Behavioral task
behavioral1
Sample
TSD.exe
Resource
win7-20230220-en
General
-
Target
TSD.zip
-
Size
394KB
-
MD5
633732566fb46888cd2430ccf3517c1d
-
SHA1
1f8703997f4a2db457bbfe022e678f222ec86704
-
SHA256
20388de158b5abaa0ae68b849318ed2132a87e0526ba07ebd163dd176f76f136
-
SHA512
503797956212ca0b011a07e95d1dfeb315367d7f735c37a5e572654dd294980a88556a5e9708c44cfba36033697ace8b6aaaf860bd96d713613ec3cd00c62918
-
SSDEEP
12288:PRZN2w3LDilmyd4gA9j0D/Khm90MSc8IknnTCR:5ZN2w3LDikyWt0D/YVMSc8Ikn0
Malware Config
Extracted
kutaki
http://linkwotowoto.club/new/two.php
Signatures
-
Kutaki Executable 1 IoCs
resource yara_rule static1/unpack001/TSD.exe family_kutaki -
Kutaki family
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/TSD.exe
Files
-
TSD.zip.zip .ps1
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TSD.exe.exe windows x86
9340f25848c7eee0b56334b58779d790
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
__vbaStrI2
ord690
_CIcos
_adj_fptan
__vbaStrI4
__vbaHresultCheck
__vbaVarMove
__vbaVarVargNofree
__vbaAryMove
__vbaFreeVar
__vbaLenBstr
__vbaStrVarMove
__vbaLateIdCall
ord696
__vbaPut3
__vbaEnd
__vbaFreeVarList
_adj_fdiv_m64
ord698
__vbaNextEachVar
__vbaFreeObjList
ord516
__vbaVarIndexLoadRef
__vbaStrErrVarCopy
_adj_fprem1
ord518
ord626
ord519
__vbaForEachCollAd
__vbaVarCmpNe
__vbaStrCat
__vbaSetSystemError
__vbaLenBstrB
__vbaHresultCheckObj
__vbaLenVar
_adj_fdiv_m32
ord666
__vbaAryVar
ord667
__vbaAryDestruct
ord591
__vbaVarIndexLoadRefLock
ord593
__vbaVarForInit
__vbaExitProc
ord594
ord595
__vbaObjSet
__vbaOnError
ord596
_adj_fdiv_m16i
__vbaObjSetAddref
_adj_fdivr_m16i
__vbaVarIndexLoad
ord598
__vbaForEachCollVar
ord520
__vbaBoolVar
__vbaFpR8
__vbaBoolVarNull
__vbaRefVarAry
_CIsin
ord631
__vbaErase
__vbaVarCmpGt
__vbaVargVarMove
ord525
ord632
__vbaChkstk
ord526
__vbaFileClose
EVENT_SINK_AddRef
ord528
__vbaGenerateBoundsError
__vbaGet3
ord529
__vbaStrCmp
__vbaAryConstruct2
__vbaVarTstEq
__vbaPutOwner4
__vbaNextEachCollVar
ord561
__vbaObjVar
__vbaI2I4
DllFunctionCall
ord563
__vbaVarOr
ord670
ord564
__vbaLbound
_adj_fpatan
__vbaR4Var
__vbaLateIdCallLd
__vbaR8Cy
__vbaStrR8
__vbaRedim
EVENT_SINK_Release
__vbaNew
ord600
ord601
__vbaUI1I2
_CIsqrt
__vbaObjIs
__vbaVarAnd
EVENT_SINK_QueryInterface
__vbaStr2Vec
__vbaUI1I4
__vbaExceptHandler
ord711
__vbaPrintFile
ord712
__vbaStrToUnicode
ord713
_adj_fprem
_adj_fdivr_m64
ord714
ord607
ord608
__vbaFPException
__vbaInStrVar
ord717
__vbaStrVarVal
__vbaUbound
__vbaVarCat
__vbaI2Var
ord644
ord537
ord645
_CIlog
__vbaErrorOverflow
__vbaFileOpen
ord570
ord648
__vbaR8Str
__vbaVarLateMemCallLdRf
__vbaVar2Vec
__vbaInStr
__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
__vbaFpCy
__vbaAryLock
__vbaVarAdd
__vbaStrToAnsi
__vbaStrComp
__vbaVarDup
__vbaFpI4
__vbaVarLateMemCallLd
ord616
__vbaLateMemCallLd
ord617
_CIatan
__vbaCastObj
__vbaAryCopy
ord618
__vbaStrMove
__vbaForEachVar
ord619
__vbaR8IntI4
__vbaStrVarCopy
_allmul
__vbaLateIdSt
_CItan
__vbaNextEachCollAd
__vbaAryUnlock
__vbaUI1Var
__vbaVarForNext
_CIexp
__vbaFreeObj
__vbaFreeStr
ord581
Sections
.text Size: 376KB - Virtual size: 375KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 15KB
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