Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win10-20240404-en
Behavioral task
behavioral2
Sample
Client-built.exe
Resource
win10v2004-20240426-en
General
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Target
Client-built.exe
-
Size
348KB
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MD5
0b7139d2d35eb6fb4638ec14b469df7e
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SHA1
5b3644a8be1e3ef885b5809b857142295ed2a4d1
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SHA256
947ecae6beac19b2fe2154f68940462655843cd5f36db14c0ab0b57cff623138
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SHA512
84ae5d2017f268a1249ab1346de9ebda1ab41621b790ecd24cc75df95e9d8415720395b022d4f367819eda642b19a42f31bf50b87a4d980237471b6dcb1041c9
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SSDEEP
6144:0jEHwNHJsa2gKMRQDbRFunXCpsIqlfoF:Cxpsa8W6uXC3qRO
Malware Config
Extracted
quasar
1.3.0.0
Deadly
uk2.localto.net:3955
QSR_MUTEX_Kpy5UOokQcRvJFzawH
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encryption_key
42mkSeUsHVtyogVkUtuz
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install_name
$dead-Client.exe
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log_directory
$dead-Logs
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reconnect_delay
3000
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startup_key
Powershell
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subdirectory
$dead-deadly2
Signatures
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Quasar family
-
Quasar payload 1 IoCs
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource Client-built.exe
Files
-
Client-built.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_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 345KB - Virtual size: 344KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 2KB - Virtual size: 2KB
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