MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by a machine learning classifier and ClamAV. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO spam operation. One of the embedded URLs, https://baarspo.ru/123?utm_term=causes+of+the+great+depression+worksheet+pdf, is presented in a context that mimics a worksheet, likely to deceive users into clicking through to potentially malicious or ad-heavy sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 6
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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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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://baarspo.ru/123?utm_term=causes+of+the+great+depression+worksheet+pdf PDF link annotation
- http://bewakidigi.22web.org/kitebaliwazoboxe.pdfIn PDF document text
- https://cdn.sqhk.co/fasixazijaz/agectjd/nhl_schedule_release.pdfIn PDF document text
- https://cdn.sqhk.co/xovepejegosi/ididKij/89676005593.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4456121/normal_6007991cba73b.pdfIn PDF document text
- https://cdn.sqhk.co/jagugide/uGKhhbZ/stunt_bike_freestyle_mod_apk_new_version.pdfIn PDF document text
- https://cdn.sqhk.co/xixofivib/5jijMIe/camera_for_laptop_price_in_pakistan.pdfIn PDF document text
- https://cdn.sqhk.co/xewafazuk/Zigcgjf/merge_magic_cheats_challenge_16.pdfIn PDF document text
- https://cdn.sqhk.co/pirujezexod/wAigYnO/download_underground_crew_2_drag_racing_mod_apk.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418791/normal_6038d4225b272.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476582/normal_60581bc90d60e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4481985/normal_6002028cf37a4.pdfIn PDF document text
- https://cdn.sqhk.co/rijomawonuj/ifujdiG/mega_bloks_racing_rig.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://lejapanuvijul.rf.gd/pilituzonoden.pdfIn PDF document text
- http://dadivudibe.epizy.com/fortnite_storm_racers_challenge_guide.pdfIn PDF document text
- http://pukugatiwuz.epizy.com/computer_service_price_in_india.pdfIn PDF document text
- http://kukalofawofami.epizy.com/pagomawo.pdfIn PDF document text
- http://retukazitoja.epizy.com/how_to_reset_my_voicemail_password_metro_pcs.pdfIn PDF document text
- http://novotufimaxanu.epizy.com/zolipewas.pdfIn PDF document text
- https://2a983b51-2e13-4971-8c1f-a5bca3ab4353.filesusr.com/ugd/e1a791_d2314c8b09db43368c625c616cc07768.pdf?index=trueIn PDF document text
- https://34e2f0dc-0077-42bd-a047-efa2502e92af.filesusr.com/ugd/8a05ec_012076429f41468ea72ff69d4a1614fe.pdf?index=trueIn PDF document text
- https://80f75f89-a1e3-4611-a0ef-7a704eb82da9.filesusr.com/ugd/0286dd_4dc5a56241534c9197022b0f81df4308.pdf?index=trueIn PDF document text
- https://86a6be6f-1c3f-48a2-98e5-8a654ddc1212.filesusr.com/ugd/027f51_d6e8a4cc391248588a43d1fa8e0dc55f.pdf?index=trueIn 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_off0000f631.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF631 | 5332 bytes |
SHA-256: 31385efad8fadd6daec6373ccd8c3b3ee7069831f4fe16c0bb085dea721c012d |
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font_01_sfnt_off00010864.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10864 | 10648 bytes |
SHA-256: 52a071f1fd5f43fc78052f7dd1080caf7d79cbc77c8a1f1327342aa89985ddc5 |
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font_02_sfnt_off00012c8e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C8E | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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