Behavioral task
behavioral1
Sample
bc354d5e2299c68361b61912201ad7c7.exe
Resource
win7-20231025-en
General
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Target
bc354d5e2299c68361b61912201ad7c7.exe
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Size
3.3MB
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MD5
bc354d5e2299c68361b61912201ad7c7
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SHA1
5cc43483e82a5c36e22e5503be7c4674a906a453
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SHA256
c9c3806de68b4735df007d625d13cbb604068123fa193422ad5d9d70fe3201e3
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SHA512
8a1e2b18b28193c9b79c0327035b64e86c6e457ba179bef898545334bfc6badb0b16684cfd51f0ba3ab9894fd9036022c55e0a2ce5271f94025aba5fa01338a2
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SSDEEP
49152:fv2I22SsaNYfdPBldt698dBcjHbYGjBeMboadQXTHHB72eh2NT:fvb22SsaNYfdPBldt6+dBcjHkG1
Malware Config
Extracted
quasar
1.4.1
DT
77.232.132.25:4999
74f90cb1-2101-421a-86e3-347ca0c7fcd8
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encryption_key
790BD6D1C1540AE1BFB811F2DC1E0185525C5DCB
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install_name
LestaClient.exe
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log_directory
LestaLogs
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reconnect_delay
3000
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startup_key
Lesta Game Center
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subdirectory
Lesta
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 bc354d5e2299c68361b61912201ad7c7.exe
Files
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bc354d5e2299c68361b61912201ad7c7.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: 147KB - Virtual size: 147KB
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