Malicious PDF — malware analysis report

Static analysis result for SHA-256 acf0d048fa6e05a8…

MALICIOUS

PDF

111.0 KB Created: 2021-03-31 05:01:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 74dc0b43b62a326933c797f16b60658a SHA-1: d6d095b10f63fe3622e49e2d08c8a95f9ed3b1ac SHA-256: acf0d048fa6e05a8ed19bed92daf1ec8106933f0e826c5ecc5c7e6e54cef77ad
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a large number of external links, many of which point to other PDF files hosted on various domains. The heuristic PDF_SEO_LINK_FARM indicates a link farm, and ClamAV detected it as Pdf.Phishing.Trojan. The primary malicious URL identified is https://mezovuduw.ru/award?keyword=bk+murli+in+bengali+pdf, which is likely used to redirect users to other malicious or SEO-manipulated content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9676

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The 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.
  • Embedded URL info EMBEDDED_URL
    One 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://mezovuduw.ru/award?keyword=bk+murli+in+bengali+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370051/normal_6033b069c5d66.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465565/normal_602297b71ddf9.pdfIn PDF document text
    • https://godowipi.weebly.com/uploads/1/3/4/5/134520373/zupiwowamup-vipirexejolazaf-zojemamenepaz-nulapef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427795/normal_6036d75092de7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415936/normal_6034cd4621cbd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405202/normal_5ff03b7beec12.pdfIn PDF document text
    • https://bosesabefo.weebly.com/uploads/1/3/4/3/134362720/lolavosoparapidi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488555/normal_5fd3879494999.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380413/normal_600c379822482.pdfIn PDF document text
    • https://fufukarebalomok.weebly.com/uploads/1/3/4/3/134352968/kotokoxikebaj.pdfIn PDF document text
    • https://bezijenogekise.weebly.com/uploads/1/3/4/8/134875893/56700441e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406191/normal_5fe783dcd7d90.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
    • http://smc.org.inhttp://smc.org.inIn PDF document text
    • http://www.indictrans.orgIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://22449060-8e30-4723-8828-967625cce342.filesusr.com/ugd/eddc50_2b8631a005974b809692779df6671412.pdf?index=trueIn PDF document text
    • https://11f44e1d-c86f-4be6-baa1-90970e7c24f5.filesusr.com/ugd/a298ce_9698dc7ba531404fbdaa1ae688182851.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/04d87da2-7d8c-47ce-a54f-9e5de98db13c/xunuvijilasisu.pdfIn PDF document text
    • https://49b821e7-ee7e-41b4-809b-d0417b8c1ddf.filesusr.com/ugd/927743_27b8a997dd544fc8b8a2c4f1d3bb3022.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/26f90ae6-c130-4f27-b721-f95b8a82eba2/20089718667.pdfIn PDF document text
    • https://356bbf58-84af-4bff-99a9-d03346e46411.filesusr.com/ugd/b5472a_a6c658865080469aa4b01bcd3a7703a8.pdf?index=trueIn PDF document text
    • https://4cd5eafb-d261-4666-a528-29b55b1676c1.filesusr.com/ugd/8dde66_4e5cae3c7d0f4e2d959929309c315e48.pdf?index=trueIn PDF document text
    • https://osgyansarovar.blogspot.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • https://gitlab.com/smc/meera/blob/master/COPYINGIn PDF document text
    • http://sinhala.sourceforge.net/In PDF document text
    • http://sinhala.cvs.sourceforge.net/viewvc/*checkout*/sinhala/sinhala/fonts/CREDITSIn PDF document text
    • http://www.gnu.org/licenses/gpl-2.0.htmlIn PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 14

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d1a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1A6 3288 bytes
SHA-256: efabc2a51c37c7c5ea14eadbab94f318a5f21bbf5d8be52754c6de50e3353e23
font_01_sfnt_off0000dd6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD6A 5436 bytes
SHA-256: a21f31373a2269e78de7dd292c69d64f666941be293655c17e6333c11675f34d
font_02_sfnt_off0000efce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFCE 5116 bytes
SHA-256: 3843f4581af06141ab662d0b91d2498a9e1a72ff6e45fed0b26caa072a2b9bfb
font_03_sfnt_off000100f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100F2 4944 bytes
SHA-256: a58d62dba894ee3cc99a659a3be365115978b3e4e43d7320e58a897cdf58d9fe
font_04_sfnt_off00011101.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11101 3048 bytes
SHA-256: 4bb619f7e4c8d10c6650d66271e6db770d7def95493d885be3efe54e7c100c22
font_05_sfnt_off00011d0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D0F 2328 bytes
SHA-256: 3702365b3034b9d7945da23b991b5e2ac3f8bb06d1ba3be7e5ba1b5d8dd48c9f
font_06_sfnt_off000127c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127C8 2604 bytes
SHA-256: 7f3a1ef136f36ba68bc36e5bcd31de243dce7f4b60e01c4bc40f508baeb48ca0
font_07_sfnt_off000132a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x132A3 3840 bytes
SHA-256: cca5298ad2e89ab0d41cc63a8205340d9321530172a8d5dda1c28d17fa56adaa
font_08_sfnt_off000140b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x140B1 2108 bytes
SHA-256: e66bd646ff29f48b94a898642357a1d5295b77faffa0bd70eb77acb4aebc9a97
font_09_sfnt_off00014a8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14A8B 4336 bytes
SHA-256: 87016e8933cc862d1d188edfbee698abcff8178ed3d6b510b61737ee02f60284
font_10_sfnt_off0001582b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1582B 6640 bytes
SHA-256: eca62b72654736461a635ba366d09d794777fd95c58152d2b251becdfce657e0
font_11_sfnt_off000169d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x169D2 11768 bytes
SHA-256: 3d60095f5eb704278e83d276fc5aa1c970b0e979ee80d986a08c0a829eec5252
font_12_sfnt_off0001904c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1904C 3536 bytes
SHA-256: 1fe4ccd105a2165bdc8813e8ca44fd8ac4690c69a3d9c3432bfadde42be3cbe3
font_13_sfnt_off00019e2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19E2B 2608 bytes
SHA-256: c4869f4910101e9de114603d80c87e7465cc14a3edf423f39a6ef78b10429b6f

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