Behavioral task
behavioral1
Sample
client.zip
Resource
win11-20240426-en
General
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Target
client.zip
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Size
1.2MB
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MD5
0cc760b657bb0ee0da4c2d91a524c2c9
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SHA1
b46917d25595bd85e216144982e4ee2eb8391a3f
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SHA256
6b4950508f491507d0c137aaab8c290dac4bf0a2e134b34f47f4eec4155a1bae
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SHA512
c460052118e8355443440458f750eedb232a3a7eeded5b26238ad8c8aff65a9eac5c8efd2fcf57d870d2ea34b91225957b91c44ecc5e73a86b8e365a06f516c6
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SSDEEP
24576:/yWXmlwiwj1IN6W7Y3pOSW/DWZRYbF51fSTC41B0a4ERM5gXF+KAyS:/MTwhIN6WScNiZebFXfE6a4ERM5a+KAx
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.50.244:4782
8c0dd4a8-9378-4bb0-a8b0-01c7a7abc4a0
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encryption_key
25C9945CAA6B7DC1F00936AF44864E2B40484EAE
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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
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 static1/unpack001/Client-built.exe family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/Client-built.exe
Files
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client.zip.zip
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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