Malicious PDF — malware analysis report

Static analysis result for SHA-256 896309c6bb78904c…

MALICIOUS

PDF

180.8 KB Created: 2021-07-06 06:35:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 8d58c8889824c233b835d35d1842664a SHA-1: dc5bd63651675828882e1afb603006268e57dc8c SHA-256: 896309c6bb78904cf0222faef5119cafece7510820919403a7053493e7d8022d
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file was detected by ClamAV as Pdf.Phishing.Trojan. It contains numerous embedded URLs, many of which point to compromised WordPress upload directories. These links likely serve as a link farm to redirect users to malicious sites, potentially for phishing or to download further payloads.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3135

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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
  • 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://dichvugiayphep.net/hinhanh_fckeditor/file/nuwidarekorur.pdf In PDF document text
    • http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/ea7692f5e728ace04ea90e3e50d539ef/kaxatuxapifasod.pdfIn PDF document text
    • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/c2c9b1b7c158821d91ead73a7904dded/45347311491.pdfIn PDF document text
    • http://vtaky.sk/media/file/80271137588.pdfIn PDF document text
    • https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160849b4f5d39d---58248867256.pdfIn PDF document text
    • http://princeworldwide.com/multimedia/userfiles/file/tijezibanik.pdfIn PDF document text
    • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/16079be8d698ea---tanuzumil.pdfIn PDF document text
    • http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607d7600b3032---jukanenibanekow.pdfIn PDF document text
    • http://shuimotongyuan.com/userfiles/file/wobalaxulipe.pdfIn PDF document text
    • https://teenvolunteer.org/wp-content/plugins/super-forms/uploads/php/files/7f92266012c51dcca29ef193abf8ab46/pexutajojikim.pdfIn PDF document text
    • https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/129a01c820441c7cde81cc46fd756c85/mupefeneme.pdfIn PDF document text
    • http://tiendanatacion.com/noticias/files/36770983954.pdfIn PDF document text
    • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/2a4cadba406848106b00dde246319fb4/tokufe.pdfIn PDF document text
    • https://mamotato.ro/userfiles/file/sololasivarogomajiwof.pdfIn PDF document text
    • https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/88f2fcdf45092fc669b68279f735021c/busajofodopodor.pdfIn PDF document text
    • https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/b2f0b60f6685a9f7066cb5cf222395f1/11450355398.pdfIn PDF document text
    • http://zerosquareonline.com/file/9303247295.pdfIn PDF document text
    • http://canxetaidientu.com/images/file/noxuviwebalirodapax.pdfIn PDF document text
    • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083811683df2---bafazinanijaxax.pdfIn PDF document text
    • https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/7ese13747fqqqgf4t5l006rr55/bovotori.pdfIn PDF document text
    • http://szpital-sulecin.pl/images/fckfiles/file/fixovifoligiminimori.pdfIn PDF document text
    • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb7817edc34---93444584242.pdfIn PDF document text
    • http://lamekatus.ee/uploads/ckeditor/files/vixinitemebakewu.pdfIn PDF document text
    • https://avonsteel.com/UserFiles/file/dupugubuxojemixufukifafi.pdfIn PDF document text
    • https://cremyco.com/app/webroot/docs/file/50793837350.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=definition+for+self+righteousPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0002a21a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A21A 28091 bytes
SHA-256: 76dac8973abffe8ee1929be524d642a990c38627177d3f1b26ce5cec24d7f24f
font_00_sfnt_off0001c396.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C396 41356 bytes
SHA-256: d0ce099c8b52acd76ef48e4524aa40faa78886088da0917226924804e388cdec
font_01_sfnt_off000218e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x218E3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000230fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x230FA 10432 bytes
SHA-256: ba02d73c30c2252eec23e0957fbb837a63d44bb277cbd11b789bf59bb0114df1
font_03_sfnt_off00024889.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24889 32096 bytes
SHA-256: 94d4e4b864b521073dabe7d491fbd93431541591d40c3fd67057ea73501523b1

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