Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7f05d08e2ce1984…

MALICIOUS

PDF

286.2 KB Created: 2010-05-06 10:29:30 -05:00 Authoring application: PScript5.dll Version 5.2.2 (via Acrobat Distiller 8.2.2 (Windows)) First seen: 2026-05-09
MD5: a53fcf8a58b2cfaf83b88466334cc6b8 SHA-1: 4ffcb33191b3e16f89c5cf6adbfdbb81d1f8e5bf SHA-256: b7f05d08e2ce198469de641b986786ba13d316317471a654b132e45911678be8
86 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded JavaScript, which is often used to trigger actions or exploit vulnerabilities. A heuristic firing indicates a callback phishing lure, suggesting the document's content is designed to trick the user into calling a fraudulent phone number. The presence of a UNC path also indicates a potential attempt at credential theft.

Machine Learning

  • Nyx PDF Classifier clean score 0.0696

Heuristics 6

  • UNC path in PDF — possible NTLM credential theft (CVE-2018-4993/CVE-2019-7089) high CVE likely CVE_2018_4993
    PDF contains a UNC path (\\server\share) alongside action triggers — when a vulnerable viewer resolves this path, Windows may send NTLM credentials to the remote host as the matching PDF action is processed
  • 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) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • JavaScript action low 1 related finding PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • AcroForm button with action trigger low PDF_ACROFORM_BUTTON
    PDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures
  • 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 \\II5119086VM08\Vol1\SHARED\IICC31P\Working\PUBLICATIONS\Pixs\Seals-Signatures In PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://ns.adobe.com/xap/1.0/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/mm/In PDF document text
    • http://www.iec.chIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 10

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0052_000.js pdf-javascript-stream PDF /JS object 52 at offset 0x3B233 42 bytes
SHA-256: edc81df06236f4f7f78ad6c2ad7367f010516682b9b95cf24321c54c44a61f34
Preview script
First 1,000 lines of the extracted script
AFNumber_Keystroke(2, 0, 0, 0, "", false);
javascript_obj0151_008.js pdf-javascript-stream PDF /JS object 151 at offset 0x413A7 39 bytes
SHA-256: 1d03a107e45160304b614e4ae31a0dc575017e5d6e59414bb8916127c3277507
Preview script
First 1,000 lines of the extracted script
AFNumber_Format(2, 0, 0, 0, "", false);
javascript_obj0152_009.js pdf-javascript-stream PDF /JS object 152 at offset 0x413F8 42 bytes
SHA-256: bf6e5cec6b360b670b6bd2c73336d76c35e5f2336d421386785389d70cf8237a
Preview script
First 1,000 lines of the extracted script
AFNumber_Keystroke(0, 0, 0, 0, "", false);
javascript_obj0169_010.js pdf-javascript-stream PDF /JS object 169 at offset 0x42166 39 bytes
SHA-256: a38c01daa8a2de78b2151ee01d1c69e81170452d881008dd1b45953b3c94a808
Preview script
First 1,000 lines of the extracted script
AFNumber_Format(0, 0, 0, 0, "", false);
icc_00_off00040467.icc pdf-icc-profile PDF ICC profile at offset 0x40467 3144 bytes
SHA-256: 2b3aa1645779a9e634744faf9b01e9102b0c9b88fd6deced7934df86b949af7e
font_00_raw_off00002b9f.bin pdf-font-stream PDF embedded font (raw) at offset 0x2B9F 5047 bytes
SHA-256: 13661e130ab4c735caff5812a6baa2fcdbb2ffef6dad9a380f8944d1ba761018
font_01_sfnt_off00005561.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5561 6236 bytes
SHA-256: fc0f9b243aff80491b1f2a482d251a06801212b58a9c7eb59790a9c693f91cf1
font_02_sfnt_off00035c22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35C22 7200 bytes
SHA-256: b5762c2ab46af5ab536537741431c088e53768aa90786ecb043075f58083b2a4
font_03_sfnt_off00036d62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36D62 12240 bytes
SHA-256: 6b83615bba274ead991695f869cc71393179f28d0afcdb31489087dd46f2f6be
font_04_sfnt_off000387b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x387B2 5172 bytes
SHA-256: 065d7c4e59c6611524d5a4e6af76ac6f45a811718dcd58fd01b89d5e29f12b6e

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