Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240705-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
94050f9434efcd579e1be0f1698dc4be
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SHA1
b1f9f9bb740805af70d91fd8dc16034fe6108b86
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SHA256
0fff45906cb1259652e8488ce8b7ce888a63c97332d9e3c7eb93b4c2aac1ea38
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SHA512
ed580833c456aafdd84871883f9bd2820e9c6a07e3402f69d5c632498491dba399c6e2464ef9379c944e7a4859ed634803d348d9ea24beb27d8dec47b64c09ad
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SSDEEP
49152:Pvkt62XlaSFNWPjljiFa2RoUYINdxNESEck/igLoGd065THHB72eh2NT:Pv462XlaSFNWPjljiFXRoUYI7x/+
Malware Config
Extracted
quasar
1.4.1
Office04
127.0.0.1:80
511efb52-a9ae-4985-832e-16d38c44402d
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encryption_key
049DD0CDFAFA72509A542346F4510116A4D0866B
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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
Password: rah
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