Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ee410b668bed31b…

MALICIOUS

PDF

160.3 KB Created: 2021-06-28 06:28:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 9773f80c04e1f17b2e940ecdd4e8daa1 SHA-1: e354ed5db5f78cfdc21a86dab6cd159a1c8d86fd SHA-256: 5ee410b668bed31bef3bab21fb44200b1c3b44d34cae30f80be3e63b1c5fc4d1
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was detected as malicious by ClamAV and an ML classifier, exhibiting characteristics of an advance-fee scam. It contains numerous links, many pointing to compromised WordPress sites, likely serving as a link farm to distribute malicious content. The document's structure and content suggest a lure for a lottery or parcel delivery scam, aiming to trick users into downloading further malicious files.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9736

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.
  • 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://huntic.ru/uplcv?utm_term=decentralisation+meaning+in+tamil
    • http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/160a5491f41d5f---96676604373.pdf
    • https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1609919d22cecd---fuxipivodavuzi.pdf
    • https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609a2cc8499a2---banubokajazejosorapigevog.pdf
    • https://chpcentre.com/files/file/45724439173.pdf
    • https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/ei1327rsgpt5pmpgac80gub786/33077979229.pdf
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f5ba2922f4---6709528214.pdf
    • http://karpatskiles.ru/store/files/zolozimu.pdf
    • https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/bf9065f3fc1a580647ef1ed6790fe41b/reroxob.pdf
    • http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/16083320558578---20734563508.pdf
    • https://srp-galabau-rostock.de/wp-content/plugins/super-forms/uploads/php/files/nghkto7kft2tu2i5ujsctr6ca6/74044395134.pdf
    • http://commsoft.nu/demo/ktb/wsmbilder/files/laxasobelikofuwid.pdf
    • http://danchrisjewelry.com/userfiles/file/34920007914.pdf
    • http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/297f9beb20d8c6bf1277d2dd3877a97b/galepozaji.pdf
    • http://gentlemensquartersbarbershop.com/wp-content/plugins/super-forms/uploads/php/files/02f91431480add583ec972497c32c65b/diwujituset.pdf
    • https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/tek99noanrsqat4dh9vnai5bqn/19596531221.pdf
    • https://ka-base.no/images_content/file/foweruduxe.pdf
    • https://toolsatool.com/userfiles/files/46161317736.pdf
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/16092886443d07---59197965483.pdf
    • http://a2itsolutions.com/chop/multimedia/userfiles/file/89635825382.pdf
    • https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/6022f47cabac65a2a32236e3cb4252ff/zenejatawifuvusixiwunakor.pdf
    • http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608305c0c96a2---mexusota.pdf
    • http://edu-family72.ru/content/images/uploads/file/sadebekiz.pdf
    • https://hamzsabegi60szallo.hu/UserFiles/File/66878872336.pdf
    • http://dalnoboy.net/data/filestorage/upload/files/25502226838.pdf
    • http://school19-zav.ru/userfiles/file/49998360723.pdf
    • http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/160abceba87f06---23720482932.pdf
    • http://www.misshandicap.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16080c7e16e1eb---14195516553.pdf
    • 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_off0002100f.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2100F 16792 bytes
font_01_sfnt_off00022821.bin
5f1aee3b2691aa5f31c5115c52dbf1e8456ad7af1b557dbc7684ea6fe8c0911a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x22821 18900 bytes
font_02_sfnt_off00025955.bin
f3f291d4370e33f721e278813d3c96253f238d8225374ba814ce586749779be6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25955 10572 bytes

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