Malicious PDF — malware analysis report

Static analysis result for SHA-256 7eca6eedb24057ba…

MALICIOUS

PDF

87.5 KB Created: 2021-07-31 06:58:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 52d7aec94cfce011e493a4046e8fc2c5 SHA-1: 2d5db5fbd374c42bfc6648ff8fe342beb7e1faa6 SHA-256: 7eca6eedb24057baef2dbdcbdfec8347d16bab90c31b214822d82589973fcdd9
176 Risk Score

Malware Insights

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

This PDF document was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains a link farm pointing to various PDF files hosted on potentially compromised or disposable domains, suggesting an attempt to distribute malicious content or phish users. The presence of a callback lure heuristic indicates the document likely prompts the user to call a phone number, a common tactic in tech support scams or refund fraud schemes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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 http://czechnews.cz/userfiles/files/witafapus.pdf In PDF document text
    • https://www.nordatec.com/wp-content/plugins/super-forms/uploads/php/files/q2uc866s5fcre8jd7jjev2qaka/fanotuvegewuzepemado.pdfIn PDF document text
    • http://edanieltour.com/FileData/ckfinder/files/20210726_4347FD3AE315FE47.pdfIn PDF document text
    • https://zoorichi.com/temp/fckeditor/file/30952138310.pdfIn PDF document text
    • https://penal-garazh.ru/files/wifanipomafuwumasoz.pdfIn PDF document text
    • http://faceconnects.com/ci/userfiles/files/72632647287.pdfIn PDF document text
    • https://cgeminfos.ma/upload/file/19198116895.pdfIn PDF document text
    • http://saatgaamkansarasamaj.com/admin/uploads/files/29792465030.pdfIn PDF document text
    • http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c13c27b22e8---fizigoxerozis.pdfIn PDF document text
    • http://dulichtantai.com/files/uploaded/files/74483343400.pdfIn PDF document text
    • https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/qc6anvekie896jps2m3bvnuanc/xukivuxafogisevawijolavo.pdfIn PDF document text
    • http://dralituncer.com/userfiles/file/42467103117.pdfIn PDF document text
    • https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9699f6f6ab---65580516330.pdfIn PDF document text
    • https://ip-pharma.net/data/files/nituvusifoxanube.pdfIn PDF document text
    • http://indecomavo.pl/inc/72210460255.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606df8ce71bcb---dufatonop.pdfIn PDF document text
    • http://sharise.net/Uploadfiles/files/98461455004.pdfIn PDF document text
    • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/1ce393cbeafa2baf65e9057091785017/76845268274.pdfIn PDF document text
    • http://come2menorca.com/images/file/33976318083.pdfIn PDF document text
    • http://bamt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1609b263caf991---12213532677.pdfIn PDF document text
    • https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/us0lh5jd08ph6i1mi8rqaa6e6f/62798510724.pdfIn PDF document text
    • https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c876fa336f9---30372953005.pdfIn PDF document text
    • https://bladmedyczny24.pl/wp-content/plugins/super-forms/uploads/php/files/ebd672b4eb0fef685f3d1201c119732d/zunidaxa.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=wifi+password+revealer+android+no+rootPDF link annotation
    • 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_off0000f10e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF10E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010920.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10920 17876 bytes
SHA-256: 34584097aec876feb68baeadd20a19f5f5a0ddb5a292bb33cc065a49b04b4cb8
font_02_sfnt_off0001377f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1377F 10636 bytes
SHA-256: 10e5000eb6ef5f0ebbc94be7a4a3ac7a26f7dfa6de6ab73be074bf65a9ead9f3

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