Behavioral task
behavioral1
Sample
kys.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
kys.exe
Resource
win10v2004-20241007-en
General
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Target
kys.exe
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Size
3.2MB
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MD5
0515143005b3e92fe50594bc1e30af7b
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SHA1
1f565728bcc13bf1e49760c98bd96e15dacb42fc
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SHA256
676a40f2c599ffe574343860e190a7c293ade8e32cd83b66f6ff6f8d4c0b3a53
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SHA512
e813c528c5f1ff3b447b3701f3eb947d6697bf2880a39256d5c0e118cdebdb653651611ae3a03586871bce8d375c6035fdca1a7c8370605d3f68313928bbae3c
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SSDEEP
49152:tevXI22SsaNYfdPBldt698dBcjH3c0TbRSLoGd7/THHB72eh2NTA:UvY22SsaNYfdPBldt6+dBcjH3c0SZ
Malware Config
Signatures
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Quasar family
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Quasar payload 1 IoCs
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource kys.exe
Files
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kys.exe.exe windows:4 windows x86 arch:x86
8c16c795b57934183422be5f6df7d891
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
EVENT_SINK_GetIDsOfNames
ord690
_CIcos
_adj_fptan
__vbaStrI4
__vbaVarVargNofree
__vbaFreeVar
__vbaLenBstr
__vbaLateIdCall
__vbaPut3
__vbaEnd
__vbaFreeVarList
_adj_fdiv_m64
EVENT_SINK_Invoke
__vbaRaiseEvent
__vbaFreeObjList
ord516
__vbaStrErrVarCopy
ord517
_adj_fprem1
__vbaRecAnsiToUni
ord519
__vbaCopyBytes
__vbaStrCat
__vbaLsetFixstr
__vbaRecDestruct
__vbaSetSystemError
ord661
__vbaHresultCheckObj
__vbaNameFile
_adj_fdiv_m32
Zombie_GetTypeInfo
__vbaAryDestruct
ord669
ord593
__vbaExitProc
ord594
__vbaOnError
__vbaObjSet
_adj_fdiv_m16i
__vbaObjSetAddref
_adj_fdivr_m16i
ord598
__vbaFpR4
ord705
__vbaStrFixstr
_CIsin
ord631
ord709
ord525
__vbaChkstk
__vbaFileClose
EVENT_SINK_AddRef
__vbaGenerateBoundsError
__vbaGet3
__vbaStrCmp
ord529
__vbaGet4
__vbaPutOwner3
__vbaAryConstruct2
__vbaVarTstEq
__vbaI2I4
DllFunctionCall
__vbaFpUI1
__vbaRedimPreserve
__vbaStrR4
_adj_fpatan
__vbaLateIdCallLd
Zombie_GetTypeInfoCount
__vbaRedim
__vbaRecUniToAnsi
EVENT_SINK_Release
__vbaNew
ord600
__vbaUI1I2
_CIsqrt
EVENT_SINK_QueryInterface
__vbaExceptHandler
ord712
__vbaStrToUnicode
ord606
_adj_fprem
_adj_fdivr_m64
ord714
ord609
__vbaFPException
ord319
__vbaGetOwner3
__vbaUbound
ord535
__vbaFileSeek
ord537
_CIlog
__vbaErrorOverflow
__vbaFileOpen
ord648
ord570
__vbaNew2
__vbaInStr
_adj_fdiv_m32i
ord572
_adj_fdivr_m32i
__vbaStrCopy
__vbaI4Str
__vbaFreeStrList
_adj_fdivr_m32
_adj_fdiv_r
ord100
__vbaI4Var
ord689
__vbaAryLock
__vbaVarAdd
ord611
ord320
__vbaVarDup
__vbaStrToAnsi
ord321
__vbaFpI2
__vbaFpI4
ord616
__vbaLateMemCallLd
_CIatan
__vbaStrMove
ord618
__vbaCastObj
__vbaR8IntI4
ord650
_allmul
_CItan
__vbaAryUnlock
_CIexp
__vbaFreeObj
__vbaFreeStr
ord580
ord581
Sections
.text Size: 104KB - Virtual size: 100KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.data Size: 4KB - Virtual size: 6KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 8KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE