General
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Target
Probemos.exe
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Size
3.1MB
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MD5
b4710cbc23ac3cca2e21b2d28e7c91c7
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SHA1
0fdfaa530d55fab75c9dbb4452ace1c1f31deda0
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SHA256
48d94bfa639ca4fd947e3fda203ccc16e3bb85761e11a0428f563753374de0ff
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SHA512
c6663f8dca6cf42364b7ba711355b714423ee52635754a5ab8f8973cf6edefb0e2fcd9ed83299dc036fa4b6514ec4233a52c887b98b1c9bbbf0c837a258f7535
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SSDEEP
49152:Dv+lL26AaNeWgPhlmVqvMQ7XSKWMYoybRALoGdeXTHHB72eh2NT:DvuL26AaNeWgPhlmVqkQ7XSKWXoNu
Malware Config
Extracted
quasar
1.4.1
Office04
AdanFlores3912-54860.portmap.host:54860
e51e2b65-e963-4051-9736-67d57ed46798
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encryption_key
AEA258EF65BF1786F0F767C0BE2497ECC304C46F
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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
SubDir
Signatures
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Quasar family
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Quasar payload 1 IoCs
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource Probemos.exe
Files
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Probemos.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