Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1f773f1336121f4…

MALICIOUS

PDF

115.2 KB Created: 2021-02-26 03:18:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 4f3110e831f3bf4bd1600e4a5d52cd95 SHA-1: 6cdc8eddd21ed14faa05114d11e4f9562d87c2f1 SHA-256: e1f773f1336121f48caad92bb8c562d111a3d8b56d3bbf82b0d8ea07f31e5ece
126 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan distribution attempt. It contains numerous external links, including one to 'maypoin.ru', suggesting it serves as a lure to redirect users to potentially harmful sites. The document body, though partially corrupted, contains text related to geometric formulas, which is likely a pretext to disguise the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9904

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/award?keyword=formulas+para+calcular+el+volumen+de+solidos+regulares PDF link annotation
    • https://fowaloxew.weebly.com/uploads/1/3/4/8/134881160/1630742.pdfIn PDF document text
    • https://toraboretopupu.weebly.com/uploads/1/3/4/7/134769369/c928cc2509261c0.pdfIn PDF document text
    • http://befigter.xyz/timber_tuff_chainsaw_sharpener_manualvjo2x.pdfIn PDF document text
    • http://faripofijukevom.mywebcommunity.org/13070031943.pdfIn PDF document text
    • http://help-business-media.com/gugowegunomogogovikoxumorzn0tk.pdfIn PDF document text
    • https://cdn.sqhk.co/jeforije/lhejidx/vigepajebajeselibuba.pdfIn PDF document text
    • https://xigujevaw.weebly.com/uploads/1/3/4/7/134701692/waxofebuv.pdfIn PDF document text
    • http://gonosijotu.iblogger.org/93451195046.pdfIn PDF document text
    • https://cdn.sqhk.co/vufisolepu/hfxih35/juvavepiketumusibego.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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.daltonmaag.com/In PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://luvewon.epizy.com/bowez.pdfIn PDF document text
    • http://rizukapusapanom.rf.gd/netanan.pdfIn PDF document text
    • http://povasapodojika.epizy.com/17526197283.pdfIn PDF document text
    • http://pikubub.onlinewebshop.net/57303328227.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
    • http://scripts.sil.org/OFLIn PDF document text
    • https://gitlab.com/smc/meera/blob/master/COPYINGIn PDF document text
    • http://www.gnu.org/licenses/lgpl.htmlRegularDanhHongIn PDF document text
    • http://www.geocities.com/dnhhngIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 8

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012580.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12580 9060 bytes
SHA-256: fe311227b9f839da8df27ad2addf8609b280185ff08726fead1f548481f26979
font_01_sfnt_off00014308.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14308 5408 bytes
SHA-256: 7b27dc20c3373d68212ddea3180bb89d09c2738fdf8cad321f622c02f2b5daaf
font_02_sfnt_off00015555.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15555 2508 bytes
SHA-256: 0d5ae62cb8c9f7a5add227000b5a9990b0082ab2a72a951cc05f15b053f9f80c
font_03_sfnt_off00015f60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15F60 4180 bytes
SHA-256: f3cf563f53ce0cf240767e5ed821410b61d37ae8d184cda5f2326c1f6da48bce
font_04_sfnt_off00016bd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16BD0 3708 bytes
SHA-256: eec9895ad0e26072f8a62a158b9a05a328ef5f267a674e0a030bc603902ac584
font_05_sfnt_off00017761.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17761 11844 bytes
SHA-256: 2485ed5a01f49b248a46dda3852cbc900558a8a9dbc125eb6f269d2a0169d373
font_06_sfnt_off00019de5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19DE5 16284 bytes
SHA-256: 3cec8e9e195a9afe009c37a58747d003b1e92674be6188a43bcf883056fb7a80
font_07_sfnt_off0001b3ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B3BA 1960 bytes
SHA-256: 8149cd6d9d1c3064ed46cd4b9fd719bf4cc580c5a8ace2b9e6b0f71bc45d051a