MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous external URLs pointing to other PDF documents, suggesting a tactic to distribute further malicious content or manipulate search engine results. The presence of multiple disposable hosting domains and UTM parameters in the URLs further supports a malicious campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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=%25C4%258De%25C5%25A1tina+pro+cizince+a+azylanty+a1+pdf PDF link annotation
- http://giwitijudaleka.mygamesonline.org/abdomen_agudo_quirurgico_2020.pdfIn PDF document text
- http://mediaverifiedbadge.com/79563513631xgxzc.pdfIn PDF document text
- https://cdn.sqhk.co/gozigawefo/ahaocji/valug.pdfIn PDF document text
- https://cdn.sqhk.co/gogojelawov/jEYhFgg/temple_run_game_free_download_play_store.pdfIn PDF document text
- https://cdn.sqhk.co/junigofulum/990ieRr/wemorinoba.pdfIn PDF document text
- https://cdn.sqhk.co/tusifefovozu/dghiaMm/vumibudodesen.pdfIn PDF document text
- http://trelon.fun/pc_me_file_kaise_banayejg63j.pdfIn PDF document text
- https://zudovizu.weebly.com/uploads/1/3/4/3/134338339/bfb2c783eaffbc.pdfIn PDF document text
- http://redirunna.xyz/did_the_lying_game_get_cancelledf8dxu.pdfIn PDF document text
- http://liketime.fun/multivariable_calculus_khan_academy_youtuberr2mb.pdfIn PDF document text
- https://gituwelogasof.weebly.com/uploads/1/3/2/8/132814340/b98caa2.pdfIn PDF document text
- http://antonioita.fun/302292405236v680.pdfIn PDF document text
- http://randname.ru/how_hard_is_navy_seal_hell_weekcw6yl.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://387a498e-9551-4239-9507-3183ba214552.filesusr.com/ugd/cd403b_82ddc399785c49ad9fb8354d6433c6c6.pdf?index=trueIn PDF document text
- https://504706c9-3a86-45eb-876a-6494ef133fff.filesusr.com/ugd/80c1db_2f37969483244bd7a19be9a2ef1e40f9.pdf?index=trueIn PDF document text
- http://widifusi.myartsonline.com/15659526593.pdfIn PDF document text
- https://c7972686-9310-4d97-8ac3-15e828887225.filesusr.com/ugd/8a419d_c94cb0cd1ebf4bdf89393090813b0e13.pdf?index=trueIn PDF document text
- https://790985df-dfec-4a08-b509-00f37668cf87.filesusr.com/ugd/a421e3_0ad92c83fade4d7dbb668a591ad27921.pdf?index=trueIn PDF document text
- https://23da7c74-6e14-424a-b22a-901aa35eafb1.filesusr.com/ugd/9cc572_81c08b0f4bb5474fbca8fb3674819755.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00014b40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14B40 | 5436 bytes |
SHA-256: 5758f00a4a3168bcb69e6b86bb8bc4ec470fe00bf355cb98bd84b504d7ff531b |
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font_01_sfnt_off00015d93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15D93 | 14516 bytes |
SHA-256: e3060451ab67cac43b0853f4992a44acc6e5fd2444781f79b8641115a903e2e3 |
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