Overview
overview
6Static
static
3Crystal disk.zip
windows10-1703-x64
1Crystal di...il.exe
windows10-1703-x64
1Crystal di...l4.exe
windows10-1703-x64
1Crystal di...48.exe
windows10-1703-x64
1Crystal di...it.dll
windows10-1703-x64
1Crystal di...it.dll
windows10-1703-x64
1Crystal di...rs.dll
windows10-1703-x64
1Crystal di...h.html
windows10-1703-x64
4Crystal di...8.html
windows10-1703-x64
4Crystal di...n.html
windows10-1703-x64
4Crystal di...min.js
windows10-1703-x64
1Crystal di...min.js
windows10-1703-x64
1Crystal di...min.js
windows10-1703-x64
1Crystal di...64.dll
windows10-1703-x64
1Crystal di...86.dll
windows10-1703-x64
1Crystal di...64.dll
windows10-1703-x64
1Crystal di...86.dll
windows10-1703-x64
3Crystal di...64.dll
windows10-1703-x64
1Crystal di...64.dll
windows10-1703-x64
1Crystal di...86.dll
windows10-1703-x64
3Crystal di...64.dll
windows10-1703-x64
1Crystal di...64.dll
windows10-1703-x64
1Crystal di...64.dll
windows10-1703-x64
1Crystal di...86.dll
windows10-1703-x64
3Crystal di...ec.exe
windows10-1703-x64
1Crystal di...32.exe
windows10-1703-x64
6Crystal di...64.exe
windows10-1703-x64
6Crystal di...64.exe
windows10-1703-x64
Analysis
-
max time kernel
135s -
max time network
150s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
20-04-2024 10:39
Static task
static1
Behavioral task
behavioral1
Sample
Crystal disk.zip
Resource
win10-20240404-en
Behavioral task
behavioral2
Sample
Crystal disk/CdiResource/AlertMail.exe
Resource
win10-20240404-en
Behavioral task
behavioral3
Sample
Crystal disk/CdiResource/AlertMail4.exe
Resource
win10-20240404-en
Behavioral task
behavioral4
Sample
Crystal disk/CdiResource/AlertMail48.exe
Resource
win10-20240404-en
Behavioral task
behavioral5
Sample
Crystal disk/CdiResource/MailKit.dll
Resource
win10-20240404-en
Behavioral task
behavioral6
Sample
Crystal disk/CdiResource/MimeKit.dll
Resource
win10-20240404-en
Behavioral task
behavioral7
Sample
Crystal disk/CdiResource/System.Buffers.dll
Resource
win10-20240404-en
Behavioral task
behavioral8
Sample
Crystal disk/CdiResource/dialog/Graph.html
Resource
win10-20240404-en
Behavioral task
behavioral9
Sample
Crystal disk/CdiResource/dialog/Graph8.html
Resource
win10-20240404-en
Behavioral task
behavioral10
Sample
Crystal disk/CdiResource/dialog/Option.html
Resource
win10-20240404-en
Behavioral task
behavioral11
Sample
Crystal disk/CdiResource/dialog/flot/excanvas.min.js
Resource
win10-20240404-en
Behavioral task
behavioral12
Sample
Crystal disk/CdiResource/dialog/flot/jquery.flot.min.js
Resource
win10-20240404-en
Behavioral task
behavioral13
Sample
Crystal disk/CdiResource/dialog/flot/jquery.min.js
Resource
win10-20240404-en
Behavioral task
behavioral14
Sample
Crystal disk/CdiResource/dll/AMD_RC2t7x64.dll
Resource
win10-20240404-en
Behavioral task
behavioral15
Sample
Crystal disk/CdiResource/dll/AMD_RC2t7x86.dll
Resource
win10-20240404-en
Behavioral task
behavioral16
Sample
Crystal disk/CdiResource/dll/JMB39x64.dll
Resource
win10-20240404-en
Behavioral task
behavioral17
Sample
Crystal disk/CdiResource/dll/JMB39x86.dll
Resource
win10-20240404-en
Behavioral task
behavioral18
Sample
Crystal disk/CdiResource/dll/JMB39xA64.dll
Resource
win10-20240404-en
Behavioral task
behavioral19
Sample
Crystal disk/CdiResource/dll/JMS56x64.dll
Resource
win10-20240404-en
Behavioral task
behavioral20
Sample
Crystal disk/CdiResource/dll/JMS56x86.dll
Resource
win10-20240404-en
Behavioral task
behavioral21
Sample
Crystal disk/CdiResource/dll/JMS56xA64.dll
Resource
win10-20240404-en
Behavioral task
behavioral22
Sample
Crystal disk/CdiResource/dll/JMS586A64.dll
Resource
win10-20240404-en
Behavioral task
behavioral23
Sample
Crystal disk/CdiResource/dll/JMS586x64.dll
Resource
win10-20240404-en
Behavioral task
behavioral24
Sample
Crystal disk/CdiResource/dll/JMS586x86.dll
Resource
win10-20240404-en
Behavioral task
behavioral25
Sample
Crystal disk/CdiResource/opus/opusdec.exe
Resource
win10-20240404-en
Behavioral task
behavioral26
Sample
Crystal disk/DiskInfo32.exe
Resource
win10-20240404-en
Behavioral task
behavioral27
Sample
Crystal disk/DiskInfo64.exe
Resource
win10-20240404-en
Behavioral task
behavioral28
Sample
Crystal disk/DiskInfoA64.exe
Resource
win10-20240404-en
General
-
Target
Crystal disk/CdiResource/dll/AMD_RC2t7x86.dll
-
Size
153KB
-
MD5
83961471594193b722f0fbc0f21b6944
-
SHA1
9add0f76f63e32558116d97afdec0ea2d6f998a3
-
SHA256
68d7f33a3fa41668a07e4febe68f15d1d0107024cbbafc938a1af283ca0ff07c
-
SHA512
f93f406ff15be88ad23bcd43d1bd14a3fc39578e3c961063dce3c1285583aa1d78d67506c004d4882e2f9c188df1a78f4031a2038702d16dbcccbc94122b3185
-
SSDEEP
3072:Zl5kl59rYRjNgQLfLbOEEdIGy4e/LZvUFPhhz31XNfjZfSzfYZfSp:/u9keQLTbBE+GRachzlXjXk
Malware Config
Signatures
-
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
rundll32.exedescription pid process target process PID 2448 wrote to memory of 3536 2448 rundll32.exe rundll32.exe PID 2448 wrote to memory of 3536 2448 rundll32.exe rundll32.exe PID 2448 wrote to memory of 3536 2448 rundll32.exe rundll32.exe
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Local\Temp\Crystal disk\CdiResource\dll\AMD_RC2t7x86.dll",#11⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Local\Temp\Crystal disk\CdiResource\dll\AMD_RC2t7x86.dll",#12⤵