Behavioral task
behavioral1
Sample
8161b2185f9e0b885229e16b7131c070N.exe
Resource
win7-20240708-en
General
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Target
8161b2185f9e0b885229e16b7131c070N.exe
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Size
3.1MB
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MD5
8161b2185f9e0b885229e16b7131c070
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SHA1
b43f371432ecd4695f134d4919b4056abe70fea4
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SHA256
a83cfef23769e96a44fbe964ce50b5cf852a52e2f56e6980792f63804ebab2fc
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SHA512
7223532ecb47a5147f25ebfebebec4e39582690c70c2150882df1d3c9f79932631c312b6e8bc24fbc1adf15e174c3927b2c1e97149ca0e1addef9835ce46d14b
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SSDEEP
49152:ZvDhBYjCOuDt2d5aKCuVPzlEmVQL0wvwkaJayTLBov0IMoGEyTHHB72eh2NTi+:Zv5t2d5aKCuVPzlEmVQ0wvwfJzBfp+
Malware Config
Extracted
quasar
1.4.1
client
192.168.1.2:8080
79bb3370-49b9-441f-8e01-87bde9a88005
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encryption_key
388304F58FC7089824EE2A387161F0BAEE090BBD
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install_name
Microsoft Update Health Tools.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Microsoft Update Health Tools
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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 8161b2185f9e0b885229e16b7131c070N.exe
Files
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8161b2185f9e0b885229e16b7131c070N.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: 32KB - Virtual size: 31KB
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