Static task
static1
Behavioral task
behavioral1
Sample
Nigthmare CrypteR by sky-life/NIGHTMARE CRYPTER.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
Nigthmare CrypteR by sky-life/NIGHTMARE CRYPTER.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
Nigthmare CrypteR by sky-life/stub.exe
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
Nigthmare CrypteR by sky-life/stub.exe
Resource
win10v2004-20231215-en
General
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Target
0c5f4be8c314004251d205292334a3b0
-
Size
109KB
-
MD5
0c5f4be8c314004251d205292334a3b0
-
SHA1
23480024d18f31c7e60060c67da8673c995f80f6
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SHA256
7f46064eaeea1c68fa00d3e038cc0d65665088e8e2464e8895f4f02c6fb66526
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SHA512
7c05f3e05c0268af82feb11faf17f8fffb57347f50d8d74ad621ef8ff2232cf86300ed2d1ac255b9a8cd172b00db0a3cf90c765ceeed39f11b2289d005421691
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SSDEEP
1536:hmO9bWeKG/W3RZ18R64DgX0UN3IUsUbHserG3aRZ/yWkZXazeq95Xr9+pb+OlZ90:9wHAdDgkUN3mUrC6Z5kZqCM5wpB/DotD
Malware Config
Signatures
-
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/Nigthmare CrypteR by sky-life/NIGHTMARE CRYPTER.exe unpack001/Nigthmare CrypteR by sky-life/stub.exe
Files
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0c5f4be8c314004251d205292334a3b0.zip
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Nigthmare CrypteR by sky-life/NIGHTMARE CRYPTER.exe.exe windows:4 windows x86 arch:x86
56e5044b4593e00e6ff6c21b9f008234
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
Imports
msvbvm60
_CIcos
_adj_fptan
__vbaVarVargNofree
__vbaAryMove
__vbaFreeVar
__vbaLenBstr
__vbaStrVarMove
__vbaLateIdCall
__vbaFreeVarList
__vbaPut3
_adj_fdiv_m64
__vbaRaiseEvent
__vbaFreeObjList
_adj_fprem1
__vbaStrCat
__vbaSetSystemError
__vbaHresultCheckObj
_adj_fdiv_m32
__vbaAryDestruct
__vbaExitProc
ord593
ord594
__vbaOnError
__vbaObjSet
ord595
_adj_fdiv_m16i
__vbaObjSetAddref
_adj_fdivr_m16i
_CIsin
ord632
__vbaChkstk
ord526
__vbaFileClose
EVENT_SINK_AddRef
__vbaGenerateBoundsError
ord529
__vbaStrCmp
__vbaGet3
__vbaAryConstruct2
__vbaI2I4
DllFunctionCall
_adj_fpatan
__vbaLateIdCallLd
EVENT_SINK_Release
__vbaUI1I2
_CIsqrt
EVENT_SINK_QueryInterface
__vbaExceptHandler
ord713
_adj_fprem
_adj_fdivr_m64
ord608
__vbaFPException
ord717
__vbaUbound
__vbaVarCat
ord535
__vbaI2Var
ord645
_CIlog
__vbaErrorOverflow
__vbaFileOpen
__vbaVar2Vec
ord648
__vbaInStr
ord570
__vbaNew2
_adj_fdiv_m32i
_adj_fdivr_m32i
__vbaStrCopy
__vbaFreeStrList
_adj_fdivr_m32
_adj_fdiv_r
ord100
__vbaVarDup
__vbaFpI4
_CIatan
__vbaStrMove
__vbaR8IntI4
_allmul
__vbaLateIdSt
_CItan
_CIexp
__vbaFreeStr
__vbaFreeObj
Sections
.text Size: 108KB - Virtual size: 104KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 4KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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Nigthmare CrypteR by sky-life/stub.exe.exe windows:4 windows x86 arch:x86
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
Sections
aassssas Size: 33KB - Virtual size: 36KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
sddsddda Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
ssaaaaaa Size: 12KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
asdasdad Size: 9.0MB - Virtual size: 4KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.newimp Size: - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE