Behavioral task
behavioral1
Sample
e2cc914a1df535f2cf88007a518a9990afe5ccdb9cf1262e550e2ce8cc9c7eb0.exe
Resource
win7-20240220-en
General
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Target
e2cc914a1df535f2cf88007a518a9990afe5ccdb9cf1262e550e2ce8cc9c7eb0.exe
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Size
916KB
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MD5
6784aa946d316985ed1b8698ad2b9831
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SHA1
7a292430ad4c64a575ada8900d99e8fbe33f5785
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SHA256
e2cc914a1df535f2cf88007a518a9990afe5ccdb9cf1262e550e2ce8cc9c7eb0
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SHA512
53ed9d033600d7cd0d60dedecad4d7fdae2f202982fb9ea6084cd7e2602df3b285bdc688b9acdd52f6bd6114e77945748bb4d73883063f79d8db92031a70fd48
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SSDEEP
24576:tmkdueXjq0OQKc2YSEegpQRDLusJLK1lk2oLP:IkdueXjq0OQKc2YSEegpshk1lk
Malware Config
Extracted
quasar
2.8.0.1
Hotels
45.40.96.164:5552
4zqoNUTZKMvnLHkoUD
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encryption_key
DrELkLp18Pk08e6KWRUc
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install_name
Registry.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Hotels Client Startup
Signatures
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Detects Windows exceutables bypassing UAC using CMSTP utility, command line and INF 1 IoCs
Processes:
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCMD -
Detects Windows executables referencing non-Windows User-Agents 1 IoCs
Processes:
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
Detects executables containing URLs to raw contents of a Github gist 1 IoCs
Processes:
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_RawGitHub_URL -
Detects executables embedding command execution via IExecuteCommand COM object 1 IoCs
Processes:
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_RegKeyComb_IExecuteCommandCOM -
Detects executables embedding registry key / value combination indicative of disabling Windows Defender features 1 IoCs
Processes:
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender -
Detects file containing reversed ASEP Autorun registry keys 1 IoCs
Processes:
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse -
Quasar family
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Quasar payload 1 IoCs
Processes:
resource yara_rule sample family_quasar -
detects Windows exceutables potentially bypassing UAC using eventvwr.exe 1 IoCs
Processes:
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource e2cc914a1df535f2cf88007a518a9990afe5ccdb9cf1262e550e2ce8cc9c7eb0.exe
Files
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e2cc914a1df535f2cf88007a518a9990afe5ccdb9cf1262e550e2ce8cc9c7eb0.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
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: 912KB - Virtual size: 912KB
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