Behavioral task
behavioral1
Sample
43e4e9bffa44ca9ab7c93b2c156ca3594ac4dbe8505bec14dcc4a3bf91507a3f.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
43e4e9bffa44ca9ab7c93b2c156ca3594ac4dbe8505bec14dcc4a3bf91507a3f.exe
Resource
win10v2004-20231222-en
General
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Target
43e4e9bffa44ca9ab7c93b2c156ca3594ac4dbe8505bec14dcc4a3bf91507a3f.exe.compressed
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Size
442KB
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MD5
b4f57febdf14845cfb4f31bac080508b
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SHA1
fd2848cc6c98cd8479b7b9afeada66176f058f0f
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SHA256
7ee78e9f306f4d9cb09e55b8df2854fd46ba30f71642ea361d9ea8a5bf72ae9e
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SHA512
e509ad9cf3882a375cb5f588d3e6d5914cee04a6a61d62aecb1c4d29d112312313c2b64216c63f623e780b3fa8907035e7af0d8c2055c19b136de917a1eb0430
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SSDEEP
3072:HFHCuFdjX3nEnZjLo3ChirBtRix4wBblxgNuhPXHrJTkzlLH0vxZffBrCzXiIlyD:liMjX3En9o3Chide4wlP5HrJTXf
Malware Config
Signatures
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Detects command variations typically used by ransomware 1 IoCs
resource yara_rule static1/unpack001/out.upx INDICATOR_SUSPICIOUS_GENRansomware -
Detects executables containing anti-forensic artifacts of deleting USN change journal. Observed in ransomware 1 IoCs
resource yara_rule static1/unpack001/out.upx INDICATOR_SUSPICIOUS_USNDeleteJournal -
Detects executables containing commands for clearing Windows Event Logs 1 IoCs
resource yara_rule static1/unpack001/out.upx INDICATOR_SUSPICIOUS_ClearWinLogs -
Detects executables containing many references to VEEAM. Observed in ransomware 1 IoCs
resource yara_rule static1/unpack001/out.upx INDICATOR_SUSPICOUS_EXE_References_VEEAM -
Detects executables embedding registry key / value combination indicative of disabling Windows Defender features 1 IoCs
resource yara_rule static1/unpack001/out.upx INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender -
UPX dump on OEP (original entry point) 1 IoCs
resource yara_rule sample UPX -
resource yara_rule sample upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource 43e4e9bffa44ca9ab7c93b2c156ca3594ac4dbe8505bec14dcc4a3bf91507a3f.exe.compressed unpack001/out.upx
Files
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43e4e9bffa44ca9ab7c93b2c156ca3594ac4dbe8505bec14dcc4a3bf91507a3f.exe.compressed.exe windows:5 windows x86 arch:x86
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Sections
UPX0 Size: - Virtual size: 592KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 188KB - Virtual size: 188KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 253KB - Virtual size: 256KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
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out.upx.exe windows:5 windows x86 arch:x86
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Sections
.text Size: 232KB - Virtual size: 231KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 117KB - Virtual size: 116KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 85KB - Virtual size: 132KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.gfids Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 253KB - Virtual size: 252KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 15KB - Virtual size: 15KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ