Behavioral task
behavioral1
Sample
xAvMum3X3lmL.exe
Resource
win7-20230831-en
General
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Target
xAvMum3X3lmL.exe
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Size
348KB
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MD5
4a4efb3a0ad774fa1dcf4cdae90467e7
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SHA1
beedbc28dc322a4941393d57debc716610104a31
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SHA256
770484f1254cff92bd6193b628cf851bb600ac1633d03293210a2c5c0878111f
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SHA512
7341bebb234a90d1f6d2b7f5486f3dfc445551040e0973caf47e9feea60de7ed326570ba54d77e56d5c8b0bfa7b57ad6dcf24144c667134b60b2c8f877083976
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SSDEEP
6144:a2NHXf500MbdnPqhFJ1FK+bUbbgXMIiWx1hNamJX7oC:5d50riVPUQYWxjNlJX7oC
Malware Config
Extracted
quasar
1.3.0.0
OS_VPN
rick63.publicvm.com:6750
QSR_MUTEX_J2Voi6wIDTtyaUyHAn
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encryption_key
j2LiFjJO33qTNjdgK1XZ
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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 xAvMum3X3lmL.exe
Files
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xAvMum3X3lmL.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