Behavioral task
behavioral1
Sample
Challan.exe
Resource
win7-20240221-en
General
-
Target
Challan.exe
-
Size
573KB
-
MD5
111d37dd39bb7f73b76eb13e22a16178
-
SHA1
c358557e24b87ae758606d707763bfa95da88a61
-
SHA256
6492086998bb2a858614dc2310e2349d5a282eadc5a08376c1111dca7d765c7f
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SHA512
31b0424ce110261af02c23c94a60659301ba6eacc4223578b04fe1fc815f4eb41f7d899f6322e642a6df62e88580a4d70131a01500ebe12b9ffa46d9e7232bf4
-
SSDEEP
12288:Ua4NFT8ElW46A9jmP/uhu/yMS08CkntxYRtqL:J6YahfmP/UDMS08Ckn3v
Malware Config
Extracted
kutaki
http://linkwotowoto.club/new/two.php
Signatures
-
Kutaki Executable 1 IoCs
resource yara_rule sample family_kutaki -
Kutaki family
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Challan.exe
Files
-
Challan.exe.exe windows:4 windows x86 arch:x86
fa0ec3db9d471632812c3a6537db4471
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
__vbaVarSub
__vbaVarTstGt
ord690
__vbaStrI2
_CIcos
_adj_fptan
__vbaHresultCheck
__vbaStrI4
__vbaVarMove
__vbaVarVargNofree
__vbaAryMove
__vbaFreeVar
__vbaLateIdCall
__vbaStrVarMove
__vbaLenBstr
ord696
__vbaPut3
__vbaEnd
__vbaFreeVarList
_adj_fdiv_m64
ord698
__vbaNextEachVar
__vbaFreeObjList
ord516
__vbaVarIndexLoadRef
__vbaStrErrVarCopy
_adj_fprem1
ord518
ord519
ord626
__vbaResume
__vbaVarCmpNe
__vbaForEachCollAd
__vbaStrCat
__vbaSetSystemError
__vbaLenBstrB
__vbaHresultCheckObj
__vbaLenVar
_adj_fdiv_m32
ord666
__vbaAryVar
ord667
__vbaAryDestruct
ord591
__vbaVarIndexLoadRefLock
ord593
__vbaVarForInit
__vbaForEachCollObj
__vbaExitProc
ord594
__vbaStrLike
__vbaObjSet
__vbaOnError
ord595
ord596
_adj_fdiv_m16i
__vbaObjSetAddref
_adj_fdivr_m16i
__vbaVarIndexLoad
ord598
ord599
ord520
__vbaRefVarAry
__vbaFpR8
__vbaBoolVarNull
_CIsin
ord631
__vbaErase
__vbaVargVarMove
ord525
__vbaVarCmpGt
ord632
__vbaNextEachCollObj
__vbaChkstk
__vbaFileClose
ord526
EVENT_SINK_AddRef
ord528
__vbaGenerateBoundsError
__vbaGet3
ord529
__vbaStrCmp
__vbaAryConstruct2
__vbaVarTstEq
__vbaPutOwner4
__vbaObjVar
__vbaI2I4
DllFunctionCall
ord563
ord670
__vbaVarOr
ord564
__vbaLbound
_adj_fpatan
__vbaLateIdCallLd
__vbaR8Cy
__vbaRedim
__vbaStrR8
EVENT_SINK_Release
__vbaNew
ord600
ord601
__vbaUI1I2
_CIsqrt
__vbaObjIs
__vbaVarAnd
__vbaLateIdCallSt
EVENT_SINK_QueryInterface
__vbaStr2Vec
__vbaUI1I4
__vbaExceptHandler
ord711
ord712
__vbaStrToUnicode
__vbaPrintFile
ord713
_adj_fprem
_adj_fdivr_m64
ord714
ord607
ord608
__vbaFPException
ord717
__vbaInStrVar
__vbaStrVarVal
__vbaUbound
__vbaVarCat
__vbaCheckType
__vbaI2Var
ord644
ord537
ord645
_CIlog
__vbaErrorOverflow
__vbaFileOpen
ord648
__vbaVar2Vec
__vbaInStr
__vbaR8Str
ord570
__vbaVarLateMemCallLdRf
__vbaNew2
_adj_fdiv_m32i
_adj_fdivr_m32i
__vbaVarSetObj
ord573
__vbaStrCopy
__vbaI4Str
ord681
__vbaVarCmpLt
__vbaFreeStrList
ord576
__vbaDerefAry1
_adj_fdivr_m32
__vbaPowerR8
_adj_fdiv_r
ord685
ord100
__vbaVarTstNe
__vbaI4Var
ord689
__vbaVarCmpEq
__vbaFpCy
__vbaVarAdd
__vbaAryLock
__vbaLateMemCall
__vbaStrComp
__vbaStrToAnsi
__vbaVarDup
__vbaFreeVarg
__vbaFpI4
ord616
__vbaVarCopy
__vbaVarLateMemCallLd
ord617
__vbaLateMemCallLd
_CIatan
ord618
__vbaAryCopy
__vbaStrMove
__vbaCastObj
__vbaForEachVar
ord619
__vbaR8IntI4
__vbaStrVarCopy
ord650
_allmul
__vbaLateIdSt
_CItan
__vbaNextEachCollAd
__vbaUI1Var
__vbaAryUnlock
__vbaVarForNext
_CIexp
__vbaFreeObj
__vbaFreeStr
ord581
Sections
.text Size: 300KB - Virtual size: 299KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 18KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 264KB - Virtual size: 260KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ