokelazal.rf.gd/bujarelegafagutolunod.pdfIn PDF document text
- http://kiwuvapinemugi.rf.gd/wenabadeniv.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f5b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5B8 | 4932 bytes |
SHA-256: fde462657b57131525404fca4deabe6e344ee20c6545a2eeefe8d13cec80935b |
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font_01_sfnt_off0001064a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1064A | 11784 bytes |
SHA-256: 7fa71d953e080b7d27b3729f7c8fa8dac91864e65488dbe803d9a4ca1a60618d |
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