General
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Target
Client-built.exe
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Size
3.1MB
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MD5
0bf268a8b78934d24665b8c7f85ad502
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SHA1
d2f86457bf0d53ad7a204cb0321c24645e93093e
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SHA256
bf151737d802ddd9bfc83e18437940ce7616be94d4df6b5ed64a673e2397a56b
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SHA512
b9764b14dbb9e958a5069b51ca9ac4d287730c63feea5f5b9dd6461347649d37eca1e249e56b991d925eee67463b75830131345f8feb8dc4f6fa29065e4b78a0
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SSDEEP
49152:DvbI22SsaNYfdPBldt698dBcjHA4xNESEfk/ibLoGd5JTHHB72eh2NT:Dvk22SsaNYfdPBldt6+dBcjHHxWn
Malware Config
Extracted
quasar
1.4.1
Office04
6.tcp.eu.ngrok.io:4444
68add406-97f6-4492-98fd-6030486d691a
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encryption_key
C5ED9C9E70DA18B4BAA19E589637DA9F0B9E484C
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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
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
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