Static task
static1
Behavioral task
behavioral1
Sample
exn skype tools4.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
exn skype tools4.exe
Resource
win10v2004-20230221-en
General
-
Target
exn skype tools4.exe
-
Size
228KB
-
MD5
5665c4c3c5a192925b32a57a294f67dd
-
SHA1
355b918315e5e17156519fb2d52765712f9594aa
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SHA256
e27bdde2cf0f964eacbb40b877bd903d26a93376c12cc36d15281092f34b5469
-
SHA512
a5a94b83bc25fc9928335b16fa0219a54991b620f5221cb492f70a6e06477ab97c158967943f4dc9b01f198f2c9598efe14bd4cb81502586298c69d0814bf5d4
-
SSDEEP
3072:t1LJbLe/GVeWN74RhD+oEjpHq1QIYrJ2lQBV+UdE+rECWp7hK5d0wO:tfeOFuyoEjpKPGdBV+UdvrEFp7hKn0wO
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource exn skype tools4.exe
Files
-
exn skype tools4.exe.exe windows x86
3d6946e940f5e069bf278b3c4ed5a8fb
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
__vbaStrI2
_CIcos
_adj_fptan
__vbaFreeVar
__vbaStrVarMove
__vbaLenBstr
__vbaLateIdCall
__vbaFreeVarList
_adj_fdiv_m64
__vbaFreeObjList
ord516
_adj_fprem1
__vbaResume
__vbaStrCat
__vbaSetSystemError
__vbaHresultCheckObj
_adj_fdiv_m32
__vbaAryDestruct
__vbaExitProc
__vbaOnError
__vbaObjSet
ord595
_adj_fdiv_m16i
__vbaObjSetAddref
_adj_fdivr_m16i
ord599
__vbaFpR8
_CIsin
ord632
__vbaChkstk
EVENT_SINK_AddRef
__vbaGenerateBoundsError
__vbaStrCmp
__vbaI2I4
__vbaObjVar
DllFunctionCall
__vbaCastObjVar
_adj_fpatan
__vbaLateIdCallLd
__vbaRedim
EVENT_SINK_Release
ord600
_CIsqrt
EVENT_SINK_QueryInterface
__vbaExceptHandler
__vbaStrToUnicode
ord606
_adj_fprem
_adj_fdivr_m64
__vbaFPException
ord717
ord319
__vbaUbound
__vbaStrVarVal
__vbaVarCat
ord644
ord537
ord645
_CIlog
__vbaErrorOverflow
__vbaInStr
__vbaNew2
_adj_fdiv_m32i
_adj_fdivr_m32i
__vbaStrCopy
ord573
__vbaFreeStrList
_adj_fdivr_m32
_adj_fdiv_r
ord685
ord100
__vbaAryLock
__vbaVarAdd
__vbaLateMemCall
ord320
__vbaStrToAnsi
__vbaVarDup
ord321
__vbaFpI4
ord616
ord617
_CIatan
ord618
__vbaStrMove
ord650
_allmul
__vbaLateIdSt
_CItan
ord546
__vbaAryUnlock
_CIexp
__vbaFreeObj
__vbaFreeStr
Sections
.text Size: 140KB - Virtual size: 137KB
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: 4KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ