Behavioral task
behavioral1
Sample
host.exe
Resource
win7-20231025-en
Behavioral task
behavioral2
Sample
host.exe
Resource
win10v2004-20231023-en
General
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Target
546db3fcd7e65363457a2fb3d10ac617.bin
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Size
165KB
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MD5
546db3fcd7e65363457a2fb3d10ac617
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SHA1
7b086f07a02eed0c5706b0e9b6824505a0414120
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SHA256
be89472c81e89ff3fe48fb7ad18489e2f6db45abfe118f6eb4eeb6f01977fcdd
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SHA512
aec2989caf11c45702060325f90a2ff246393088d2d008ce95697b8a7e876e60968c46f08006a4bde9cb6b4191c3c59227b1e24704dc93f934d0d0678a55418f
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SSDEEP
3072:MkP4EDV8Ijf4Rbq0xsa/+cM7UYrJuvfa2fGTEiLmvqOpQaQLGmPvucqPf1S+Ow:4EDVJ4xya/XMwYr4vjfwAv7pQaeXPWc+
Malware Config
Extracted
quasar
1.3.0.0
crypto new 2
youtubevideos.duckdns.org:60
QSR_MUTEX_UW2Q1R9Nhq2Wep6ciM
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encryption_key
XlkPQVgFSxZI2YKrxURt
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install_name
host.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
host
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subdirectory
System32
Signatures
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Quasar family
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Quasar payload 1 IoCs
resource yara_rule static1/unpack001/host.exe family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/host.exe
Files
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546db3fcd7e65363457a2fb3d10ac617.bin.rar
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host.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