General
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Target
Client-built.exe
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Size
3.1MB
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MD5
d71b9f864361e49d0274c9e18b877093
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SHA1
eb621f94801e47c5e1ec03944d020f3a98c446d0
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SHA256
5f7be136679475aeabac1742ed75b13a3a6019a1e26efc07ceb199c5ad016b90
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SHA512
1b535c8b7ed061f035c82d95e91c1ddc7386da4d1d8b7c0d01e55b8f2acd403a9f60ae40e0c5444ce7aea50b029035a8a4c62654e819d98f690bfd7dab9bc02b
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SSDEEP
49152:mvOY52fyaSZOrPWluWBuGG5g5hx7n8LioGd1CTHHB72eh2NT:mvT52fyaSZOrPWluWBDG5g5hx7ntF
Malware Config
Extracted
quasar
1.4.1
test
192.168.1.35:4782
lol
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encryption_key
BA1AB307B42098FBECD193797E23C0F236DEF7E9
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
sigma
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: 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