Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240221-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
edd373e0c5b33b63857417fe30229b22
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SHA1
fd1834882a6c411b97a51f2e1ddb57058465fdc3
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SHA256
9b906e8b6e09cdb3ad9d100dcb77df6f30e0a88c1fb164ea491a9e6fdd823083
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SHA512
80ffb0dfe71ca3bc6e7b414d2ba8924a99e481e36aadbc9a176571d121556637fa50621509886030959dd48e6419d0fe4f3c20ce56a304912c5259d8fd0dd9d5
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SSDEEP
49152:+vSI22SsaNYfdPBldt698dBcjHdExk1v4LoG+8GQ0THHB72eh2NT:+v/22SsaNYfdPBldt6+dBcjHdExnG
Malware Config
Extracted
quasar
1.4.1
Office04
10.0.0.5:55976
127.0.0.1:12995
fd7766f9-01b8-4f7d-9510-71226643b102
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encryption_key
1A0BB6F7E6C51A39D122080A266E59E4C6D10FA8
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install_name
Centixwareinstaller.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Windows 11 Dir
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 1 IoCs
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
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: 7KB - Virtual size: 6KB
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