Malicious PDF — malware analysis report

Static analysis result for SHA-256 0022d55048cf3112…

MALICIOUS

PDF

63.6 KB Created: 2021-06-29 14:49:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-31
MD5: 7f95c6c5cf61b2233d26ecd99835b8a9 SHA-1: fb1b990afddf21a8ba91a931160109085d3854aa SHA-256: 0022d55048cf3112057db79fdc195fcea2b5f17635084586c8e1b24e799e9891
154 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm hosted on compromised WordPress sites, suggesting it is designed to redirect users to malicious content. The presence of numerous unknown URLs further supports this, as they likely serve as the final destination for the attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8763

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 http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/3093b05b94a08af1bccaa4be4921ed75/97206112479.pdf In PDF document text
    • https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/qepgk4h4auv0qhtsq6hdgch9mp/bodolevogoroponasimodeja.pdfIn PDF document text
    • http://hnkingdee.cn/Files/file/202162171442.pdfIn PDF document text
    • http://saxonsaxtonfamilyreunion.com/clients/f/f6/f6d0431f970e0833b0867c311dafb132/File/20302672034.pdfIn PDF document text
    • https://muratay.nl/userfiles/file/zubutezikubobuzegarodewoz.pdfIn PDF document text
    • https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/o45h1o94rle6ig6bb4r3a272q2/tidiveroj.pdfIn PDF document text
    • http://autohondl.cz/userfiles/file/nixexamedibiwibekeposu.pdfIn PDF document text
    • http://airconbank.com/upload/fckeditor/file/wadapisizosatib.pdfIn PDF document text
    • http://tragadsonisurat.com/ckfinder/userfiles/files/kesalof.pdfIn PDF document text
    • https://www.icslights.com/wp-content/plugins/super-forms/uploads/php/files/359e30e2a3702a2768ec93432f8b490c/memetakirusujoponor.pdfIn PDF document text
    • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/3b8dfea3bf42a4d86ddd54cdcf4ac61d/43278913738.pdfIn PDF document text
    • http://avonsteel.com/UserFiles/file/15543679692.pdfIn PDF document text
    • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160af99c754033---98978665097.pdfIn PDF document text
    • http://www.bluewhaleline.com/image/upload/File/wexinuno.pdfIn PDF document text
    • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608b1f850cd38---74434258020.pdfIn PDF document text
    • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a370623e68d---99771906419.pdfIn PDF document text
    • http://thepdaitruongphat.com/upload/ck/files/bazegidosonipeviva.pdfIn PDF document text
    • https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/3da65ma64ghe1tpjsitre3ak02/ledetidoxilusu.pdfIn PDF document text
    • http://highendschmiede.de/highendfiles/file/ruvutiwux.pdfIn PDF document text
    • https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/73ccd60a2da580a32b6ac65f600cb771/18057857503.pdfIn PDF document text
    • https://bonpetsupply.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3570eacdd---zifafu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=98+element+of+periodic+tablePDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e5d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5D8 11032 bytes
SHA-256: c1fd8cdde43cd31b64902650d68153549108104415adf3885b864c45ba484cd6

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