Malicious PDF — malware analysis report

Static analysis result for SHA-256 e930f1465bfc1e89…

MALICIOUS

PDF

86.6 KB Created: 2021-09-19 11:49:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 679b04d6f00cd56b33a884008f32bbf1 SHA-1: fe898d8e7d98553d91bcdd9668a1cadb983cf300 SHA-256: e930f1465bfc1e89aa5039a62004a758fe74171552e87021f94493691ad154fb
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript, which is often used to exploit vulnerabilities or redirect users to malicious sites. Heuristics indicate this is an advance-fee scam, attempting to trick users with promises of prizes or funds contingent on delivery fees. The ML classifier and ClamAV detection strongly suggest malicious intent, likely involving a phishing or scamming operation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://www.temtechnologies.fr/ckfinder/userfiles/files/pomoguzuvirasanepus.pdf
    • http://globalnetworks.de/www.galabau-poscher.de/main/preview/ckfinder/userfiles/files/gefemapomig.pdf
    • http://taispacedesign.com/upload/files/52788626403.pdf
    • http://doremimarlikinsaat.com/userfiles/file/dijijajejukidusonitof.pdf
    • http://0228339500.kad.tw/kads/ckfinder/userfiles/files/nedupakujuwuxalotite.pdf
    • http://agriturismoilnoceto.com/userfiles/files/84711141365.pdf
    • http://gzsjlt.cn/userfiles/file/29863338411.pdf
    • http://hotspot-usa.com/js/upload/files/repefagemepinojovifu.pdf
    • http://satunatc.ac.th/ckfinder/userfiles/files/pojolatutiderumo.pdf
    • https://queensflower.nl/clientfiles/vazililale.pdf
    • https://doluhosting.com/calisma2/files/uploads/6284849388.pdf
    • http://hflchw.com/upload/file/nolonekitogab.pdf
    • http://arenda-v-novosibirske.ru/ckfinder/userfiles/files/buremi.pdf
    • http://evohome.pl/userfiles/file/mivowugaj.pdf
    • http://montpellier-businessplan.eu/mbp/upload/images/images/upload/ckfinder/tokogixow.pdf
    • https://langumeistras.lt/i/File/44935449324.pdf
    • http://www.cenlafilm.com/siteuploads/editorimg/file/mubovatubelirowadapiju.pdf
    • http://capesociety.ca/uploads/files/lezudizuxelifugonizag.pdf
    • https://highlander-inn.com/assets/userfiles/files/38317858884.pdf
    • http://kemenyseprosiklos.hu/upload/file/nisekuzutajewizej.pdf
    • http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/1613b9b8cb8b90---sufim.pdf
    • http://telegid.tv/userfiles/file/tenibupabobuminusika.pdf
    • http://instit.ac/ckfinder/userfiles/files/92856360671.pdf
    • https://nobelboya.com/userfiles/file/kilatifuli.pdf
    • http://zhuxintrading.com/uploads/ckfinder/files/20210911/16313685415574.pdf
    • https://xn--bren-mgenwil-gcbf.ch/sites/default/files/fck-uploads/file/90121431855.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=how+to+find+mac+address+for+android+phone
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ecab.bin
0e49b718f184986e1f3dd8ea8b98cf30b522bbfb3566ca447a88a4d906976be1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xECAB 17620 bytes
font_01_sfnt_off00011ac5.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11AC5 16792 bytes
font_02_sfnt_off000132dc.bin
42ed8f009ac4ead9b570a2e41fe932a981e7003a9b2ed622783b95a3fb194907		 pdf-font-stream PDF embedded font (sfnt) at offset 0x132DC 10916 bytes

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