Behavioral task
behavioral1
Sample
Income-Tax.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
Income-Tax.exe
Resource
win10v2004-20230703-en
General
-
Target
Income-Tax.exe
-
Size
529KB
-
MD5
8a182209d4a6fea9223298590e59bd7e
-
SHA1
909b60f35926c3173d36ce80127fb7792ef86402
-
SHA256
ec5a7e9539938fcb1c2feadf59afa9e864144e52aeb6a4715cc50f188c72c053
-
SHA512
425d15a1e9c9967514edaad9357182fe0ef5b392d072cf300bdf02e9927687adbc00c45b7345aae481e38dbbf4a4a3152756cb89e99a93f252c7cc740746ed38
-
SSDEEP
12288:TOJHqVR3f53gG46A9jmP/uhu/yMS08CkntxYR7L:68VRvWRfmP/UDMS08Ckn32
Malware Config
Extracted
kutaki
http://waaatlink.xyz/hello/son.php
Signatures
-
Kutaki family
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource Income-Tax.exe
Files
-
Income-Tax.exe.exe windows x86
935e19d59bf0c88dc1b1118bbc792235
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
__vbaVarTstGt
__vbaVarSub
__vbaStrI2
ord690
_CIcos
_adj_fptan
__vbaStrI4
__vbaHresultCheck
__vbaVarMove
__vbaVarVargNofree
__vbaAryMove
__vbaFreeVar
__vbaStrVarMove
__vbaLenBstr
__vbaLateIdCall
ord696
__vbaPut3
__vbaFreeVarList
__vbaEnd
_adj_fdiv_m64
ord698
__vbaNextEachVar
__vbaFreeObjList
ord516
__vbaVarIndexLoadRef
__vbaStrErrVarCopy
_adj_fprem1
ord518
ord626
ord519
__vbaForEachCollAd
__vbaVarCmpNe
__vbaStrCat
__vbaLsetFixstr
ord660
__vbaSetSystemError
__vbaRecDestruct
__vbaLenBstrB
__vbaHresultCheckObj
__vbaLenVar
_adj_fdiv_m32
ord666
__vbaAryVar
ord667
__vbaAryDestruct
ord591
__vbaVarIndexLoadRefLock
ord593
__vbaVarForInit
__vbaExitProc
ord594
__vbaObjSet
ord595
__vbaOnError
ord596
_adj_fdiv_m16i
__vbaObjSetAddref
_adj_fdivr_m16i
__vbaVarIndexLoad
ord598
ord305
__vbaForEachCollVar
ord520
__vbaStrFixstr
__vbaFpR8
__vbaBoolVarNull
__vbaRefVarAry
_CIsin
ord631
__vbaErase
__vbaVarCmpGt
__vbaVargVarMove
ord525
ord632
__vbaChkstk
__vbaFileClose
ord526
EVENT_SINK_AddRef
ord528
__vbaGenerateBoundsError
__vbaGet3
ord529
__vbaStrCmp
__vbaAryConstruct2
__vbaVarTstEq
__vbaPutOwner4
__vbaNextEachCollVar
__vbaObjVar
__vbaI2I4
__vbaPrintObj
DllFunctionCall
__vbaVarLateMemSt
ord563
__vbaVarOr
ord670
ord564
__vbaLbound
_adj_fpatan
__vbaR4Var
__vbaLateIdCallLd
__vbaStrR8
__vbaR8Cy
__vbaRedim
EVENT_SINK_Release
__vbaNew
ord600
ord601
__vbaUI1I2
_CIsqrt
__vbaObjIs
__vbaVarAnd
ord311
EVENT_SINK_QueryInterface
__vbaStr2Vec
__vbaUI1I4
__vbaExceptHandler
ord711
ord313
__vbaPrintFile
ord712
__vbaStrToUnicode
ord713
ord606
_adj_fprem
_adj_fdivr_m64
ord714
ord607
ord608
__vbaFPException
__vbaInStrVar
ord717
__vbaUbound
__vbaStrVarVal
__vbaGetOwner4
__vbaVarCat
__vbaI2Var
ord644
ord537
ord645
_CIlog
__vbaErrorOverflow
__vbaFileOpen
__vbaR8Str
__vbaVarLateMemCallLdRf
__vbaVar2Vec
__vbaInStr
__vbaNew2
ord570
_adj_fdiv_m32i
_adj_fdivr_m32i
__vbaVarSetObj
ord573
__vbaStrCopy
__vbaI4Str
ord681
__vbaVarCmpLt
__vbaFreeStrList
ord576
_adj_fdivr_m32
__vbaPowerR8
_adj_fdiv_r
ord685
ord100
__vbaVarTstNe
__vbaI4Var
ord689
__vbaFpCy
__vbaLateMemCall
__vbaAryLock
__vbaVarAdd
__vbaStrComp
__vbaStrToAnsi
__vbaVarDup
__vbaVarLateMemCallLd
ord616
__vbaFpI4
__vbaLateMemCallLd
ord617
_CIatan
__vbaCastObj
__vbaAryCopy
ord618
__vbaStrMove
__vbaForEachVar
ord619
__vbaR8IntI4
__vbaStrVarCopy
ord650
_allmul
__vbaLateIdSt
_CItan
__vbaNextEachCollAd
ord546
__vbaAryUnlock
__vbaUI1Var
__vbaVarForNext
_CIexp
__vbaFreeStr
__vbaFreeObj
ord581
Sections
.text Size: 256KB - Virtual size: 253KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 16KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 264KB - Virtual size: 261KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ