Behavioral task
behavioral1
Sample
359367716a543f967e551c97ec94a6bf4c1e7e08cf5c6c0b91aa4e046d44f4d1.exe
Resource
win7-20231215-en
General
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Target
359367716a543f967e551c97ec94a6bf4c1e7e08cf5c6c0b91aa4e046d44f4d1
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Size
3.1MB
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MD5
df415a94b93536e36060b33baa82546d
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SHA1
08cfa785b11927a3053de2eb3ba9c17b313fca82
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SHA256
359367716a543f967e551c97ec94a6bf4c1e7e08cf5c6c0b91aa4e046d44f4d1
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SHA512
698547aedf83338f1880a8c1ce65c1913cf77f089a6b41473dc62e585884357a63e0711550ae7dbba98a1719cce3a6424be50d6e15305a73fe5b26544d957654
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SSDEEP
49152:mvVt62XlaSFNWPjljiFa2RoUYIrT76+zoG6HXu4THHB72eh2NT:mvn62XlaSFNWPjljiFXRoUYIrT76Y
Malware Config
Extracted
quasar
1.4.1
Office01
31.220.97.187:443
0505375d-d956-4c5c-b735-c942a92b89cb
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encryption_key
535E12CCD94BDC2CFFD2A9CFF6D5C3251B8CDAE3
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install_name
winboot.exe
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log_directory
Logs
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reconnect_delay
5000
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startup_key
UEFI boot
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subdirectory
bootufi
Signatures
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Quasar family
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Quasar payload 1 IoCs
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource 359367716a543f967e551c97ec94a6bf4c1e7e08cf5c6c0b91aa4e046d44f4d1
Files
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359367716a543f967e551c97ec94a6bf4c1e7e08cf5c6c0b91aa4e046d44f4d1.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: 3KB - 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