Malicious PDF — malware analysis report

Static analysis result for SHA-256 beb6cb30d5399987…

MALICIOUS

PDF

89.2 KB Created: 2021-07-06 19:33:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 763f42e03c02d8f59b61652f4ac39c39 SHA-1: 1184723844c933d52d84d9ea1fac0fcc5ccc1f57 SHA-256: beb6cb30d53999871678a473550f66c0a55f63524715a048a9d3cc5282f71743
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, many hosted on compromised WordPress sites, designed to lead the user to fraudulent content. The document's structure and heuristic firings strongly suggest a lure for financial fraud, likely involving fake prizes or parcel delivery scams.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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 http://www.prieteniitehnicii.ro/documente/file/kitaz.pdf
    • http://freeski.hu/freeski/file/letaziravenudugutawedi.pdf
    • https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/160c6a3e6e22b0---65388056852.pdf
    • https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/862ad1de2b3b55ec765a73ed7de71cb3/julemat.pdf
    • http://studiolaviano.it/userfiles/files/50817799303.pdf
    • http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160947c24f2fea---1292470544.pdf
    • https://cardion.dk/gfx/fckimages/file/58642753671.pdf
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/fdqdk34tq3jfldrg2n76m4djk9/juzosamufasarixepogaka.pdf
    • https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/bd01phj3mccis72m5u529adar2/96454986531.pdf
    • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16084dcd1390b3---sutelukel.pdf
    • http://thanuyentea.com/ckfinder/userfiles/files/vodewakilew.pdf
    • http://citra.cl/userfiles/file/gizoxuk.pdf
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/a0q9tko6bek2qknfo5sb3a5vs1/36753335796.pdf
    • http://sjar-tech.com/uploadfile/file///2021060909421566.pdf
    • https://hosvagyok.hu/userfiles/file/60851413960.pdf
    • https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/552m75sehjn8aqp1hn4ir74q92/tivavijakoru.pdf
    • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5a391909b---rorobibe.pdf
    • http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202106170425018496.pdf
    • http://apartmaji-zunicmile.com/uporabnik/file/8864140805.pdf
    • https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/e6efa1ae07b187fe8e88cca321896605/55616705349.pdf
    • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160ae9058dcb07---zakunopadezit.pdf
    • https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/d450d1f7464dd3ec511cdae5aba16561/fikev.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=howl%27s+moving+castle+streaming+services
    • 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_off0000f979.bin
4511ce1bf80e05d72a97fdd110cd433ff80ba278e74a4bc84a64a36cc0664a45
pdf-font-stream PDF embedded font (sfnt) at offset 0xF979 10752 bytes
font_01_sfnt_off00011249.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x11249 16792 bytes
font_02_sfnt_off00012a5b.bin
ec457ec8b3bf384b66965f01e946ff682d1c65399e5a0bb9e840f1952873cb4f
pdf-font-stream PDF embedded font (sfnt) at offset 0x12A5B 17296 bytes