Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240729-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
2364bd709ace33ac4144257da2a03282
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SHA1
ba2272a8f9417f422ac77d84e41a55a2ad77f980
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SHA256
af896d89bd5371a4236a7993a11484ddb5890bea7da569f61519dbe963216a88
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SHA512
41cd1b224a9efb2ac3abc12a55963bbf1a7bef36d27c3ec0177cd71d72684eb725120e772500685f448ad32d940f602d5f91ba1cdab0463c154ad64029f42e23
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SSDEEP
49152:yvKt62XlaSFNWPjljiFa2RoUYIFxOEMklk/JxxoGdzTHHB72eh2NT:yvi62XlaSFNWPjljiFXRoUYIFx8L
Malware Config
Extracted
quasar
1.4.1
Office04
0.tcp.us-cal-1.ngrok.io:19421
77c9d407-6130-4e2f-8d22-c4eda6d22b1f
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encryption_key
210D68A7233E9455E4EEC5A5388A8DF203518D0F
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
1500
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startup_key
wwwwwww
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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 Client-built.exe
Files
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Client-built.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