Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240221-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
6ed079e125e5cb44b9a356d7841b2552
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SHA1
064a8b8f919bd991cb522b64ea8961b54a06eec1
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SHA256
e3061316ff7828b9471979d0e50b64d9050c8c42de21fa4a4a2bb6d51c753a83
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SHA512
f71124e41db02717981fea66a378368d11fe9606fdc343371a92d0748f4211dcc9ba5435ca5dba4cacbd31e39f1937cf0698334284b2535169d8fc2aed0e171d
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SSDEEP
49152:KvOI22SsaNYfdPBldt698dBcjHwrxNESEsk/i2LoGd/THHB72eh2NT:Kvj22SsaNYfdPBldt6+dBcjHgxX4
Malware Config
Extracted
quasar
1.4.1
Office04
142.161.90.171:5000
a7509023-1226-4493-880a-2f99c5fd7acf
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encryption_key
42264509D6E4D45CA690ED3425881B1D02A87342
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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