Malicious PDF — malware analysis report

Static analysis result for SHA-256 3093e30b6036f418…

MALICIOUS

PDF

96.9 KB Created: 2021-07-14 06:08:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 8549d8514b5f30d448624b546938b6f8 SHA-1: dd3f75d42d5a1ec4780695d5b8f323a1095f474c SHA-256: 3093e30b6036f4186fa130ff1107733c8390a90c20c6109a3069a80b3e321216
196 Risk Score

Malware Insights

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

The document was identified as malicious by ML classifiers and ClamAV, and exhibits characteristics of an advance-fee scam. It contains numerous links to compromised WordPress sites, likely intended to host or redirect to malicious content. The primary goal appears to be defrauding users through a fake lottery or parcel delivery scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9936

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://caravanandre.it/wp-content/plugins/super-forms/uploads/php/files/8b23291c5b83c92bb0732d63ffa1c582/ridirala.pdf
    • https://nscs.org/wp-content/plugins/super-forms/uploads/php/files/2dbddea97fed406f5a3d005251d70569/38069535683.pdf
    • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c7317262c4b---21278296495.pdf
    • https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/bb11a53d6cdfd6007923d6953dbe1e00/mimutanijebu.pdf
    • http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160a1dce50e8cc---futolivadibelosozizenuta.pdf
    • https://kvkumariajnkvv.org/singhania/downloads/file/71061241161.pdf
    • https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098877e79562---97599690665.pdf
    • https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16094d21782ced---gevutimejatodapabopifamiv.pdf
    • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1606f595cc790a---1191394472.pdf
    • https://ankaratemizlikcim.com/depo/sayfaresim/file/fotumiralixolifodexet.pdf
    • http://www.bandungmesin.com/file/77716288309.pdf
    • http://pwmtqatar.net/userfiles/file/nuniduvesapowisane.pdf
    • http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607ff770c28b4---32936316844.pdf
    • https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/c1e17a0070c0f9b2b0af1308e42d4a99/67690844074.pdf
    • http://haithuanphat.com/uploads/files/roxoviwiletosanenejix.pdf
    • http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/rmnf65j182ef1aermcl0p3s9i1/ropunowurebufoziru.pdf
    • https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/5362a3f9454568977f5a8bdce41135ca/dibowomajigiku.pdf
    • http://jjinline.org/file_upload/file/29792667635.pdf
    • https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/sldf6msn169r3vq223f9u9q410/gilatedije.pdf
    • https://jetzterstrecht.hamburg/wp-content/plugins/super-forms/uploads/php/files/l2k6s8qrd33mlmfm8uanv2h0d2/31231951817.pdf
    • https://hiroyoung.com/data/files/lenefejakeg.pdf
    • https://twr1115.net/files/fckeditor/file/gibajikapevik.pdf
    • http://www.awakohchang.com/image/upload/File/193291983.pdf
    • https://condominiovillage.com/userfiles/file/rasopofo.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=make+a+pdf+in+photoshop
    • 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_off000118bf.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x118BF 16792 bytes
font_01_sfnt_off000130d6.bin
999ac514ed63c558e87cd45c09a3c78e48468421a328cafe4f16ac7bf9df359b
pdf-font-stream PDF embedded font (sfnt) at offset 0x130D6 10532 bytes
font_02_sfnt_off000148c4.bin
6bd87eddd7237801ba6eeab87b0f0471abe10c1c2f78fc57f8fc991dd0057868
pdf-font-stream PDF embedded font (sfnt) at offset 0x148C4 17408 bytes