Behavioral task
behavioral1
Sample
OperaSetup.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
OperaSetup.exe
Resource
win10-20230703-en
General
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Target
OperaSetup.exe
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Size
6.1MB
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MD5
187340d0966252e19cd25234908be33d
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SHA1
47d9e8f4be1f2cb8dc9e979ce17344b2a906de4e
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SHA256
1c041ceec32a88f14ba0705059598af65206ab7a61abff23b012b95928890d59
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SHA512
7f63b5567ef65b3aa98331f27699b3f88f0ed3f793567427998770d185a80714b1a74d3ea6492ab3456df2f1f59c498032d07eaa41751c3cd29e02dbd8e90853
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SSDEEP
98304:gGh5ziNlRUaub+MPDrc/c+NmXnKyFrsqC4HIs2iTa2UUePNlcF134zJM70TR16r:g3NlqaubXgUCqCmjmMii
Malware Config
Extracted
quasar
-
reconnect_delay
3000
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 OperaSetup.exe
Files
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OperaSetup.exe.exe windows x86
Password: opera-fake3
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: 6.0MB - Virtual size: 6.0MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.sdata Size: 512B - Virtual size: 177B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 31KB - Virtual size: 31KB
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