Behavioral task
behavioral1
Sample
2f511d2b5082a059bbc56ddd78b3a2dbe221941f70b42d1e7740dbdcd4a5be12.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2f511d2b5082a059bbc56ddd78b3a2dbe221941f70b42d1e7740dbdcd4a5be12.exe
Resource
win10v2004-20231215-en
General
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Target
2f511d2b5082a059bbc56ddd78b3a2dbe221941f70b42d1e7740dbdcd4a5be12
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Size
3.1MB
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MD5
1a9fc6d523ce020286a56241c37badcf
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SHA1
f68451dece1943443ac6a77cceb4bb447eaeb5dc
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SHA256
2f511d2b5082a059bbc56ddd78b3a2dbe221941f70b42d1e7740dbdcd4a5be12
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SHA512
11f731dea0d621be05d090e634b352e10ed7f0df19808561e1be030175ddc22c84fd614a70af838824da8daa2a56871fc0969686c4245846c01ef08d0f72ed61
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SSDEEP
49152:fvLlL26AaNeWgPhlmVqvMQ7XSKwXRJ6abR3LoGdu5THHB72eh2NT:fvxL26AaNeWgPhlmVqkQ7XSKwXRJ60
Malware Config
Extracted
quasar
1.4.1
Yadu Desktop
192.168.0.117:5952
7c1aa5fc-2493-4922-84eb-b0c9e594a178
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encryption_key
288DD8FDFEEFAB4F6D1AF0DB22F3D719A454FE7C
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install_name
Realtek.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Realtek Audio Manager
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subdirectory
Realtek Audio Manager
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 2f511d2b5082a059bbc56ddd78b3a2dbe221941f70b42d1e7740dbdcd4a5be12
Files
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2f511d2b5082a059bbc56ddd78b3a2dbe221941f70b42d1e7740dbdcd4a5be12.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