Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f448451505d60fe…

MALICIOUS

PDF

92.3 KB Created: 2021-08-25 19:50:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 0eb175b436c9fc1d3089c1bef10c1486 SHA-1: c6890a5489c7a54fc4f45296f5b7793e4fb412b0 SHA-256: 1f448451505d60fead9f0d798eb94e1b28338479d0116c9e126c9b40dda3d7c0
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is identified as a malicious PDF by ClamAV, indicating it's likely a phishing or malware distribution lure. Heuristics reveal it functions as a link farm, directing users to compromised WordPress uploads and disposable hosting sites. The embedded URLs suggest an attempt to redirect users to malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4400

Heuristics 5

  • 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
  • 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=the+area+enclosed+between+the+concentric+circles+is+770+cm+square PDF link annotation
    • http://kameleonhastanc.hu/files/file/73531180558.pdfIn PDF document text
    • https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/27c17bb05c9cf67285e0a6b84f03143f/60082841212.pdfIn PDF document text
    • https://afayl.com/userfiles/file/36815533395.pdfIn PDF document text
    • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606ddb18a479c---11808428537.pdfIn PDF document text
    • http://bagiez.com/userfiles/file/1388685152.pdfIn PDF document text
    • http://stonebreaker.at/15363207693.pdfIn PDF document text
    • http://www.bash.cl/media/file/81212773682.pdfIn PDF document text
    • https://conexkarvan.com/cache/fck_files/file/69684119715.pdfIn PDF document text
    • http://mastera-mix.ru/ckfinder/userfiles/files/livasasamelagolumuzunufir.pdfIn PDF document text
    • http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a7a8b661709---viwemomelabe.pdfIn PDF document text
    • http://gospel-pour-100-voix.com/fichiers/newsletter/file/xotomifewugatakerupos.pdfIn PDF document text
    • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/d32c00210d8574f0452a70f44696979f/69286634347.pdfIn PDF document text
    • http://alemotta.com/resources/original/file/jenujegimufidugiginon.pdfIn PDF document text
    • http://yhbinternational.com/userfiles/file/37712213299.pdfIn PDF document text
    • http://adacu.org/userfiles/file/20210807101138.pdfIn PDF document text
    • https://rmp-traueranzeigen.de/cms/files/17205566261.pdfIn PDF document text
    • http://toyotarentcar.net/FileData/ckfinder/files/20210721_C32D493782F00764.pdfIn PDF document text
    • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/3ca581aca2fa62755e1f2a09d3485c1a/65352705936.pdfIn PDF document text
    • http://mrybalko.ru/files/posedavaju.pdfIn PDF document text
    • https://www.propertyfilevault.com/wp-content/plugins/super-forms/uploads/php/files/ed8ff3844eaca48b8d45fb0174f68bc2/purakevadulifimewiravowo.pdfIn PDF document text
    • http://artecgroupservices.com/imagenes/file/83091771823.pdfIn PDF document text
    • http://novosib-sport.ru/ckfinder/userfiles/files/kagatija.pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fd7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD7B 11244 bytes
SHA-256: ce5b17e9056a37cc79c60bc352d544fcc0d491e261a9524b89aff70ca48c65c6
font_01_sfnt_off00011781.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11781 16284 bytes
SHA-256: afd17be92c2bc1246c1af03afdcb2f7f9f11bc2c26987b88e0047cce369b02ee
font_02_sfnt_off00012d7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D7E 17664 bytes
SHA-256: c6cb3a6b2d166a701b299bafc492e8221a7b87b12d8508d25e5bb0d2bd913314
font_03_sfnt_off00015c34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15C34 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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