Malicious PDF — malware analysis report

Static analysis result for SHA-256 fff47d20018a1d26…

MALICIOUS

PDF

66.5 KB Created: 2021-08-28 16:42:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: ce307ad01ae94bed08ca591b2007a22c SHA-1: a93dedc49b9b7cced71a2e004214717849ba9a78 SHA-256: fff47d20018a1d26aea6ab322b912386d399994d35d00c352c0e09c9a409627a
194 Risk Score

Malware Insights

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

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier. It contains numerous links pointing to compromised WordPress upload storage and other disposable hosting, indicating a link farm designed to redirect users. The presence of 'LOLBin token sequence in document text' suggests potential exploitation or obfuscated commands within the document's structure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9057

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
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/5610c68d970dd15e57440c7a4c2e0d4c/zinagexizipoxolubebafaz.pdf In PDF document text
    • http://uptownchantilly.com/uploads/files/90120786182.pdfIn PDF document text
    • https://www.adilaltinsoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160836d88395bf---2406971147.pdfIn PDF document text
    • http://arunimaflavours.com/userfiles/file/begojavejak.pdfIn PDF document text
    • https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/71b05bcab8c41e6f8c9886d2b2180af3/91445438112.pdfIn PDF document text
    • http://www.melloecastro.com/wp-content/plugins/formcraft/file-upload/server/content/files/160745543d222d---famodiranujadonimoxajon.pdfIn PDF document text
    • https://panificiopasticceriabattaglia.it/file/52877991784.pdfIn PDF document text
    • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160926ea375f0c---45827647873.pdfIn PDF document text
    • https://yziact.fr/wp-content/plugins/super-forms/uploads/php/files/mqob88csdsrb8a6rmq4m4h7rvc/taronovowosewu.pdfIn PDF document text
    • https://bikeid.net/ckfinder/userfiles/files/38178380845.pdfIn PDF document text
    • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607d843f2bf75---jivinumafomewazupomi.pdfIn PDF document text
    • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0452179672---bofajogosak.pdfIn PDF document text
    • https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/1dacb3342d4535deafc7b41a917d75c5/23225918013.pdfIn PDF document text
    • http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16080248f540ee---metusowoj.pdfIn PDF document text
    • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/16070577b3f313---73336600970.pdfIn PDF document text
    • https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/f0c19e5e47732dda15fbbe8674939edb/49581444558.pdfIn PDF document text
    • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/bp0bu790g6dvclv3r32vdth3p7/86892684095.pdfIn PDF document text
    • https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/768ttn3tqc6fq1ui1ei2muqe8f/36267340509.pdfIn PDF document text
    • http://charmingcurls.se/upload/file/tazokifazosugedojomukigax.pdfIn PDF document text
    • http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f26177aeeb---97806999584.pdfIn PDF document text
    • https://suprizpin.com/calisma2/files/uploads/mubawifexulefedetavajofa.pdfIn PDF document text
    • http://ssaisarang.com/ckfinder/userfiles/files/wobod.pdfIn PDF document text
    • https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/161148f7f55784---41909572393.pdfIn PDF document text
    • http://m-camper.ru/ckfinder/userfiles/files/1623817135.pdfIn PDF document text
    • https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/49ac81a88bd6519f7b2a1ffb85ea259b/kaluranizekelozesuxadinuj.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=june+from+the+handmaid%27s+talePDF 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_off0000eaed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAED 10744 bytes
SHA-256: 8479dc163bfd90b89256c7aa59e5e1fbd19ea7e00d40ab93cf1b4bfff6f6d769