Malicious PDF — malware analysis report

Static analysis result for SHA-256 028463aaeafd704b…

MALICIOUS

PDF

41.2 KB Authoring application: pstoedit
MD5: f832c864324935c837ff8a2ce49f7837 SHA-1: cf5f7d708a09cb10fe82e326bff32cc477849a30 SHA-256: 028463aaeafd704bfbc10efb6f5bf254e32e3629c403022253ae30ef1054e4eb
180 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to host malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. The document body, though heavily obfuscated, mentions 'Union bank of india e kyc form', suggesting a phishing lure related to financial services.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://suzannekompass.com/uploads/1/3/0/3/130313180/8056466.pdf
    • http://nathanielmuncie.com/uploads/1/3/0/7/130776836/sozuvefepewokaf.pdf
    • http://www.mountainconquest.com/uploads/1/3/0/8/130813616/motokutopolalobujomi.pdf
    • http://josephanspach.com/uploads/1/3/0/5/130542953/241ab6.pdf
    • http://albertapreventative.com/uploads/1/3/0/2/130288514/9975012.pdf
    • http://midmichyouthultimate.com/uploads/1/3/0/4/130477310/zitijibogisuk.pdf
    • http://dgiindex.org/uploads/1/3/0/5/130550704/2401424.pdf
    • http://streetwalkers.club/uploads/1/3/0/5/130539009/06f8c304.pdf
    • http://my-zero-stress.com/uploads/1/3/0/6/130604072/9b868cfd4a11d.pdf
    • http://clayocomedy.com/uploads/1/3/0/6/130621751/jamifu-mavokapeboz-vakibaz.pdf
    • http://www.airfan.be/uploads/1/3/0/7/130775884/5595813.pdf
    • http://traffics.site/uploads/1/3/0/6/130604287/zenube-widanewunemir-nilonupasozive-kawajonesokejo.pdf
    • http://charlottepropertync.com/uploads/1/3/0/3/130379803/8828128.pdf
    • http://utopiasalonspaboutique.com/uploads/1/3/0/6/130604392/0d60bb109c9b6.pdf
    • http://webdisk.dokimellc.com/uploads/1/3/0/8/130874671/gamej-fawibu-waselewotofewul.pdf
    • http://not-knapping.com/uploads/1/3/0/6/130639781/wukolajasudole_nozedi.pdf
    • http://my-seh-ensley.com/uploads/1/3/0/6/130620475/tivovelilo.pdf
    • http://aclassta.com.au/uploads/1/3/0/5/130551456/1981741.pdf
    • http://wesleyoverwindsor.com/uploads/1/3/0/7/130775088/xitopunoke.pdf
    • http://adsl-63-204-18-56.benefitplans.org/uploads/1/3/0/9/130969433/130969433.html#union+bank+of+india+e+kyc+form
    • https://savannah.gnu.org/projects/freefont/
    • http://www.gnu.org/licenses/
    • http://www.gnu.org/copyleft/gpl.html

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e99.bin
750c92fa1db5810c6de6b1040e9c0837d38486580b44de1cde3f2eb8b8040d63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E99 6664 bytes
font_01_sfnt_off00004254.bin
363fdb1927b960e408ca4d5b550acdd72ce6f3178764338d7bd869b1ad432d83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4254 7908 bytes

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