Behavioral task
behavioral1
Sample
Clientbuilt.exe
Resource
win7-20240729-en
General
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Target
Clientbuilt.exe
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Size
3.1MB
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MD5
76f4ad2371f015f33a5d1a6a1722957c
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SHA1
04b9a0cce30b81d34ba3cc1e5c5eeeb3bd6424e3
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SHA256
6f0b640dbd519d8aa982534a4463aa43fe557f3582bd63276a2bd91e43d2eadf
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SHA512
bb1e2f72cf5166bcfed5e514d7a7c946c159fb34602edc3bbd588b42da1a40d3523defd553c03ca81f4ee7985340071935baf1e6037b13078a9dcb54a0d54902
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SSDEEP
49152:DvnI22SsaNYfdPBldt698dBcjHfSRJ6DbR3LoGdcCTHHB72eh2NT:DvI22SsaNYfdPBldt6+dBcjHfSRJ61
Malware Config
Extracted
quasar
1.4.1
Office04
124.197.52.189:4782
ba23b2fe-45c8-40c7-9af1-0e3d55e8cff5
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encryption_key
DADCD3BA446527090CDE2CF3C12DBD5DABE4A3D5
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
DDLC Client Startup
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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 Clientbuilt.exe
Files
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Clientbuilt.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