Behavioral task
behavioral1
Sample
7177cf9f393364d37caa1cf3d970bd5381333fb655ec3f83becdb8c4861ed429 (1).zip
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
7177cf9f393364d37caa1cf3d970bd5381333fb655ec3f83becdb8c4861ed429 (1).zip
Resource
win10v2004-20230915-en
Behavioral task
behavioral3
Sample
7177cf9f393364d37caa1cf3d970bd5381333fb655ec3f83becdb8c4861ed429.exe
Resource
win7-20230831-en
Behavioral task
behavioral4
Sample
7177cf9f393364d37caa1cf3d970bd5381333fb655ec3f83becdb8c4861ed429.exe
Resource
win10v2004-20230915-en
General
-
Target
7177cf9f393364d37caa1cf3d970bd5381333fb655ec3f83becdb8c4861ed429 (1).zip
-
Size
423KB
-
MD5
8b86c917ba830a8b4b079dac766f8215
-
SHA1
da98299aaff7a8de1bd66aefab7c458ff7279128
-
SHA256
ad4105a0782f6efc19aa2b31dd763f9059baf00a517ea3b8a8d0636363faf000
-
SHA512
4be015749384ba1ab89f03ef985fb44a178154ffdac8a9a87d32091ad47ccc0a915c61ac2371d9b4c95cb1b68a660e4e37b83a5cded2a2df65e5a6ea7930e2e4
-
SSDEEP
12288:M9BVx8pDVSYIxrH3FBaZSXISieH4TnC5jQJEy8:sVQMYItXPaZKPHwI2Ey8
Malware Config
Extracted
kutaki
http://newloshree.xyz/work/son.php
Signatures
-
Kutaki Executable 1 IoCs
Processes:
resource yara_rule static1/unpack001/7177cf9f393364d37caa1cf3d970bd5381333fb655ec3f83becdb8c4861ed429.exe family_kutaki -
Kutaki family
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource unpack001/7177cf9f393364d37caa1cf3d970bd5381333fb655ec3f83becdb8c4861ed429.exe
Files
-
7177cf9f393364d37caa1cf3d970bd5381333fb655ec3f83becdb8c4861ed429 (1).zip.zip
Password: infected
-
7177cf9f393364d37caa1cf3d970bd5381333fb655ec3f83becdb8c4861ed429.exe.exe windows:4 windows x86
92ea9227782f0ce87ec7d6acf15fa241
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
EVENT_SINK_GetIDsOfNames
__vbaVarTstGt
__vbaVarSub
ord690
__vbaStrI2
_CIcos
_adj_fptan
__vbaHresultCheck
__vbaStrI4
__vbaVarMove
__vbaVarVargNofree
__vbaAryMove
__vbaFreeVar
__vbaLenBstr
__vbaLateIdCall
__vbaStrVarMove
ord696
__vbaPut3
__vbaEnd
__vbaFreeVarList
_adj_fdiv_m64
ord698
EVENT_SINK_Invoke
__vbaNextEachVar
__vbaFreeObjList
ord516
__vbaVarIndexLoadRef
__vbaStrErrVarCopy
_adj_fprem1
__vbaRecAnsiToUni
ord518
ord626
ord519
__vbaResume
__vbaForEachCollAd
__vbaVarCmpNe
__vbaStrCat
ord552
ord553
ord660
__vbaRecDestruct
__vbaSetSystemError
__vbaLenBstrB
ord662
__vbaHresultCheckObj
ord557
__vbaLenVar
_adj_fdiv_m32
ord666
__vbaAryVar
__vbaVarTstLe
ord667
Zombie_GetTypeInfo
__vbaAryDestruct
ord591
__vbaVarIndexLoadRefLock
__vbaLateMemSt
ord593
__vbaVarForInit
__vbaExitProc
__vbaForEachCollObj
ord594
__vbaObjSet
__vbaOnError
ord595
ord596
_adj_fdiv_m16i
ord702
__vbaObjSetAddref
_adj_fdivr_m16i
__vbaVarIndexLoad
ord598
ord599
__vbaForEachCollVar
ord520
__vbaRefVarAry
__vbaFpR8
__vbaBoolVarNull
_CIsin
ord631
__vbaErase
__vbaVarCmpGt
__vbaVargVarMove
ord525
ord632
__vbaNextEachCollObj
__vbaChkstk
ord526
__vbaFileClose
EVENT_SINK_AddRef
__vbaGenerateBoundsError
ord528
__vbaGet3
ord529
__vbaStrCmp
__vbaAryConstruct2
__vbaVarTstEq
__vbaPutOwner4
ord560
__vbaDateR8
__vbaNextEachCollVar
ord561
__vbaObjVar
__vbaI2I4
DllFunctionCall
ord563
ord670
__vbaVarOr
ord564
__vbaCastObjVar
__vbaLbound
__vbaStrR4
_adj_fpatan
__vbaR4Var
__vbaLateIdCallLd
Zombie_GetTypeInfoCount
__vbaR8Cy
__vbaRedim
__vbaStrR8
__vbaRecUniToAnsi
EVENT_SINK_Release
__vbaNew
ord600
ord601
__vbaUI1I2
_CIsqrt
__vbaObjIs
__vbaVarAnd
EVENT_SINK_QueryInterface
__vbaStr2Vec
__vbaUI1I4
__vbaVarMul
__vbaExceptHandler
ord711
__vbaPrintFile
ord712
__vbaStrToUnicode
ord606
ord713
__vbaDateStr
_adj_fprem
_adj_fdivr_m64
ord714
ord607
ord608
__vbaFPException
__vbaInStrVar
ord717
__vbaUbound
__vbaStrVarVal
__vbaVarCat
__vbaDateVar
__vbaCheckType
__vbaI2Var
ord644
ord537
ord645
ord538
_CIlog
__vbaErrorOverflow
__vbaFileOpen
ord570
ord648
__vbaVar2Vec
__vbaInStr
__vbaVarLateMemCallLdRf
__vbaR8Str
__vbaNew2
_adj_fdiv_m32i
_adj_fdivr_m32i
ord573
__vbaVarSetObj
__vbaStrCopy
__vbaI4Str
ord681
__vbaVarCmpLt
ord575
__vbaFreeStrList
ord576
_adj_fdivr_m32
__vbaPowerR8
__vbaR8Var
_adj_fdiv_r
ord685
ord100
__vbaVarTstNe
__vbaI4Var
ord689
__vbaVarCmpEq
__vbaFpCy
ord610
__vbaAryLock
__vbaVarAdd
__vbaLateMemCall
__vbaStrComp
__vbaFreeVarg
ord612
__vbaStrToAnsi
__vbaVarDup
ord613
__vbaFpI2
__vbaFpI4
ord616
__vbaVarLateMemCallLd
__vbaRecDestructAnsi
ord617
__vbaLateMemCallLd
_CIatan
__vbaAryCopy
ord618
__vbaStrMove
__vbaCastObj
__vbaForEachVar
__vbaR8IntI4
__vbaStrVarCopy
ord619
ord542
ord650
ord543
_allmul
ord544
__vbaLateIdSt
ord545
_CItan
__vbaNextEachCollAd
__vbaAryUnlock
__vbaUI1Var
__vbaVarForNext
_CIexp
__vbaFreeObj
__vbaFreeStr
ord581
Sections
.text Size: 536KB - Virtual size: 534KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 35KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 268KB - Virtual size: 265KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ