Static task
static1
Behavioral task
behavioral1
Sample
LyraUtil.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
LyraUtil.exe
Resource
win10v2004-20231020-en
General
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Target
LyraUtil.exe
-
Size
52KB
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MD5
fddcba35584244ca6359e87058307764
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SHA1
793165163df4a4c22ec4cdaec35ec2b84b08ef4c
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SHA256
f5e509d94c7e12ca7ed89faf55f59c379bcc6755c04f5423231544362c03608f
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SHA512
2c590bdb1d2cf2d62bc8d72cd85f58dd7761e4520d168d1db2808d07b81b68bcb9d0f57a631207561b27e1a896f5153dd130f91deb381d91a564887c6388470f
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SSDEEP
384:EMHRKDijqxMKDpubTX2hhGEGjPMqv80mhnN0VFH9UXJDQ44ZBoD3WylUXD7KDpu0:xB2rsqhhGEZqIG3CJDhpJeDKI2
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource LyraUtil.exe
Files
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LyraUtil.exe.exe windows:4 windows x86
63cf40ab57a1543cb91c64d3bb88ae28
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
__vbaStrI4
__vbaFreeVar
__vbaLenBstr
__vbaLateIdCall
__vbaStrVarMove
__vbaFreeVarList
_adj_fdiv_m64
__vbaFreeObjList
_adj_fprem1
__vbaStrCat
__vbaLsetFixstr
__vbaSetSystemError
__vbaHresultCheckObj
_adj_fdiv_m32
__vbaExitProc
ord595
__vbaObjSet
__vbaOnError
_adj_fdiv_m16i
__vbaObjSetAddref
_adj_fdivr_m16i
__vbaStrFixstr
_CIsin
ord632
__vbaChkstk
__vbaFileClose
EVENT_SINK_AddRef
__vbaGenerateBoundsError
__vbaGet3
__vbaStrCmp
__vbaPutOwner3
__vbaVarTstEq
__vbaI2I4
DllFunctionCall
_adj_fpatan
__vbaLateIdCallLd
EVENT_SINK_Release
__vbaUI1I2
_CIsqrt
EVENT_SINK_QueryInterface
__vbaExceptHandler
_adj_fprem
_adj_fdivr_m64
__vbaI2Str
__vbaFPException
__vbaGetOwner3
__vbaVarCat
_CIlog
__vbaErrorOverflow
__vbaFileOpen
ord648
__vbaNew2
_adj_fdiv_m32i
_adj_fdivr_m32i
ord573
__vbaStrCopy
__vbaFreeStrList
_adj_fdivr_m32
_adj_fdiv_r
ord578
ord685
ord100
__vbaVarDup
__vbaVarCopy
_CIatan
__vbaStrMove
ord619
_allmul
__vbaLateIdSt
_CItan
_CIexp
__vbaFreeStr
__vbaFreeObj
Sections
.text Size: 36KB - Virtual size: 34KB
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: 8KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ