Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9343273e8a32ffb…

MALICIOUS

PDF

79.5 KB Created: 2021-09-14 07:43:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: a4978ea7f9f85156a54d6e15454aa8ce SHA-1: 58322f9b588c58f95363aabdb36433a3fda6c206 SHA-256: e9343273e8a32ffbafb4d27d384912a60e6237a480e5428df8780cad70084ce5
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many of which point to disposable hosting or compromised WordPress sites, indicating a link farm designed to redirect users. The presence of a 'Callback phishing phone lure' heuristic further suggests a social engineering attempt. ClamAV detection and ML classification strongly indicate malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

Heuristics 7

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://irlanc.ru/uplcv?utm_term=spice+price+in+delhi PDF link annotation
    • https://angkorphotographyguide.com/userfiles/file/1102956428.pdfIn PDF document text
    • https://laser123.com/geektic/files/65310558121.pdfIn PDF document text
    • http://chamdure.com/DATA/files/wesun.pdfIn PDF document text
    • https://fizjolech.pl/userfiles/file/fegifurexelifunuzuv.pdfIn PDF document text
    • http://studiocariola.com/userfiles/files/16010736495.pdfIn PDF document text
    • http://oppedisanorobertosrl.com/userfiles/files/digopozabomib.pdfIn PDF document text
    • http://ms-krmelin.cz/app/webroot/files/files/75769631535.pdfIn PDF document text
    • http://unstitchedfootwear.net/files/file/98344460083.pdfIn PDF document text
    • https://www.spitalmoldovanoua.ro/ckfinder/userfiles/files/33743908318.pdfIn PDF document text
    • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139d53f2dcea---64331362207.pdfIn PDF document text
    • http://betheaskssd.com/flash/betheaskssd.com/file/80385793060.pdfIn PDF document text
    • http://stacjaregeneracja.pl/userfiles/file/47990124337.pdfIn PDF document text
    • https://devcons.org/uploads/userfiles/files/xemetemugezixapuwo.pdfIn PDF document text
    • http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/161390b705e9f3---54099462327.pdfIn PDF document text
    • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135157146c4b---71966998064.pdfIn PDF document text
    • https://dalnoboy.com/data/filestorage/upload/files/58068417026.pdfIn PDF document text
    • http://studiotecnicodavico.eu/userfiles/files/7213448228.pdfIn PDF document text
    • http://balmybnb.com/t/tutorfirm/uploads/ck/files/bimup.pdfIn PDF document text
    • https://peisheng.org/uploads/ckfiles/files/613fd9b46f21d.pdfIn PDF document text
    • https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/257d10b25bae1095726d2b849f182a8a/genozelawudaworas.pdfIn PDF document text
    • https://numen-wow.com/userfiles/cloud/files/90447427972.pdfIn PDF document text
    • https://kaplaitalia.it/userfiles/files/jibaxazuboxer.pdfIn PDF document text
    • http://onestep-tokyo.com/userfiles/file/96858690013.pdfIn PDF document text
    • https://www.sophrologue-nimes.fr/upload/news/files/medusa.pdfIn PDF document text
    • https://pierrelemagicien.com/userfiles/file/84021985940.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_off0000cff1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFF1 10140 bytes
SHA-256: b57b5ac79b36788ba1a4a10c3474279aa3051f893eeb90de58427439e30e7252
font_01_sfnt_off0000e66a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE66A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000fe7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE7C 18880 bytes
SHA-256: 94f0ca3d46abe82e1f4da9f0158e4bedffec779fa39db21d87b2e45d2ff032b7

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