Behavioral task
behavioral1
Sample
Beta.exe
Resource
win7-20240221-en
General
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Target
Beta.exe
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Size
3.1MB
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MD5
bb26a2979d9a61725f910422403ed4dd
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SHA1
b46d4a3a7f7253e1d7268c060702d301ebb36dd6
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SHA256
fb80d28a129184b6a273bd893aeee80765b6ec3eb617d90c6d32d0738bcbbfef
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SHA512
dfa1d068282cae728f6adf890065c0dcecbf9215646f50313d995afd209f52c07f3fd8e1e414c8712af1e2b5306ef453a9b6419f1c574dbd445acbc276426200
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SSDEEP
49152:ivEt62XlaSFNWPjljiFa2RoUYI9ihqKhHvJQMoGd9THHB72eh2NT:ivY62XlaSFNWPjljiFXRoUYImh5
Malware Config
Extracted
quasar
1.4.1
Astro-1
arthurus36.duckdns.org:5555
ad7cd985-5e2e-45a3-9246-b82449c7c4d8
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encryption_key
6314C8C60AA1035CEB920FD38F0342E398BAF5D0
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install_name
cmdprmpt.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
systemdex
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 Beta.exe
Files
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Beta.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