Behavioral task
behavioral1
Sample
a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3.exe
Resource
win7-20240215-en
General
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Target
a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3.exe
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Size
348KB
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MD5
32f3cadcabd40f0b821adba034ac8fb1
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SHA1
75ec24a7b088756120b9c380c6a13d88dbab5bd6
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SHA256
a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3
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SHA512
a59aae78bf7729881925fdea3f0c2370a26f3bc3ea665df3eca1278c3599d37369aaf1e5c3bc5dcf08acb02a80ba1e1f4883b855ce934908a95d1d3d4c448c40
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SSDEEP
6144:TzNHXf500Mb31d61sQqboCixEkZeg5kEvfmG:Hd50vd0IixDp1vfmG
Malware Config
Extracted
quasar
1.3.0.0
Office04
ppprosyl.con-ip.com:4001
QSR_MUTEX_l1M93VuqIyiH8hEQ4I
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encryption_key
ucnCWAxHFqrqDWqAvywj
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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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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 a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3.exe
Files
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a681774e83e773eff9e6c4070a78b7fdb2839301ce1955cade51bd95af25abd3.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