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
1a9fc6d523ce020286a56241c37badcf.bin
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Size
1.2MB
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MD5
4e1a0e1df39670cd89801947255b9bf4
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SHA1
d58be6e00aa72abfaed28e4fcace613ecb2df535
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SHA256
22d49f7329fb60fee6b0e67e0ca48934d0edc9a2e87bf30bf6af8b9fe232b878
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SHA512
07a4ab38d4942b0871dece06d0e55ae9a6c0839108471d72b5655c8acca8000d11759d11929365ce3d64f23b7e2ca313c46eed27b4b6aa578f0e8a7d4ece6efe
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SSDEEP
24576:rvYAetFQ/bHxeK/9TuE65StZi+R2+muHRVdMJXmGJJ78u22b:rgHFQ/boA0StZi6JbxHMJXmGJN320
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 static1/unpack001/2f511d2b5082a059bbc56ddd78b3a2dbe221941f70b42d1e7740dbdcd4a5be12.exe family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/2f511d2b5082a059bbc56ddd78b3a2dbe221941f70b42d1e7740dbdcd4a5be12.exe
Files
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1a9fc6d523ce020286a56241c37badcf.bin.zip
Password: infected
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2f511d2b5082a059bbc56ddd78b3a2dbe221941f70b42d1e7740dbdcd4a5be12.exe.exe windows:4 windows x86 arch:x86
Password: infected
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