Static task
static1
Behavioral task
behavioral1
Sample
Core_svStartup.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
Core_svStartup.exe
Resource
win10v2004-20230220-en
General
-
Target
Core_svStartup.exe
-
Size
100KB
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MD5
a5dd87caa9e93b4609e3267d09db2c0f
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SHA1
6e418bc2bdba7035d3be872ee0258ad236683e6f
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SHA256
a44824d10465e119c514fd72968762d98a665188c1736927e69c4d09bf28b463
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SHA512
e8828cc425491d00a4f3e178c52ef5b873e7c0b45851e437e3914415f3e1ba2eb6f1cf115ed86a24d52dcbe14337861d480e6f78e0714265618a37e7bd4d12ad
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SSDEEP
768:4H3njTV3svMtaWBk1pnnkWAQf75hTo/kCSvE4/QZzUCDnnuPksi3svMtaBZHn:4H3nNsUth0OI7o/0jbHEsUtkn
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Core_svStartup.exe
Files
-
Core_svStartup.exe.exe windows x86
e8f7d549d33195a57d8122764872838b
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
__vbaStrI4
__vbaVarMove
__vbaVarVargNofree
__vbaFreeVar
__vbaLenBstr
__vbaStrVarMove
__vbaFreeVarList
_adj_fdiv_m64
__vbaNextEachVar
__vbaFreeObjList
__vbaStrErrVarCopy
_adj_fprem1
__vbaRecAnsiToUni
__vbaVarTextCmpGt
ord626
__vbaResume
__vbaStrCat
ord660
__vbaSetSystemError
__vbaHresultCheckObj
ord556
__vbaLenVar
_adj_fdiv_m32
__vbaAryDestruct
__vbaExitProc
ord595
__vbaObjSet
__vbaOnError
_adj_fdiv_m16i
__vbaObjSetAddref
_adj_fdivr_m16i
__vbaBoolVar
ord520
__vbaStrTextCmp
__vbaBoolVarNull
_CIsin
ord709
__vbaChkstk
EVENT_SINK_AddRef
ord528
__vbaAryConstruct2
__vbaI2I4
ord562
DllFunctionCall
ord563
__vbaVarOr
ord670
_adj_fpatan
__vbaRecUniToAnsi
EVENT_SINK_Release
ord600
_CIsqrt
__vbaVarAnd
EVENT_SINK_QueryInterface
__vbaExceptHandler
__vbaStrToUnicode
ord606
_adj_fprem
_adj_fdivr_m64
__vbaFPException
__vbaVarCat
_CIlog
__vbaErrorOverflow
__vbaNew2
__vbaInStr
_adj_fdiv_m32i
_adj_fdivr_m32i
ord573
__vbaStrCopy
__vbaFreeStrList
_adj_fdivr_m32
_adj_fdiv_r
ord685
ord100
__vbaVarSetVar
__vbaVarCmpEq
__vbaVarDup
__vbaStrToAnsi
ord616
__vbaVarCopy
__vbaVarLateMemCallLd
ord617
_CIatan
ord618
__vbaStrMove
__vbaForEachVar
_allmul
_CItan
__vbaAryUnlock
_CIexp
__vbaI4ErrVar
__vbaFreeStr
__vbaFreeObj
Sections
.text Size: 56KB - Virtual size: 55KB
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: 36KB - Virtual size: 35KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ