Malicious PDF — malware analysis report

Static analysis result for SHA-256 67114ddc0e8dd3f3…

MALICIOUS

PDF

85.0 KB Created: 2021-09-02 08:38:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 884cdb297c6f788cf76c42eac15d61ad SHA-1: e2f20344b1252a13c1c3176dbc7c49c205d9f99f SHA-256: 67114ddc0e8dd3f34edcc10661d4b113e507ee3ec119b08b1d07023b585dde18
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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 https://garglob.ru/uplcv?utm_term=oscar+mike+military+meaning PDF link annotation
    • http://standartbio.com/fckfiles/file/22414383671.pdfIn PDF document text
    • https://knoxvilleremembers.com/media/fabexo.pdfIn PDF document text
    • https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/npuv9gv1gsu170p9fiaomv2q4j/kirasowutax.pdfIn PDF document text
    • https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5c6b95d847---jagiwofuten.pdfIn PDF document text
    • http://flemingfamilies.org/clients/8/8a/8af36a28baf44bfc7b8a7004fb4eaede/File/toxuran.pdfIn PDF document text
    • https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083540602c15---58505027748.pdfIn PDF document text
    • http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a20ef2e2733---6805546452.pdfIn PDF document text
    • https://wendi101.com/userfiles/file/89652067557.pdfIn PDF document text
    • https://kumsalgame.com/calisma2/files/uploads/78751109461.pdfIn PDF document text
    • http://all-premium.com/user_file/files/xideler.pdfIn PDF document text
    • http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b33f6415151---tozidawivapiritisaxerusan.pdfIn PDF document text
    • http://franzoesischebulldoggen.eu/userfiles/file/25978324288.pdfIn PDF document text
    • http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/9jckngvl0vtdbgcm6tuh3drgi2/96814381370.pdfIn PDF document text
    • http://ciarajewellery.com/editor_upload/file/37735953562.pdfIn PDF document text
    • https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/16081f5024e667---forupilixilarow.pdfIn PDF document text
    • http://sinoscaform.com/upload/ckimg/files/202108231445341130.pdfIn PDF document text
    • https://sitpchemcieszyn.pl/_sitpchem/file/97411984026.pdfIn PDF document text
    • https://sweetburden.com/upload/users/files/93566182637.pdfIn PDF document text
    • http://calliopegoodrich.com/clients/73417/File/zizofegoxekenijudomaji.pdfIn PDF document text
    • https://fulzugaskozpont.hu/files/xavup.pdfIn PDF document text
    • http://archgeo-leszno.pl/uploads/userfiles/files/wewubutukafesi.pdfIn PDF document text
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/f517de2d5ed9b0bffccdfb8c54b850f2/jutilotalaludivokafosisoj.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1F3 10684 bytes
SHA-256: b4cbbc08690babae2326249b2dc831e114551dbaa7d2dd5b401cf32fb1712fb6
font_01_sfnt_off0000fa8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA8E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000112a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112A0 20216 bytes
SHA-256: 558b0b556a50be0dcc151aaf5d306fd0d99dfe033ac0518ce856ae61c59d1572

Open this report in the interactive analyzer, or submit your own file for analysis.