Behavioral task
behavioral1
Sample
obfus2.exe
Resource
win10v2004-20250410-en
General
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Target
obfus2.exe
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Size
1.5MB
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MD5
fd490afa1de4699862b5950ea751af37
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SHA1
72c8f24b54e8fb12ade27dc0dc483f5c96b16f7c
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SHA256
c10b9a9c1202b0f18670a8599b5aa6852dddf40b12b7cf5a3787acd813d8a23c
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SHA512
0839bd2cb8653c0fe67154dc1a1b2976f99cbe5d9a1e71236d66f4290ec323f32b03120191aa18d5db5d623cb0320978929887a18523c82e210aba0fbb144a08
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SSDEEP
24576:G42/US2eWBRwRR16zhHIPbcNK0KKm77yviUSQaZaOwI55l2S62r9zC5u6a1DFI:GZ/u7wR2EgKKm77LrwCB6Pw
Malware Config
Extracted
quasar
��:a>�后��s��6�F�l濺�,@ 3&�
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encryption_key
0A2600918F5E13281DD3F3E3CF35CA2FEACB6884
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reconnect_delay
3000
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startup_key
�� D���s�+���\� r8t$�
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 obfus2.exe
Files
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obfus2.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
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_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 1.5MB - Virtual size: 1.5MB
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