General
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Target
Client-built.exe
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Size
3.1MB
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MD5
22100cc98b67f5dcb53996c6e159307e
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SHA1
c52c5993155d25849412f7e0aad949982b79e184
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SHA256
8d2791e3b86cbe959a01b8394dc1b1a469e8bc2263088f0ebd14db7b123a3fa8
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SHA512
e177d46a50715a15a569cacced329e1076363a93ba0a60e816e0faef0d71745df5a8185409f536d773dfcae664bcccd3e883cb7959c3e0e0b5a18085ab5b29e0
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SSDEEP
49152:3vDI22SsaNYfdPBldt698dBcjHueA3har7QoGd29JTHHB72eh2NT:3v822SsaNYfdPBldt6+dBcjHg3h
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.2.106:4782
fe4290a2-c368-468a-8c1f-b36f1774e2d7
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encryption_key
6FC043E55EFEB9F593029AF4D1E1023ED290CDEE
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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