Behavioral task
behavioral1
Sample
opera.exe
Resource
win10-20230703-en
General
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Target
opera.exe
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Size
3.2MB
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MD5
f5b969db9355e0972cded33898f88ad5
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SHA1
e80f5255b188a511296db4a0e48ab84a3ceddf97
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SHA256
d98e7b706741e4da67d03aa23b6776fe4fd118f910a10472e381131b31551169
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SHA512
92e43cce03e2e13e8df42027cd9c20e5fa3b40ec90a5477fd0a0e11e4303645e6bdbee780a12f0b2162733cb9c4cc7c6d76ab5a6a18cbf153274c343d992adce
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SSDEEP
49152:OHPws2iTa2UUePNlcF1TT4zJM7CXwk9hxvJ4ZoGddTHHB72eh2NT:OHIs2iTa2UUePNlcF134zJM7yhY
Malware Config
Extracted
quasar
1.0
Opera
RomaPro28937723-49554.portmap.io:49554
dbdeb9e2-1d62-453a-8c06-8a6bf4be3071
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encryption_key
8A2A7B58F2803115FF796E733C7311493928333B
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install_name
launcher.exe
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log_directory
Opera Logs
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reconnect_delay
3000
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startup_key
Opera Launcher
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subdirectory
Opera Software
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 opera.exe
Files
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opera.exe.exe windows x86
Password: 2
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: 117KB - Virtual size: 116KB
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