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
3.1MB
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MD5
20f05826273f12162fa4c07fd0c522ab
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SHA1
eb45020a2a4a44128aa5805b34801ad4ae45cdc0
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SHA256
7f0fce9d1d75bff354d35566d4a0eedc0ee9104633fd859b3566cf9bfa2a711b
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SHA512
25c567a345f3fbcf0e18003d1d53cb34f3e7a7c37c628f0f4b2093a04b78c5fec994032e37b1bc1358bd0ba8beff221458e2ff0cdbe431560dfb2d60aac0c636
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SSDEEP
98304:bvf22SsaNYfdPBldt6+dBcjHNbRJ6k1A:TQ7jL9
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.1.3:4782
6c1cabdf-4141-46d8-99b5-498dc096c6c6
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encryption_key
A2D3322556CF1157C720ECB23F81C201C021107D
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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
SecurityHealthSystray
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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 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