Behavioral task
behavioral1
Sample
50684cb3400e3cd4959c2ccd2dd900a157ef3163179adcf8da15ed5b7b41694b.exe
Resource
win10v2004-20240226-en
General
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Target
50684cb3400e3cd4959c2ccd2dd900a157ef3163179adcf8da15ed5b7b41694b
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Size
3.1MB
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MD5
7b9d9f41d274ddd8fac0544e188ade4a
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SHA1
20050de536fbf27cdbfbdd0671af913e04106363
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SHA256
50684cb3400e3cd4959c2ccd2dd900a157ef3163179adcf8da15ed5b7b41694b
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SHA512
c102873fa15ffd776ab17b16cd39d6ac95c8412dc8c4a0c8c28e1579dd0d03f9fa4f4985d419a76cd4853c5769ea4e95a24c4c1a9c61c98b7508d97c13b345af
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SSDEEP
49152:zv2I22SsaNYfdPBldt698dBcjHXaRJ6qbR3LoGd1THHB72eh2NT:zvb22SsaNYfdPBldt6+dBcjHXaRJ6E
Malware Config
Extracted
quasar
1.4.1
KZ1
77.232.132.25:4999
8892f097-602a-41ca-8df2-0bf3fd113bd2
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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 50684cb3400e3cd4959c2ccd2dd900a157ef3163179adcf8da15ed5b7b41694b
Files
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50684cb3400e3cd4959c2ccd2dd900a157ef3163179adcf8da15ed5b7b41694b.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