Behavioral task
behavioral1
Sample
6cffe7a63ec7e31aee6425c2c6ea5259f16c9e817b4bafbd3a8d8283f86d84d4.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
6cffe7a63ec7e31aee6425c2c6ea5259f16c9e817b4bafbd3a8d8283f86d84d4.exe
Resource
win10v2004-20240426-en
General
-
Target
6cffe7a63ec7e31aee6425c2c6ea5259f16c9e817b4bafbd3a8d8283f86d84d4.exe
-
Size
1.8MB
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MD5
b53f4a29e8f17c661eff669b55504b59
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SHA1
d478161c439a2455370644ad9cd0bed4ed743ab5
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SHA256
6cffe7a63ec7e31aee6425c2c6ea5259f16c9e817b4bafbd3a8d8283f86d84d4
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SHA512
f7a0669a86a4f02a02b59954ea6826e0ecc36f1570e0eea0b9cb6ecd58e9f29edd2c107235353c513088cd299648bb0285d2aaf5b3171beafce9bfb084a1dea8
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SSDEEP
12288:0J3svJVRIliHZF/ESrnE46A9jmP/uhu/yMS08CkntxYR:ysvJvuiHZFPn3fmP/UDMS08Ckn3
Malware Config
Extracted
kutaki
http://treysbeatend.com/laptop/squared.php
http://terebinnahicc.club/sec/kool.txt
Signatures
-
Kutaki family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource 6cffe7a63ec7e31aee6425c2c6ea5259f16c9e817b4bafbd3a8d8283f86d84d4.exe
Files
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6cffe7a63ec7e31aee6425c2c6ea5259f16c9e817b4bafbd3a8d8283f86d84d4.exe.exe windows:4 windows x86 arch:x86
d6d825dc5d4d07d8432f82912d47090f
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
ord690
__vbaStrI2
_CIcos
_adj_fptan
__vbaHresultCheck
__vbaStrI4
__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
__vbaSetSystemError
__vbaLenBstrB
__vbaHresultCheckObj
__vbaLenVar
_adj_fdiv_m32
__vbaAryVar
ord667
__vbaAryDestruct
ord591
__vbaVarIndexLoadRefLock
__vbaVarForInit
ord593
ord594
ord595
__vbaOnError
__vbaObjSet
ord596
_adj_fdiv_m16i
__vbaObjSetAddref
_adj_fdivr_m16i
__vbaVarIndexLoad
ord598
__vbaFpR4
__vbaForEachCollVar
ord520
__vbaBoolVarNull
__vbaRefVarAry
__vbaFpR8
_CIsin
__vbaErase
ord631
__vbaVarCmpGt
__vbaVargVarMove
ord632
ord525
__vbaChkstk
ord526
__vbaFileClose
EVENT_SINK_AddRef
ord528
__vbaGenerateBoundsError
ord529
__vbaGet3
__vbaStrCmp
__vbaAryConstruct2
__vbaVarTstEq
__vbaPutOwner4
__vbaR4Str
__vbaNextEachCollVar
__vbaObjVar
__vbaI2I4
DllFunctionCall
ord563
__vbaVarOr
ord670
ord564
__vbaLbound
_adj_fpatan
__vbaR4Var
__vbaLateIdCallLd
__vbaR8Cy
__vbaRedim
__vbaStrR8
EVENT_SINK_Release
__vbaNew
ord600
ord601
__vbaUI1I2
_CIsqrt
__vbaObjIs
__vbaVarAnd
EVENT_SINK_QueryInterface
__vbaStr2Vec
__vbaUI1I4
__vbaExceptHandler
ord711
ord712
__vbaStrToUnicode
__vbaPrintFile
ord713
_adj_fprem
_adj_fdivr_m64
ord714
ord607
ord608
ord716
__vbaFPException
__vbaInStrVar
ord717
__vbaUbound
__vbaStrVarVal
__vbaVarCat
__vbaI2Var
ord644
ord537
ord645
_CIlog
__vbaErrorOverflow
__vbaFileOpen
__vbaVarLateMemCallLdRf
__vbaVar2Vec
__vbaInStr
ord570
ord648
__vbaNew2
__vbaR8Str
__vbaVarInt
_adj_fdiv_m32i
_adj_fdivr_m32i
__vbaVarSetObj
ord573
__vbaStrCopy
__vbaI4Str
ord681
__vbaVarCmpLt
__vbaFreeStrList
ord576
_adj_fdivr_m32
__vbaPowerR8
_adj_fdiv_r
ord685
ord100
__vbaVarTstNe
__vbaVarSetVar
__vbaI4Var
ord689
__vbaFpCy
__vbaAryLock
__vbaVarAdd
__vbaStrComp
__vbaStrToAnsi
__vbaVarDup
__vbaVarLateMemCallLd
ord616
__vbaFpI4
__vbaLateMemCallLd
ord617
_CIatan
__vbaCastObj
ord618
__vbaAryCopy
__vbaStrMove
__vbaForEachVar
ord619
__vbaStrVarCopy
__vbaR8IntI4
_allmul
__vbaLateIdSt
_CItan
__vbaNextEachCollAd
ord546
__vbaAryUnlock
__vbaUI1Var
__vbaFPInt
__vbaVarForNext
_CIexp
__vbaFreeStr
__vbaFreeObj
ord581
Sections
.text Size: 1.6MB - Virtual size: 1.6MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 23KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 276KB - Virtual size: 274KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ