Behavioral task
behavioral1
Sample
f0b2e93939fa8e8ef3831554a9fbfca80f8c37f39c27d4296aa5cc77da6200a9.exe
Resource
win7-20230831-en
General
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Target
f0b2e93939fa8e8ef3831554a9fbfca80f8c37f39c27d4296aa5cc77da6200a9
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Size
3.1MB
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MD5
07bc9f64364b0713f22ec9bf5f0cb3af
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SHA1
3106f5d042d04b0b10b71ea4819163a4cc2380f6
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SHA256
f0b2e93939fa8e8ef3831554a9fbfca80f8c37f39c27d4296aa5cc77da6200a9
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SHA512
eb51f8a5dc9824745f192510e480cb312e55c5bcfcefe24e003ee49d714558f834c19312f05d170f944c72b5d1228b19b54d501d9d0eeaced6ba9aca6f5a3958
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SSDEEP
49152:SvVcIC2SsaNYfdPBldt698dBcjHJxcEf8Tk/JaSoGdzb0XHHB72eh2NT:SvnC2SsaNYfdPBldt6+dBcjHJxx7
Malware Config
Extracted
quasar
1.4.1
Office04
120.25.239.25:59823
8e2edf14-dcaf-403d-ab35-067023ce866a
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encryption_key
BF14D97A073A6E69BADC1696EECD7763E3598D7B
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install_name
System32.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
System32 Client Startup
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subdirectory
System32
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 f0b2e93939fa8e8ef3831554a9fbfca80f8c37f39c27d4296aa5cc77da6200a9
Files
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f0b2e93939fa8e8ef3831554a9fbfca80f8c37f39c27d4296aa5cc77da6200a9.exe windows:4 windows 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