Behavioral task
behavioral1
Sample
7c68eaea44f486a4781fc20063c44c266b1cd49754a2edd631e8dc880e8423ed.exe
Resource
win7-20240221-en
General
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Target
7c68eaea44f486a4781fc20063c44c266b1cd49754a2edd631e8dc880e8423ed.exe
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Size
348KB
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MD5
4bc715aebb29709c99306b61e186ff5c
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SHA1
b4ee0a1f126325dd73682bc97082f7d7dd8b277b
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SHA256
7c68eaea44f486a4781fc20063c44c266b1cd49754a2edd631e8dc880e8423ed
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SHA512
f09764c4b8fa1ae33efdd01d2379e949721365cda235ffe931eb853a2db7770ae6325d73313ade5bf894fed1f4a6714adcf8a16a33f88e7f6e76695e7aa7232d
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SSDEEP
3072:Vrrt+8Hiefcu00MKpyDcsvKyedlrEDDAlJR3mwQQ2scEThmbnrcBlAbEXKd8OaEt:VvNHXf500M2igtYx9bKKdNanqhMPp9u
Malware Config
Extracted
quasar
1.3.0.0
PROXY
reverseproxy.con-ip.com:4001
QSR_MUTEX_l1M93VuqIyiH8hEQ4I
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encryption_key
kGygUcY52e8ifTReqg0x
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
1
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startup_key
Quasar Client Startup
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subdirectory
SubDir
Signatures
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Detects Windows executables referencing non-Windows User-Agents 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
Detects executables containing common artifacts observed in infostealers 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_GENInfoStealer -
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 7c68eaea44f486a4781fc20063c44c266b1cd49754a2edd631e8dc880e8423ed.exe
Files
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7c68eaea44f486a4781fc20063c44c266b1cd49754a2edd631e8dc880e8423ed.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