Behavioral task
behavioral1
Sample
d543c38fb2f5f8e687d97cff1878a2e4e4ada846c3fb3df5e43e6f189da29833.exe
Resource
win7-20240221-en
General
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Target
d543c38fb2f5f8e687d97cff1878a2e4e4ada846c3fb3df5e43e6f189da29833
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Size
3.1MB
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MD5
3396e77d0d043554c7f857a1249c75fe
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SHA1
d3de2678e85f4ad63e5254782a58a85035aafecc
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SHA256
d543c38fb2f5f8e687d97cff1878a2e4e4ada846c3fb3df5e43e6f189da29833
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SHA512
3128c03a0465d03127cf6df186533993e2337dce8ca821d8dbcaecd08c7ff7a6d2646de150b7afbe20641e4eb08104342813dfd2fe50346c8b47d40deedc67a4
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SSDEEP
49152:WvnG42pda6D+/PjlLOlg6yQipV7tjMpETOk/FLoGd7RTHHB72eh2NT:WvG42pda6D+/PjlLOlZyQipVhj9
Malware Config
Extracted
quasar
1.4.1
Office04
10.10.8.36:4782
0.tcp.eu.ngrok.io:19992
tcp://5.tcp.eu.ngrok.io:10477
570f8f63-dc8c-471b-b7f5-710ac819d722
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encryption_key
BB0B2DE4F1126E98797D1ABADF2CCEC47E72B5FD
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
150
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startup_key
Platonus
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subdirectory
SubDir
Signatures
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Detects Windows executables referencing non-Windows User-Agents 1 IoCs
Processes:
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
Processes:
resource yara_rule sample INDICATOR_SUSPICIOUS_Binary_References_Browsers -
Detects executables containing common artifacts observed in infostealers 1 IoCs
Processes:
resource yara_rule sample INDICATOR_SUSPICIOUS_GENInfoStealer -
Quasar family
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Quasar payload 1 IoCs
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource d543c38fb2f5f8e687d97cff1878a2e4e4ada846c3fb3df5e43e6f189da29833
Files
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d543c38fb2f5f8e687d97cff1878a2e4e4ada846c3fb3df5e43e6f189da29833.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: 3.1MB - Virtual size: 3.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 3KB - 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