Malicious PDF — malware analysis report

Static analysis result for SHA-256 0db398e4c29c0cd2…

MALICIOUS

PDF

120.1 KB Created: 2021-06-29 13:57:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 72c0be834868005c158cd1c2d26a2294 SHA-1: 3a7127b780381ad6201d30e5d1d7227da2453edc SHA-256: 0db398e4c29c0cd2b0be2f19c4d592e7c83a8cf7cdbdbef0c29e32e66bfefc44
196 Risk Score

Malware Insights

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

The PDF document exhibits characteristics of an advance-fee scam, as indicated by the 'SE_ADVANCE_FEE_SCAM_LURE' heuristic. It contains numerous links pointing to compromised CMS upload storage and disposable hosting, suggesting an attempt to distribute malicious content. The ML classifier and ClamAV detection further support its malicious nature, with ClamAV identifying it as 'Pdf.Phishing.Trojan'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9916

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://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095b35fa67de---tikakadoluxowej.pdf
    • https://sindonis.com/userfiles/file/febidiju.pdf
    • https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files//43780266769.pdf
    • https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160c43f2f0eaa7---xitokirexozuvevivajanimiz.pdf
    • http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160738f4f21c7d---30477968376.pdf
    • http://tuvanluatdanang.com/upload/ck/files/911056427.pdf
    • https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/n6vfrvoe3ov6gjqd8cf0btq049/lusitawelababorudufa.pdf
    • https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/fe061bf7977d99b09f1ba285f34d6186/71519126421.pdf
    • https://www.ideaklinikbursa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073bda0a0b6c---56501904343.pdf
    • https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/ab6f0cb0f5af84f5ac00492a66a610f1/kefer.pdf
    • https://flomogroup.com/upload/files/36457583244.pdf
    • http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/4a4ff79910ecb2b78196cba3f6fc861b/52296443282.pdf
    • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609850d44ef7d---25903287652.pdf
    • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/9mru3n7trdg03tsnipjce4cnh1/33583450039.pdf
    • https://www.icslights.com/wp-content/plugins/super-forms/uploads/php/files/7b13f5a4a94d1f36c48ee3fadca63514/xafironesak.pdf
    • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/16085063e019ed---tugazabozol.pdf
    • http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160b286959e5a1---26458974989.pdf
    • https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/95f1da9631c4158c07eff39d6261464c/95987634936.pdf
    • http://josephfellerlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/82079861540.pdf
    • https://www.opdrrustukalac.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a382ac7ab9---4520686628.pdf
    • http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5afb0ade9d---wepigaxoxutebavajofadopev.pdf
    • https://eatorhours.org/e-bussiness/fckimages/file/30820780390.pdf
    • http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6d64498feb---zenotikinarodiwukanubav.pdf
    • https://catequesisnavarra.org/guiarte_userfiles/files/83040102119.pdf
    • http://wittlich-luexem.de/userfiles/file/nukewow.pdf
    • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9bd894bfeb---xukakesijar.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=illinois+schedule+cr+instructions
    • 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_off0001748d.bin
febe2ef7451b2c73f061c758a70b7b470c67e079422711305836e08eaafac826		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1748D 17616 bytes
font_01_sfnt_off0001a301.bin
50848f009ea119612356acf1a19b395c62c6a990f29492c0c30e42b559483380		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A301 10356 bytes
font_02_sfnt_off0001ba49.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1BA49 16792 bytes

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