Behavioral task
behavioral1
Sample
Client.exe
Resource
win7-20241010-en
General
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Target
Client.rar
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Size
165KB
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MD5
3519ea7581b844397543278903f0730b
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SHA1
13572d061cbe7e29f58ec1b19a93c48452733681
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SHA256
88a577b83b5cd63171a294b062b6b0c095a8275a2484f2181cd81538992dc903
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SHA512
17f27bfc53c84b6628ce4cfec3d594348d1d9698c6c9acf3971266c1ad58730e9552074c59318a2aae9acb969983d4f082cb0117fc8401f7c463e552c33b59e7
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SSDEEP
3072:1Xj4628L/6TGO4E6vz16x74ETeBwyeoifqTgaYKW4Jl4jE+cX:1XnTL/gGO4EopQ0ET0wDoiCTqKW/Q+i
Malware Config
Extracted
quasar
1.3.0.0
Office04
51.79.176.188:4782
QSR_MUTEX_VpymbOpr3PCDDO1MrF
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encryption_key
UHc26cHDYhemjvStOeoP
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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
Processes:
resource yara_rule static1/unpack001/Client.exe family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource unpack001/Client.exe
Files
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Client.rar.rar
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Client.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: 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