Behavioral task
behavioral1
Sample
valo/128034b59b7011ed13035550b6a88562.pdb
Resource
win10ltsc2021-20250207-en
Behavioral task
behavioral2
Sample
valo/LUA.exe
Resource
win10ltsc2021-20250207-en
Behavioral task
behavioral3
Sample
valo/LUA.pdb
Resource
win10ltsc2021-20250207-en
Behavioral task
behavioral4
Sample
valo/Mapper.exe
Resource
win10ltsc2021-20250207-en
Behavioral task
behavioral5
Sample
valo/Oykyo.sys
Resource
win10ltsc2021-20250207-en
General
-
Target
valo.7z
-
Size
4.6MB
-
MD5
318ab2045734f37a897211141e0d6366
-
SHA1
5a22c155d558b4757270499ab683994416994fa8
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SHA256
6b9db92b56ba90f8ae4a00e0980a384eb3cbe5acf88405f0cb5758ddb2fc60e3
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SHA512
82a4a6a20bf95b37253506cd9be384030690b44b549f443e612f84144c74f5bee83032e58f32eaa5726e8275c1203a7c55873f57b624e3f0247c96e7868a55f9
-
SSDEEP
98304:U0uggDYIXwGP8IEI5tQHxwWLkE+GZx2FjE+HdZ7:UgShP8I5teHr+GZx2JV7
Malware Config
Signatures
-
Detect Neshta payload 2 IoCs
resource yara_rule static1/unpack001/valo/LUA.exe family_neshta static1/unpack001/valo/Mapper.exe family_neshta -
Neshta family
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Unsigned PE 3 IoCs
Checks for missing Authenticode signature.
resource unpack001/valo/LUA.exe unpack001/valo/Mapper.exe unpack001/valo/Oykyo.sys
Files
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valo.7z.7z
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valo/128034b59b7011ed13035550b6a88562.pdb
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valo/LUA.exe.exe windows:4 windows x86 arch:x86
Headers
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI
Sections
CODE Size: 29KB - Virtual size: 28KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
DATA Size: 1024B - Virtual size: 536B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
BSS Size: - Virtual size: 42KB
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 2KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: - Virtual size: 8B
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 512B - Virtual size: 24B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 5KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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valo/LUA.pdb
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valo/Mapper.exe.exe windows:4 windows x86 arch:x86
Headers
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI
Sections
CODE Size: 29KB - Virtual size: 28KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
DATA Size: 1024B - Virtual size: 536B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
BSS Size: - Virtual size: 42KB
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 2KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: - Virtual size: 8B
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 512B - Virtual size: 24B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 5KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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valo/Oykyo.sys.sys windows:10 windows x64 arch:x64
d5e90601da448613a1aa254ac5f0ae08
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
ntoskrnl.exe
RtlInitAnsiString
RtlInitUnicodeString
MmGetSystemRoutineAddress
RtlAnsiStringToUnicodeString
KeLowerIrql
KfRaiseIrql
ExAllocatePool
ExFreePoolWithTag
MmProbeAndLockPages
MmUnlockPages
MmProtectMdlSystemAddress
MmMapLockedPagesSpecifyCache
MmUnmapLockedPages
IoAllocateMdl
IofCompleteRequest
IoCreateDevice
IoCreateSymbolicLink
IoFreeMdl
IoGetCurrentProcess
ObfDereferenceObject
MmCopyMemory
PsLookupProcessByProcessId
PsGetProcessSectionBaseAddress
MmCopyVirtualMemory
ObReferenceObjectByName
IoCreateDriver
Sections
.text Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 1024B - Virtual size: 844B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 512B - Virtual size: 176B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 512B - Virtual size: 120B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
INIT Size: 1024B - Virtual size: 844B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.n.? Size: 1.0MB - Virtual size: 1.0MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 168B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ