Static task
static1
Behavioral task
behavioral1
Sample
exn skype tools 3.3.4.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
exn skype tools 3.3.4.exe
Resource
win10v2004-20230220-en
General
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Target
exn skype tools 3.3.4.exe
-
Size
180KB
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MD5
3823e5770440702f76a197e4e488d1d7
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SHA1
13515088536c524f727c019aa2436be468a930f1
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SHA256
a58fe9c65af83e08e4c05d00c74902eceefcfe50df3b71abac1b546618e598e6
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SHA512
5472134285474ec6c936d423866780b941f1a02c370dd7726e5af17f4efab549a8b98e06bdbcb26cae3dd95bcc1496f10ade50cad9c9fad84918e46b77f92e67
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SSDEEP
3072:MOJbLe/0VeWN74RhD+q+JePrn2lQBV+UdE+rECWp7hKjw4:JewFuyq+IPvBV+UdvrEFp7hKl
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource exn skype tools 3.3.4.exe
Files
-
exn skype tools 3.3.4.exe.exe windows x86
34617e3a9b845d5cb98359759de5737c
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
__vbaStrCat
__vbaSetSystemError
__vbaHresultCheckObj
_adj_fdiv_m32
__vbaExitProc
__vbaOnError
ord595
__vbaObjSet
_adj_fdiv_m16i
__vbaObjSetAddref
_adj_fdivr_m16i
_CIsin
ord632
__vbaChkstk
EVENT_SINK_AddRef
__vbaStrCmp
DllFunctionCall
__vbaCastObjVar
_adj_fpatan
__vbaLateIdCallLd
EVENT_SINK_Release
ord600
_CIsqrt
EVENT_SINK_QueryInterface
__vbaExceptHandler
__vbaStrToUnicode
ord606
_adj_fprem
_adj_fdivr_m64
__vbaFPException
__vbaStrVarVal
ord645
_CIlog
__vbaErrorOverflow
__vbaNew2
_adj_fdiv_m32i
_adj_fdivr_m32i
__vbaStrCopy
ord573
__vbaI4Str
__vbaFreeStrList
_adj_fdivr_m32
_adj_fdiv_r
ord100
__vbaVarAdd
__vbaVarDup
__vbaStrToAnsi
ord617
_CIatan
__vbaStrMove
ord650
_allmul
__vbaLateIdSt
_CItan
_CIexp
__vbaFreeObj
__vbaFreeStr
Sections
.text Size: 92KB - Virtual size: 91KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 4KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ