Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee96e7a6ab31016a…

MALICIOUS

PDF

84.9 KB Created: 2021-09-11 02:53:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 20bcf49c1df3284d13b8fe5ef57b5c06 SHA-1: 06c7f672ebaa6c2a795ed9aea621e126cbf3d8a1 SHA-256: ee96e7a6ab31016aa9d5f5b1393d92484342b9595cab330093cac3abccd05a65
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs pointing to various domains, many of which appear to be compromised or disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and URL patterns suggest it's designed to lure users to external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9905

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://allytemp.ru/uplcv?utm_term=action+launcher+pixel+edition+pro+apk PDF link annotation
    • https://thingstodobahrain.net/ckfinder/userfiles/files/98732951885.pdfIn PDF document text
    • http://radiopoint.cz/userfiles/file/mugulenuf.pdfIn PDF document text
    • http://singer-island-condos.com/userfiles/files/19108949722.pdfIn PDF document text
    • http://www.binghan.my/userfiles/file/78359821639.pdfIn PDF document text
    • http://arenda-v-novosibirske.ru/ckfinder/userfiles/files/duzedisetuzopizifaza.pdfIn PDF document text
    • http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135298cb559e---vowufobetazobijuduba.pdfIn PDF document text
    • http://evrokomplekt.ru/userfiles/file/delezenasux.pdfIn PDF document text
    • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/161373b390bbf5---liwitimudejum.pdfIn PDF document text
    • http://muntepa.com/userfiles/files/44191565797.pdfIn PDF document text
    • https://dolmalatrek.com/userfiles/file/dimoxuxulesasuxi.pdfIn PDF document text
    • https://muguet.fr/sites/default/files/file/31533245702.pdfIn PDF document text
    • https://nirkongrp.com/ckfinder/userfiles/files/gujegiki.pdfIn PDF document text
    • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/limk12hp2tjb43hpp2jcno3lvf/fodosamuxazegavowa.pdfIn PDF document text
    • http://medtravel.lv/images/hand_uploaded/files/wexojageroponu.pdfIn PDF document text
    • https://bayihoki99.com/contents/files/vaxoloro.pdfIn PDF document text
    • http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/2vb27lvacil1f434mpdcrlvtr6/6659033793.pdfIn PDF document text
    • http://studioaba.net/userfiles/files/5056879585.pdfIn PDF document text
    • http://telegid.tv/userfiles/files/zuvame.pdfIn PDF document text
    • http://prunay-en-yvelines.fr/ckfinder/userfiles/files/saluzinav.pdfIn PDF document text
    • http://larrysiegellaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/21163826357.pdfIn PDF document text
    • http://pengyou-english.com/FileData/ckfinder/files/20210910_2D8F90E84A2B7098.pdfIn PDF document text
    • http://hart-metale.pl/gimnazjum/userfiles/file/foposedo.pdfIn PDF document text
    • http://pol2-simf.ru/userfiles/file/65515049966.pdfIn PDF document text
    • http://ecole-belair.com/ecole/file/85117791315.pdfIn PDF document text
    • http://pospatrans.cz/UserFiles/File/gukazadokozexemiwivo.pdfIn PDF document text
    • http://ecme.site/2015/vat/upload/files/kepirewelarugefakeguza.pdfIn PDF document text
    • https://tonere.shop/app/webroot/files/userfiles/files/77311870687.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e172.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE172 10720 bytes
SHA-256: c68fee65cd723adabba45dce290aef711c126d32ee2f6159ad5bee2308e50db7
font_01_sfnt_off0000fa01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA01 19524 bytes
SHA-256: 2b4838679187d311906f1918969f9bf0a4eceef90eb5d0dd658ef2420c308504
font_02_sfnt_off00012d31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D31 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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