Malicious PDF — malware analysis report

Static analysis result for SHA-256 beeac4186998dfc2…

MALICIOUS

PDF

86.1 KB Created: 2021-07-24 05:14:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 6fd2d6d6c75adcf5ebf9bac9be460554 SHA-1: ab12272a71b625981e1af3656681df8538501533 SHA-256: beeac4186998dfc2f710d4a230ca1cda8580e09df851d19ddb7a0f3e85d8d975
156 Risk Score

Malware Insights

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

The PDF file contains numerous links pointing to various websites, many of which appear to be compromised or disposable hosting. These links are presented as a 'link farm' designed to attract search engine traffic, with one URL specifically mentioning 'free warframe platinum generator no survey'. This indicates a phishing or scam attempt, likely to lure users to fake websites for credential harvesting or other malicious purposes. The ClamAV detection and ML classifier further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://logiccpacma.com/ckfinder/userfiles/files/87870092057.pdf
    • http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/dabopisomopidid.pdf
    • https://hssipm.com/wp-content/plugins/super-forms/uploads/php/files/7c400514e1cc383f3e4fe3c9180a8660/gajiranukebegujinezulov.pdf
    • https://citytrafik.nu/images/file/makenekobetij.pdf
    • http://laweasy.kr/userfiles/file/pepuragazudebadim.pdf
    • https://laetitiabernard.fr/images/file/zalewejamejopovu.pdf
    • https://olterus.net/contents//files/ratawagovakoxu.pdf
    • http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a94a5cef54e---vijowofevekuwude.pdf
    • http://zap-interactive.com/uploads/files/pirigasazawo.pdf
    • http://asiadomainstore.com/userfiles/file/nikiditojupu.pdf
    • http://mrsjamesirvine.com/clients/82887/File/68742692927.pdf
    • https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/b1276713354b27a1879ec393afd410fe/dakigepune.pdf
    • https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/hj1dj1t794iha6cfcn8vt3cgh3/75307679783.pdf
    • http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3a32042a90---savegulul.pdf
    • http://depcip.com/app/views/panel/ckfinder/userfiles/files/95203253917.pdf
    • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16079441082ece---roritojibafixamakelafiki.pdf
    • https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/fe26b299b7e89b77bae1687212253750/2866292809.pdf
    • http://lakesideterracecondo.com/clients/41361/File/64281673882.pdf
    • https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/5tigcl2sfjdkmqnir7abtuga67/rerumoberexubofuleda.pdf
    • http://tw-sincere.com/upfiles/editor/files/18334872596.pdf
    • http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e3738915598---56696185933.pdf
    • http://codemessaging.net/ckfinder/userfiles/files/rofibotum.pdf
    • http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094d0014867d---sinonezavilobolata.pdf
    • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/6bd03d5478ffae868085a9f4ad133369/tojekaradefujo.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=free+warframe+platinum+generator+no+survey
    • 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_off0000e9ea.bin
3ea721b0fb0308933f474ae3d09a65a5efdd8291219d131ebdcb27c349695219
pdf-font-stream PDF embedded font (sfnt) at offset 0xE9EA 11044 bytes
font_01_sfnt_off000103ad.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x103AD 16792 bytes
font_02_sfnt_off00011bbf.bin
6e3cdcda78673ba3b579c72f95b9405a1edeebbc78d4727b4e40718d276941cc
pdf-font-stream PDF embedded font (sfnt) at offset 0x11BBF 17532 bytes