Overview
overview
3Static
static
3f175fcc7b1...37.zip
windows11-21h2-x64
1CrystalUS.exe
windows11-21h2-x64
1cfg.json
windows11-21h2-x64
3formats/Arcane.cus
windows11-21h2-x64
3formats/DCRat.cus
windows11-21h2-x64
3formats/De...#2.cus
windows11-21h2-x64
3formats/De...#3.cus
windows11-21h2-x64
3formats/De...#4.cus
windows11-21h2-x64
3formats/De...#5.cus
windows11-21h2-x64
3formats/De...#6.cus
windows11-21h2-x64
3formats/Default.cus
windows11-21h2-x64
3formats/Taurus.cus
windows11-21h2-x64
3formats/We...ew.cus
windows11-21h2-x64
3Static task
static1
Behavioral task
behavioral1
Sample
f175fcc7b1277b9c2d58256c3aca1fe0810b1937.zip
Resource
win11-20231215-en
Behavioral task
behavioral2
Sample
CrystalUS.exe
Resource
win11-20231215-en
Behavioral task
behavioral3
Sample
cfg.json
Resource
win11-20231215-en
Behavioral task
behavioral4
Sample
formats/Arcane.cus
Resource
win11-20231215-en
Behavioral task
behavioral5
Sample
formats/DCRat.cus
Resource
win11-20231222-en
Behavioral task
behavioral6
Sample
formats/Default #2.cus
Resource
win11-20231215-en
Behavioral task
behavioral7
Sample
formats/Default #3.cus
Resource
win11-20231222-en
Behavioral task
behavioral8
Sample
formats/Default #4.cus
Resource
win11-20231215-en
Behavioral task
behavioral9
Sample
formats/Default #5.cus
Resource
win11-20231222-en
Behavioral task
behavioral10
Sample
formats/Default #6.cus
Resource
win11-20231215-en
Behavioral task
behavioral11
Sample
formats/Default.cus
Resource
win11-20231215-en
Behavioral task
behavioral12
Sample
formats/Taurus.cus
Resource
win11-20231222-en
Behavioral task
behavioral13
Sample
formats/WebBrowserPassView.cus
Resource
win11-20231222-en
General
-
Target
f175fcc7b1277b9c2d58256c3aca1fe0810b1937.zip
-
Size
370KB
-
MD5
0a82d4eda81856f2557bf0130a9ce441
-
SHA1
1c9b4c3ef6e28257f2ea4d09fd6fa7716c952aef
-
SHA256
b159571a5c041381b9724db770c4e79091fff899c1aecfa0248b9a424d8d3102
-
SHA512
40a109bee732db2e16ff28d4c7cfabadd606850b5216293764756d25ff53cb31d9cbf659cd4185c4bb456bdb197a278438c65068f040382803e00a5b5c12335a
-
SSDEEP
6144:cMLsUzUpMcGfnKPJoQQnWnHfz/EdFEmGi9GtVBA22GP4m8iaEKMMK1:jLsUiMc+nQZQGzM3tGioBABWsEKMF1
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/CrystalUS.exe
Files
-
f175fcc7b1277b9c2d58256c3aca1fe0810b1937.zip.zip
-
CrystalUS.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
mscoree
_CorExeMain
Sections
.text Size: 794KB - Virtual size: 794KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 14KB - Virtual size: 13KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
-
cfg.json
-
formats/Arcane.cus
-
formats/DCRat.cus
-
formats/Default #2.cus
-
formats/Default #3.cus
-
formats/Default #4.cus
-
formats/Default #5.cus
-
formats/Default #6.cus
-
formats/Default.cus
-
formats/Taurus.cus
-
formats/WebBrowserPassView.cus