Behavioral task
behavioral1
Sample
Bootstrapper.exe
Resource
win7-20240903-en
General
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Target
Bootstrapper.exe
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Size
3.1MB
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MD5
bc14ab48b3cc300a8a2c14b9fe6b185a
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SHA1
3fa377bf0f2cf8a5dab914eb0f224d2ca6b90c78
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SHA256
e19ec4fa8dcc4d92b63bf6e5d4b9c519032799fec8fb7d5634adf34d954f067b
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SHA512
5f34a257f7cb4511359708a243b15bedcac2d65911ecd4c168a97068c6f1aa77973bd9dffa9e496828883c067205865af159710d0d40e1d0317786fca421bf10
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SSDEEP
49152:3vCI22SsaNYfdPBldt698dBcjHqpgzMvbRwLoGdcETHHB72eh2NT:3vP22SsaNYfdPBldt6+dBcjHqpgzMs
Malware Config
Extracted
quasar
1.4.1
Rat
AMNSALKSamongus-47679.portmap.host:4782
d3bc3858-ff4a-4aa8-97ec-67721ddcdeeb
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encryption_key
C8D618C9B5D2F91FFC94B6E9C868ECF80EB774F8
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install_name
Client.exe
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log_directory
ratted client
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reconnect_delay
3000
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startup_key
hello son
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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 Bootstrapper.exe
Files
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Bootstrapper.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