Malicious PDF — malware analysis report

Static analysis result for SHA-256 00a610d63854a37b…

MALICIOUS

PDF

85.8 KB Created: 2021-07-10 06:15:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 41febbdd11a3f50c9a1289945c38b8b2 SHA-1: 1247276704855116af193f73a2e819a500277155 SHA-256: 00a610d63854a37b96f32bd09b45f3d04066f0879ab9fce012e58fa20f94a863
196 Risk Score

Malware Insights

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

This PDF document is classified as malicious and exhibits characteristics of an advance-fee scam. It contains numerous links to external websites, many of which appear to be compromised or disposable hosting, likely serving as lures for the scam. The document's structure and the presence of multiple links to potentially malicious content strongly suggest a phishing or fraudulent scheme aimed at tricking users into paying fees for non-existent prizes or parcels.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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://inwebjor.ru/uplcv?utm_term=happy+one+month+anniversary+sister
    • https://advance-pack.com/editor_upload/file/dosuk.pdf
    • https://berbagiangka.com/contents//files/jurasaritevog.pdf
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/ca63a98091c05c1812dc2858c1d6995a/93896101535.pdf
    • https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/5s130k9281i93so8ceiu9dhd65/kegisebo.pdf
    • https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/77eb937c453065f845d7bad266403c1f/79229023912.pdf
    • https://moto-trend.cz/public/files/fck/file/vusozarejanimafodisumepo.pdf
    • http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/d5b6966c26775468218dd64198f81eec/nasujuvoruf.pdf
    • https://jetzterstrecht.hamburg/wp-content/plugins/super-forms/uploads/php/files/dvt9mo20ppvq1b8gkarme59non/95430950559.pdf
    • https://cooperspick.com/files/mevivozapesavatefazexo.pdf
    • http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b33dcc33789---remusafukusek.pdf
    • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/2ae3ee9e021ba98cd7d8e49e625625b1/zomewu.pdf
    • https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160836cb9f2af1---tonexodix.pdf
    • http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/0f4lehjvug10vsvtjplh52aur2/76143273080.pdf
    • http://dgxzz.com/uploadfile/file/77470438330.pdf
    • http://vtaky.sk/media/file/60579661759.pdf
    • http://gtshotel.it/images/file/meposewafofuf.pdf
    • https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1608fde5919ff0---torozebobituzij.pdf
    • http://heyumpnd.com/userfiles/file///buvugitedofenino.pdf
    • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160834963ddf3b---91920364130.pdf
    • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083e386446f9---welajoxisewuzana.pdf
    • https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/rd262jn37ofgdgo5l5epl7o355/79784134660.pdf
    • http://wf515345.tw/CKEdit/upload/files/2159030741.pdf
    • https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/8o1cqa42g44quh58si6iskkotm/milarij.pdf
    • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fc2b451d36---67202617822.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_off0000eb10.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0xEB10 16792 bytes
font_01_sfnt_off00010322.bin
e7bf3dcc2ccf89cc8a07892087b81cff7d3495fbe337ca39aff5fdea214cde5a
pdf-font-stream PDF embedded font (sfnt) at offset 0x10322 17656 bytes
font_02_sfnt_off00013207.bin
667cfff7923ea4cbd34e4cb6854682fbeead8e60c9da7fcd7c9f042e595a0bc2
pdf-font-stream PDF embedded font (sfnt) at offset 0x13207 10644 bytes