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Behavioral task
behavioral1
Sample
CACert/CACert.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
CACert/CACert.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
CACert/Credit Agricole Certification.exe
Resource
win7-20241010-en
General
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Target
a0afd97f96d8f8eae7f077296301e102a8e85a06daf09920c92e7b203c5e3236
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Size
2.1MB
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MD5
4539a5d184def6cb13472c306ecc9288
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SHA1
db4895027c9c37ce712f4c6f74aa1499034a25e0
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SHA256
a0afd97f96d8f8eae7f077296301e102a8e85a06daf09920c92e7b203c5e3236
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SHA512
59abd68e8ea3bde6607d0a5bf7a6a2c0d9860a20bc9c869cea158c75a8e86e2a8ed53599c48ee65b26fbc1d38dea84ab28ddbdf48c416b7311184cbccacf9c06
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SSDEEP
49152:B+V+zg3tk0spQsyXJEvYb9eO5Ragd+LMu8XRTU/casY:W3tSp4Jrl4qr16zsY
Malware Config
Extracted
quasar
1.4.1
Noah
creditagricole.zapto.org:4444
35b7f2fc-d3c2-4c55-949a-438b2c403cbf
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encryption_key
482EAF21E4E65641294432E5F419F7A5A916811B
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install_name
CACert.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Credit Agricole Cert
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 1 IoCs
resource yara_rule static1/unpack001/CACert/CACert.exe family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/CACert/CACert.exe
Files
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a0afd97f96d8f8eae7f077296301e102a8e85a06daf09920c92e7b203c5e3236.zip
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CACert/CACert.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
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_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 3.1MB - Virtual size: 3.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 6KB - Virtual size: 5KB
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
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CACert/Credit Agricole Certification.exe.exe windows:4 windows x86 arch:x86
fa4d5c869351014d1ce952f2833a7558
Code Sign
ec:5c:0f:e2:5b:d2:02:aeCertificate
IssuerCN=1c524951-0ca0-4b18-93f4-54edab88793aNot Before01/10/2024, 05:45Not After01/10/2025, 17:45SubjectCN=1c524951-0ca0-4b18-93f4-54edab88793a9a:3b:76:53:32:10:9e:4e:16:c4:63:1d:27:6f:d7:64:80:93:b0:50Signer
Actual PE Digest9a:3b:76:53:32:10:9e:4e:16:c4:63:1d:27:6f:d7:64:80:93:b0:50Digest Algorithmsha1PE Digest MatchesfalseHeaders
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
Imports
user32
MessageBoxA
shell32
ShellExecuteExW
msvcrt
_controlfp
_except_handler3
__set_app_type
__p__fmode
__p__commode
_adjust_fdiv
__setusermatherr
_initterm
__getmainargs
_acmdln
exit
_XcptFilter
_exit
memcpy
free
malloc
wcscmp
memcmp
memmove
strlen
wcslen
wcscpy
wcscat
memset
kernel32
GetStartupInfoA
GetModuleHandleA
SetFilePointer
WriteFile
ReadFile
CreateFileW
DeleteFileW
FindNextFileW
RemoveDirectoryW
FindFirstFileW
FindClose
GetModuleFileNameW
GetCommandLineW
GetTempPathW
GetCurrentThreadId
GetTickCount
GetCurrentProcessId
CreateDirectoryW
GetLastError
SetFileTime
SetFileAttributesW
CreateProcessW
CloseHandle
WaitForSingleObject
Sections
.text Size: 21KB - Virtual size: 21KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 512B - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 18KB - Virtual size: 18KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ