Behavioral task
behavioral1
Sample
flasher.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
flasher.exe
Resource
win10v2004-20250217-en
Behavioral task
behavioral3
Sample
out.exe
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
out.exe
Resource
win10v2004-20250217-en
General
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Target
flasher.exe
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Size
1.4MB
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MD5
3845ac30b6348d3df03c46ed1e7a257a
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SHA1
0bb236a415612bc50d9a946812e3083f0c9a4943
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SHA256
58a6369e06d4f4adeebb3ea78430d7b6882c5a8e7bf0909bd38f63ad311d1149
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SHA512
51518959e2e1d19baa3482d5e29eef9023b1cd9ff661c0673b571ee93514a2d60bc73dc554d7527b2167c7b8989b16962596ee8216b73975f7093264b164a0ec
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SSDEEP
24576:Dr5ub/rrvDe7hH3rK67HCU1CkPNlm2/Ubb6I+mGAhC2Kllyv/5nJ7lj9iwGsI:DVub/rrvDehrfTCbi4NXJWA4lypFl0
Malware Config
Signatures
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Luca Stealer payload 1 IoCs
resource yara_rule static1/unpack001/out.upx family_lucastealer -
Lucastealer family
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resource yara_rule sample upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource flasher.exe unpack001/out.upx
Files
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flasher.exe.exe windows:6 windows x64 arch:x64
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Sections
UPX0 Size: - Virtual size: 1.7MB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 1.4MB - Virtual size: 1.4MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX2 Size: 2KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
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out.upx.exe windows:6 windows x64 arch:x64
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Sections
.text Size: 2.3MB - Virtual size: 2.3MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 752KB - Virtual size: 752KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 26KB - Virtual size: 29KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 57KB - Virtual size: 56KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 12KB - Virtual size: 11KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ