MALICIOUS
206
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file exhibits characteristics of a phishing or malware distribution lure. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to malicious sites. The presence of a callback lure heuristic further indicates a phishing attempt, likely to trick users into revealing sensitive information or downloading further malicious content. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://seumenha.ru/123?utm_term=do+accu+chek+lancets+expire PDF link annotation
- https://cdn.sqhk.co/kisunika/ge2Dwgi/15298354773.pdfIn PDF document text
- http://iminn.ru/balkar_sidhu_song_chan_vel0ykq.pdfIn PDF document text
- https://cdn.sqhk.co/xewafazuk/4gfjgHC/aarp_insurance_payment.pdfIn PDF document text
- http://businesslinecenter.com/57736174540e4kq1.pdfIn PDF document text
- https://pebezudaxefen.weebly.com/uploads/1/3/4/3/134347708/vufukez_bafemuvo_kisetizesab.pdfIn PDF document text
- https://cdn.sqhk.co/futevanu/9gjhjoU/sexolosideweguwajidizufa.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4499636/normal_5ff0166f376e4.pdfIn PDF document text
- https://cdn.sqhk.co/gizoxemovefi/oBy3haE/45167795797.pdfIn PDF document text
- https://cdn.sqhk.co/sogupavetut/R2SGsAS/59778105252.pdfIn PDF document text
- https://namonivet.weebly.com/uploads/1/3/4/4/134493383/9fabb2fb039798.pdfIn PDF document text
- https://durirumis.weebly.com/uploads/1/3/3/9/133999752/modopevejuj.pdfIn PDF document text
- http://ergors.space/xiperikupajemisojovodoxxjhs1.pdfIn PDF document text
- https://kotuposa.weebly.com/uploads/1/3/1/4/131406283/572487.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4464068/normal_5ffb745ca85b2.pdfIn PDF document text
- https://cdn.sqhk.co/posojuvapono/1wMibi9/slice_of_heaven_wareham_menu.pdfIn PDF document text
- https://cdn.sqhk.co/borefigux/phehjic/bandicam_free_download_mac.pdfIn PDF document text
- https://cdn.sqhk.co/zatufora/gd8VG9k/gatejavazovurixevemaxir.pdfIn PDF document text
- https://cdn.sqhk.co/detaludolef/ZghM8ii/xbox_series_s_controller_compatibility.pdfIn PDF document text
- http://vkrowl.com/avermedia_recentral_patch_hdcp_bypassoemuu.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
- 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_off0000f567.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF567 | 5036 bytes |
SHA-256: 05dd123fbbab9f53ab438fdf430f77ccee0cec0cadb8f5fef5a7cdec3dd11765 |
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font_01_sfnt_off0001067a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1067A | 10920 bytes |
SHA-256: eb49b554bd1600b1fb7b903cab0c5175b24d0dc0f270bac42332215203d17fde |
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font_02_sfnt_off00012b97.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B97 | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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