Behavioral task
behavioral1
Sample
61f96bed11f1f4369640c1e8d527d410_NEAS.exe
Resource
win7-20240221-en
General
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Target
61f96bed11f1f4369640c1e8d527d410_NEAS
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Size
492KB
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MD5
61f96bed11f1f4369640c1e8d527d410
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SHA1
7a7b601bad06d344a0e1cb52b336203ed9b6709f
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SHA256
b737af7a4960cb85736182b61bd53eaf5f19d5f0387cbb83f65ad20f946d517a
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SHA512
114c362e6d7e5fd89d1d48b68586845d395e58fe5dd159296a6f9353d853c16878312cd89d723eaf30f49c83dc28d31882b3c6aca082a18e5a4b0a289f3c6617
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SSDEEP
12288:8AxKUfp0M5AstNgeiDU8CZpDofHNw/pBf:8MHp0M6cg3DU8C7DWNGV
Malware Config
Extracted
quasar
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reconnect_delay
5000
Signatures
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Contains code to disable Windows Defender 1 IoCs
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
resource yara_rule sample disable_win_def -
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 61f96bed11f1f4369640c1e8d527d410_NEAS
Files
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61f96bed11f1f4369640c1e8d527d410_NEAS.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: 489KB - Virtual size: 488KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 2KB - 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