Behavioral task
behavioral1
Sample
Client-built10.exe
Resource
win7-20240903-en
General
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Target
Client-built10.exe
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Size
3.1MB
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MD5
8b09b710cf79da2dbb54ac8548eee0ad
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SHA1
b75efaae2675e05f51337bb1380c38b692074656
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SHA256
f47017465588d49383d9bb5071956e251d4c2ab024270f97b6ba35a3e6e7dec8
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SHA512
92e08ed6248f7e25e630dcfdfadeac8ada8a402def03da2c74c1d69455a8f0262648cb3b14195ea8b7cb7e1de8e510f9fdff897017db9babb675eebd6e07feb5
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SSDEEP
49152:WvUt62XlaSFNWPjljiFa2RoUYIxC11JuAoGd/THHB72eh2NT:WvI62XlaSFNWPjljiFXRoUYIxCF
Malware Config
Extracted
quasar
1.4.1
kazeku
0.tcp.ap.ngrok.io:10431
7fb11f4b-e530-407c-a46c-8834ab5c4f45
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encryption_key
2E002E0BA1D95CECCDECD8F8B383C3F7C76A7FD7
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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
kazeku
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subdirectory
kazeku
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 Client-built10.exe
Files
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Client-built10.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