Behavioral task
behavioral1
Sample
sigma.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
sigma.exe
Resource
win10v2004-20240226-en
General
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Target
sigma.exe
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Size
3.1MB
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MD5
47d5a2ed075196edd1624a56d5b5de08
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SHA1
a2bb6eb7bfaf11d3eae307799e13ef95f1fb42f6
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SHA256
b40af08efaaecc744d17d5ca4b33014a3565d5821ffd914e6499ad7a4a3ea2ec
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SHA512
c74eee4768c16551afcf9a51449300fe46e35c8f1e9554dceabbe2f175e4dcdd58b5ae9c52f06b89fe650b76f8074688a0cb174f6739be234c2a71856c15267f
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SSDEEP
49152:nvKz92YpaQI6oPZlhP3ReybewoSLRJ6wbR3LoGdOV1rTHHB72eh2NT:nv492YpaQI6oPZlhP3YybewoSLRJ6K
Malware Config
Extracted
quasar
1.4.1
GorillaTag
uk2.localto.net:44627
192.168.1.54:443
192.168.1.54:80
82.47.98.176:443
82.47.98.176:80
977bd88f-39aa-40dd-8f86-5efa23a69870
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encryption_key
180E3B1AB37E6D3AF03B7ABA53FCFBD1DD16F88D
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install_name
svchost.exe
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log_directory
Steam Error Logs
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reconnect_delay
3000
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startup_key
svchost
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subdirectory
SubDir
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 sigma.exe
Files
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sigma.exe.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