Static task
static1
Behavioral task
behavioral1
Sample
Stubr.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
Stubr.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
aaaaaaa.exe
Resource
win7-20231129-en
Behavioral task
behavioral4
Sample
aaaaaaa.exe
Resource
win10v2004-20231215-en
General
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Target
8b2b6a306357ef3e5af664d759e11962
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Size
227KB
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MD5
8b2b6a306357ef3e5af664d759e11962
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SHA1
e9e98630b1c6ba376684aa5b267c4e25850ddd45
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SHA256
17d77acf0d79c88ac70b4412c11d901585536315fa0d702c92c269f6a797ba71
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SHA512
43a59c133e06e563572c79630bff4c1383a3baa5159d87f8452b70cb8cbcdc2a41523263571fb661f6af7ee2cf06da565233da0672b4e659726c14c388dd6370
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SSDEEP
6144:7Dat7HjP6bH90OQWW6ARvS5ULbihwnw1M0c250lSuiCmrzu:it7HYd0OQr6Ia5CnYM0klSRCmvu
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/Stubr.exe
Files
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8b2b6a306357ef3e5af664d759e11962.cab
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Stubr.exe.exe windows:4 windows x86 arch:x86
0edc8f9b6364becadc2aa32b7a813c06
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
_CIcos
_adj_fptan
__vbaVarMove
__vbaAryMove
__vbaFreeVar
__vbaLenBstr
__vbaStrVarMove
ord696
__vbaFreeVarList
__vbaEnd
_adj_fdiv_m64
__vbaNextEachVar
__vbaFreeObjList
ord516
_adj_fprem1
__vbaRecAnsiToUni
ord626
ord628
__vbaStrCat
__vbaSetSystemError
__vbaHresultCheckObj
__vbaLenBstrB
_adj_fdiv_m32
__vbaAryVar
__vbaAryDestruct
__vbaOnError
_adj_fdiv_m16i
__vbaObjSetAddref
_adj_fdivr_m16i
ord598
__vbaCyStr
_CIsin
__vbaErase
ord631
__vbaVarZero
ord632
__vbaChkstk
EVENT_SINK_AddRef
ord528
__vbaStrCmp
__vbaAryConstruct2
__vbaVarTstEq
DllFunctionCall
_adj_fpatan
__vbaRedim
__vbaUI1ErrVar
__vbaRecUniToAnsi
EVENT_SINK_Release
_CIsqrt
EVENT_SINK_QueryInterface
__vbaExceptHandler
ord712
_adj_fprem
_adj_fdivr_m64
__vbaI2Str
ord608
__vbaFPException
__vbaUbound
__vbaStrVarVal
__vbaVarCat
ord644
ord537
_CIlog
__vbaVarLateMemCallLdRf
__vbaNew2
_adj_fdiv_m32i
_adj_fdivr_m32i
ord573
__vbaStrCopy
ord681
__vbaI4Str
__vbaFreeStrList
_adj_fdivr_m32
_adj_fdiv_r
ord100
__vbaI4Var
__vbaAryLock
__vbaStrToAnsi
__vbaAryVarVarg
__vbaVarLateMemCallLd
__vbaFpI4
_CIatan
__vbaStrMove
__vbaAryCopy
ord619
__vbaForEachVar
_allmul
_CItan
__vbaAryUnlock
_CIexp
__vbaI4ErrVar
__vbaFreeObj
__vbaFreeStr
ord581
Sections
.text Size: 384KB - Virtual size: 382KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 6KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 176KB - Virtual size: 174KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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aaaaaaa.exe