Malicious PDF — malware analysis report

Static analysis result for SHA-256 bebe48a9b68d27f1…

MALICIOUS

PDF

42.9 KB
MD5: 6527e0af23f8fa510e791da6c35bddec SHA-1: c054ff0bd26309ec063543d228d0ae772d82e5ee SHA-256: bebe48a9b68d27f11ca8f8d52ed05086c5d04aff36f78e3e14e2caed767b238f
156 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1566 Phishing T1566.001 Phishing: Spearphishing Attachment T1566.002 Phishing: Spearphishing Link

The critical ClamAV heuristic 'Pdf.Exploit.Agent-36834' indicates the file is a known PDF exploit. The presence of embedded files and scripts, along with embedded URLs, suggests a multi-stage attack. The embedded URLs are likely used to download or redirect to the malicious payload. The document body content is obfuscated and does not provide further clues on the specific lure.

Heuristics 6

  • ClamAV: Pdf.Exploit.Agent-36834 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36834
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • 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://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xci/1.0/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/
    • http://ns.adobe.com/xfdf/
    • http://www.xfa.org/schema/xfa-form/2.8/

Extracted artifacts 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
04462f810d6eacdacecc9d0a5f3f81bebc722af4415e04da19b520338f642b51		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xD7 67 bytes
embedded_file_obj0009.bin
f2a2545079707104a51259a0ba13d6a89c84556d6358e3d7f55117f1925a6ddc		 pdf-embedded-file PDF EmbeddedFile object 9 at offset 0x162 690 bytes
embedded_file_obj0010.bin
1870a8c90be73ebe36ae508f57c55ef58407515a4ad8c7e867914369cf2923c9		 pdf-embedded-file PDF EmbeddedFile object 10 at offset 0x45F 99 bytes
embedded_file_obj0011.bin
5ee5f8b8ba8b6ca4de05b57c16a6cb8550786b5cca05796d21858ad180d33a52		 pdf-embedded-file PDF EmbeddedFile object 11 at offset 0x50D 580 bytes
embedded_file_obj0012.bin
d2f06f3fc6900856fe613a64a561919c8454dcbe0fdf238fb8b43e07016955ea		 pdf-embedded-file PDF EmbeddedFile object 12 at offset 0x79C 190 bytes
embedded_file_obj0014.bin
ff2cf068feb9ea41c5f6cf732ceb8af030943c2ee713a6b09053884b87fea0b3		 pdf-embedded-file PDF EmbeddedFile object 14 at offset 0x8A7 40966 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36834
Obfuscation or payload: unlikely
embedded_file_obj0015.bin
78b09463af5cd373870eae2e3e83de87b7f6b659e0d0117ab4c09d90ebb2ad95		 pdf-embedded-file PDF EmbeddedFile object 15 at offset 0xA8F7 68 bytes

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