Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240903-en
General
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Target
Client-built.exe
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Size
348KB
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MD5
2ba09f53e30ef8c5d76398627edc43d1
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SHA1
1fe3307b985972b457abcf9f2152164699afa208
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SHA256
e98b1dbab728749f570394ce8b74ec14fc323dcefdb7cabd6d93da22e7bffe9f
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SHA512
2a6f2da1f92b10cf7d244e744496777539b96e2d5ced8e6ac2a6ddaad96c5418b70e5d6639bafb4787c9d6dcecff00cb1edca0680584899be7a5808223af0a4c
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SSDEEP
6144:7bwb/c2L0tkuj4xcwYrbgkl8MQ/LlHvsrROO:HH2Le8x9YAkl4/LNvsQO
Malware Config
Extracted
quasar
1.3.0.0
Clint
192.168.178.29:4780
192.168.178.29:4782
QSR_MUTEX_02VEKG7zCDubNpN0wF
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encryption_key
yNBSWqkrzBAexUKe7XeZ
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install_name
robloxfisch.exe
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log_directory
Log
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
SubDir
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_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