MALICIOUS
166
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 brand-impersonation credential phishing. 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 0.9855
Heuristics 6
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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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Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISHDocument impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://gimoguvi.ru/123?utm_term=arithmetic+means+worksheet+with+answers.
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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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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://gimoguvi.ru/123?utm_term=arithmetic+means+worksheet+with+answers PDF link annotation
- http://fofiwafajelerax.sportsontheweb.net/37256527921.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4498986/normal_5ffb810139d32.pdfIn PDF document text
- https://cdn.sqhk.co/mubafazus/Qhbwizi/13820622822.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4445864/normal_601bd45ef03fe.pdfIn PDF document text
- https://cdn.sqhk.co/kitujesijak/09iaUaO/pikavoxizebibasepoxibulim.pdfIn PDF document text
- http://dupamineni.medianewsonline.com/vajuwogusizezuba.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4374533/normal_60033c63e6965.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4460473/normal_603eb9a2c9763.pdfIn PDF document text
- https://cdn.sqhk.co/risafapiven/hDRghcI/best_android_tablet_2018_under_200.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4498992/normal_5fd1e90b323f2.pdfIn PDF document text
- http://zoosalon.org/puzafero7mz5r.pdfIn PDF document text
- http://vertitribe.store/63376100569ba8k.pdfIn PDF document text
- http://zitokujamu.mypressonline.com/pegugofitopaxedufaja.pdfIn PDF document text
- https://cdn.sqhk.co/nodomepe/dYibiib/maleboz.pdfIn PDF document text
- http://zebiripu.mygamesonline.org/betuzuletofutizam.pdfIn PDF document text
- https://cdn.sqhk.co/murofoli/igij45I/15604118229.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In 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://uploads.strikinglycdn.com/files/821d5e75-82f4-49ea-8c12-cbe454bb9aef/powerstation_psx-3_18ah_jumpstarter_with_air_compressor.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/07761bbc-907d-480c-ac9e-a8f0379a5418/wutixejajumogafukame.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3cf1bdfd-f981-473c-b56a-a02624586978/menoditibuburupenajuritaj.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/99b1f486-fda4-4dd8-ae0a-df691fbde746/brother_hl-6180dw_printer_price_in_bangladesh.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b05d8f6f-d923-4045-ab19-ed0dd0649946/name_the_instrument_used_to_measure_rainfall_class_7.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/55e9b37d-a6ed-409c-9045-f81c46a442bb/jotinaxuvokibupepudak.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a4c77b8d-1e5d-4038-ba43-88920951cf2c/deepa_durga_kavacham_lyrics_in_kannada.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5cdff966-bad0-4b76-8744-6b673e8772e0/videgixojanefemirololude.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cb75c31a-dd31-47d2-9131-319f834e0b41/frayer_model_template_math.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/95df06c0-93ae-4138-a2eb-edcbafceaf5e/how_to_know_if_a_story_is_a_fairy_tale.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fc60.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC60 | 7284 bytes |
SHA-256: 5879da9009368bf803839f8485722d8858b0a4df322cf283f46cc204249b46f6 |
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font_01_sfnt_off00010f04.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F04 | 1820 bytes |
SHA-256: 308d30988b092738e0e40abce31c6031e3be15f079d294b54e09d1ef9422dffa |
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font_02_sfnt_off0001178b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1178B | 4940 bytes |
SHA-256: 7b42c16f587fbc35881dd334e6ed489e4030fde0b9ba7d7d45041b018bf69e91 |
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font_03_sfnt_off0001282a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1282A | 11236 bytes |
SHA-256: 60ea1ceabcf4d85762786c7e84decbf46a946bce6e89a87cfb9bffdde337a21e |
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font_04_sfnt_off00014eb4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14EB4 | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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