Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240708-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
ada5a9cddc59be72633eba26835e7a3e
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SHA1
de422e113b92b1d9c6baf46b159e387c5ec5517a
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SHA256
2dbd31f6ed2f964d191b7077c2acecc931648cc2f1a2a43f57b0cbb35d1b72c7
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SHA512
c5fa3e3dd1946995c85fda7fe520b5eb34ef575e0b59fea2e01e51237fe3805a29f9d0eab2701aef9368d68e3d04a70e6f5a985d5d52d9cc1d3bcfe887b1763a
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SSDEEP
49152:bvbI22SsaNYfdPBldt698dBcjHm0xNESEck/iWLoGdZTHHB72eh2NT:bvk22SsaNYfdPBldt6+dBcjHNxjY
Malware Config
Extracted
quasar
1.4.1
Office04
195.88.218.76:4782
4b117633-2647-473d-81f9-9d4abde111bc
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encryption_key
E86E3B923722E3F8294BD35A968E5EA213AFA362
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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
Quasar Client Startup
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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: 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