Behavioral task
behavioral1
Sample
dwdwdw.exe
Resource
win7-20240705-en
General
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Target
dwdwdw.exe
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Size
3.1MB
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MD5
1d2c7fbba453dd1cf4de79a6716daf93
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SHA1
0257ce3de31e6bd8084e5b7f101438d1fe2c7730
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SHA256
9fca56ce9e20354eae217b70b07955ebb8d44ea28f3a090c696e330c22cfb4da
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SHA512
a68ad1c392a287a7993221c3a8e0f81eda02cbd22b2584f106276e92789738ac64190c8a01ee26ca577f4351af8f09d8fe2387ca5891f5d930e998fe275601c7
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SSDEEP
49152:3vJlL26AaNeWgPhlmVqvMQ7XSK9/2xDRmhcorpszoGdiiTHHB72eh2NT:3vnL26AaNeWgPhlmVqkQ7XSK99Pey
Malware Config
Extracted
quasar
1.4.1
Office04
147.185.221.18:42996
147.185.221.18:1770
aef6df25-e90d-4712-99d2-9ec0dbe8e337
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encryption_key
8BD05243304A2E80E6CB2DD2A023CA800A308299
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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 dwdwdw.exe
Files
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dwdwdw.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