Behavioral task
behavioral1
Sample
Rat.exe
Resource
win10-20240404-en
Behavioral task
behavioral2
Sample
Rat.exe
Resource
win10v2004-20240508-en
General
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Target
Rat.exe
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Size
3.1MB
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MD5
9fb2e5556886a91ed7805b9d835defd2
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SHA1
4b54c11066f327c76f09b8de64715fee3f02fd34
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SHA256
28174e01123c6a52e6d47655dfa108384a81d0cccdbd94843689ba08be928453
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SHA512
e9dd5e7b7c0ff5406ca23c17bf6451c717391b0f8fc5ff54809ed552b41a1e7d71bbd6128cbf570976b2a48299cc72625d6d485960256009df33a6d80810ba54
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SSDEEP
49152:OvIt62XlaSFNWPjljiFa2RoUYInIxNESE8k/iRLoGdRTHHB72eh2NT:OvE62XlaSFNWPjljiFXRoUYIIxDh
Malware Config
Extracted
quasar
1.4.1
1
192.168.178.159:4782
f9476288-ca6f-4357-825f-b24fff8428a1
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encryption_key
5B16BA8922577B4F360F28D3FADAD0E8E87825EE
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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
x64
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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 Rat.exe
Files
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Rat.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