Behavioral task
behavioral1
Sample
xBqAmJwby407.exe
Resource
win7-20230831-en
General
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Target
xBqAmJwby407.exe
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Size
348KB
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MD5
578656857a68dc5dbb566cbf23865afa
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SHA1
1b1fb4d7deb1fc89a4903b655ac5a7c496ef2638
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SHA256
d8fadff5429d00e94828f23f7549ceacfce82d0d59947b2b77b45937ad2db363
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SHA512
63e7e66d865e60510fba8b61c3775a9e218921760a85d244940026b3315221196b88d3229529f00d907bd6e74479d9960a8d4e077a4965b5f6c2604e7268061b
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SSDEEP
6144:K2NHXf500M0nNcxsTeka6qb/ZOfCbusWrLhmjr3O:pd50ENcxsJiZDUrLhmjjO
Malware Config
Extracted
quasar
1.3.0.0
OS_VPN
crazydns.linkpc.net:3000
QSR_MUTEX_J2Voi6wIDTtyaUyHAn
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encryption_key
jNLefTNbVuTwEDcSyKGn
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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
Quasar Client Startup
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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 xBqAmJwby407.exe
Files
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xBqAmJwby407.exe.exe windows:4 windows 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: 344KB - Virtual size: 344KB
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