Static task
static1
Behavioral task
behavioral1
Sample
BKKDC.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
BKKDC.exe
Resource
win10v2004-20230703-en
General
-
Target
BKKDC.exe
-
Size
1.7MB
-
MD5
a9c76840fe08d23bf63bcee751b3e7cf
-
SHA1
c4bdfa12edca7adb423247d560e1be4cec8f673a
-
SHA256
aa8ab8f1b68588fc97ab697be8a0292fc7d0f85a39a2eb6f85a520ae4a40b1d6
-
SHA512
5f79f0402374229dddb073024010d8d174079c093f9f912facf0711bdc9c4e4207b4b9bdf2e5380ac97cf412037d6ef213bd9fd4a0264d498fd690bc969e0c27
-
SSDEEP
24576:BwGS/s2c01VNCQvXFtWN+TYR0txEqYoSzOAyM:Yst01VNCQv/WN+TYR
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource BKKDC.exe
Files
-
BKKDC.exe.exe windows x86
efa3bfbb77e55eddcc416280a240305a
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
__vbaStrI4
__vbaVarMove
__vbaVarVargNofree
__vbaAryMove
__vbaFreeVar
__vbaLenBstr
__vbaStrVarMove
__vbaLateIdCall
ord589
__vbaPut3
__vbaEnd
__vbaFreeVarList
_adj_fdiv_m64
ord513
__vbaVarIndexStore
__vbaLineInputVar
__vbaFreeObjList
ord516
__vbaStrErrVarCopy
_adj_fprem1
__vbaResume
__vbaVarCmpNe
ord629
__vbaStrCat
ord552
__vbaLsetFixstr
ord660
ord553
__vbaSetSystemError
__vbaRecDestruct
ord661
__vbaLenBstrB
__vbaHresultCheckObj
ord556
ord663
ord557
__vbaVargVarCopy
__vbaLenVar
_adj_fdiv_m32
__vbaAryVar
ord666
__vbaVarTstLe
__vbaVarCmpGe
__vbaAryDestruct
__vbaVarIndexLoadRefLock
__vbaLateMemSt
ord592
__vbaVarPow
ord593
__vbaForEachCollObj
__vbaVarForInit
__vbaExitProc
ord594
ord595
__vbaOnError
__vbaObjSet
ord596
_adj_fdiv_m16i
__vbaObjSetAddref
_adj_fdivr_m16i
ord304
__vbaVarIndexLoad
ord598
ord599
__vbaBoolVar
ord520
__vbaStrFixstr
__vbaFpR8
__vbaVargVar
__vbaBoolVarNull
__vbaVarTstLt
__vbaRefVarAry
_CIsin
ord631
ord524
__vbaVarCmpGt
__vbaVargVarMove
__vbaNextEachCollObj
ord632
__vbaChkstk
ord526
__vbaFileClose
EVENT_SINK_AddRef
__vbaGenerateBoundsError
ord528
ord529
__vbaGet3
__vbaStrCmp
__vbaAryConstruct2
__vbaPutOwner3
__vbaVarTstEq
ord560
__vbaObjVar
ord561
__vbaI2I4
DllFunctionCall
__vbaVarOr
ord563
__vbaVarLateMemSt
__vbaFpUI1
__vbaCastObjVar
__vbaRedimPreserve
__vbaLbound
_adj_fpatan
ord567
__vbaR4Var
__vbaFixstrConstruct
__vbaLateIdCallLd
__vbaStrR8
__vbaRedim
EVENT_SINK_Release
__vbaNew
ord600
__vbaUI1I2
_CIsqrt
ord310
__vbaObjIs
__vbaVarAnd
__vbaLateIdCallSt
EVENT_SINK_QueryInterface
__vbaVarMul
__vbaStr2Vec
__vbaUI1I4
__vbaExceptHandler
ord312
ord711
__vbaStrToUnicode
ord712
__vbaPrintFile
_adj_fprem
_adj_fdivr_m64
__vbaVarDiv
ord607
ord608
ord530
__vbaVarCmpLe
ord716
ord531
__vbaFPException
ord717
__vbaInStrVar
__vbaUbound
__vbaStrVarVal
ord534
__vbaVarCat
__vbaCheckType
__vbaLsetFixstrFree
__vbaI2Var
ord536
__vbaFileSeek
ord537
ord645
ord538
_CIlog
__vbaErrorOverflow
__vbaFileOpen
ord570
__vbaVar2Vec
ord648
__vbaInStr
__vbaNew2
__vbaVarInt
ord571
_adj_fdiv_m32i
_adj_fdivr_m32i
ord573
__vbaStrCopy
__vbaVarCmpLt
__vbaVarNot
__vbaFreeStrList
ord576
_adj_fdivr_m32
__vbaPowerR8
ord577
__vbaR8Var
_adj_fdiv_r
ord578
ord685
ord100
ord579
__vbaVarTstNe
ord687
__vbaI4Var
__vbaVarCmpEq
ord689
ord610
__vbaLateMemCall
__vbaAryLock
__vbaVarAdd
__vbaStrToAnsi
__vbaFreeVarg
__vbaVarDup
__vbaFpI2
__vbaVarMod
ord616
__vbaVarTstGe
__vbaVarCopy
__vbaFpI4
ord617
__vbaLateMemCallLd
_CIatan
__vbaAryCopy
ord618
__vbaCastObj
__vbaStrMove
ord619
__vbaR8IntI4
__vbaStrVarCopy
ord542
ord650
_allmul
__vbaLenVarB
ord651
__vbaLateIdSt
ord545
_CItan
ord546
__vbaFPInt
__vbaAryUnlock
__vbaVarForNext
_CIexp
__vbaMidStmtBstr
__vbaI4ErrVar
__vbaFreeStr
__vbaFreeObj
ord581
Sections
.text Size: 1.7MB - Virtual size: 1.7MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 37KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 4KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ