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General
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Target
Client-built.exe
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Size
1.3MB
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MD5
24c71e4e30536468929c5389a89b362c
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SHA1
d5b89ee8a110431c464170cad3b3ab3aac8a579f
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SHA256
d95db1b044e9f20d4d56ff93904dadf7272ce22c1dd2b625443636e90d0ba3e5
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SHA512
77d2b579303d5cd250f5f58c78915e9711f6d5b669d1fe582fcac01bba9e5bc73de2018326a139770bad2d96d81a2e5f5f55cf3ba3eafd8b3b859ed0f2598a2f
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SSDEEP
24576:tWO+qYjCoYsv+H5meSWHIPbcNK0KKfaOwI55l2SVcwVN/dEfVKfjFq:tWLx8EgKKHwCBVcEjiKfj
Malware Config
Extracted
quasar
1.5.0
Office04
147.185.221.26:12171
87f86d42-0aec-44a5-b746-a8803e2e4ead
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encryption_key
251B3D6D57078758B504E154DF6317D159089F09
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install_name
svchost.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Update
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subdirectory
en-AR
Signatures
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Quasar family
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Quasar payload 1 IoCs
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Client-built.exe
Files
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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_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 1.3MB - Virtual size: 1.3MB
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