General
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Target
Client-built.exe
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Size
3.1MB
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MD5
853efe8c5829952a49ee7a1d1d1a31f0
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SHA1
461629b70ffcd441e07457e916a2f2a2dc95971a
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SHA256
ee504c45708c9b736c625c19b8322381eb172eb55604196fda42f6e6f380aaf9
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SHA512
05fd7ef451e315532f263b54b51e48c643b7eff7d5f405df84e9881beac7eff2d21b34f187599b8e042dd3e2f59947863cc16ec47ffc6cce2ecb25a408f1a63e
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SSDEEP
49152:PvyI22SsaNYfdPBldt698dBcjHxd7UoGdGTHHB72eh2NT:Pvf22SsaNYfdPBldt6+dBcjHxdw
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.0.111:4782
18305b7b-a551-46f5-a5d8-64c569cc9b4f
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encryption_key
68D694BB4C15238633D5D8ADB3EF746A2F0D60E6
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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