Report - Client-built202.exe

Generic Malware UPX Malicious Packer Admin Tool (Sysinternals etc ...) PE File PE32
ScreenShot
Created 2023.06.14 17:42 Machine s1_win7_x6403
Filename Client-built202.exe
Type PE32 executable (GUI) Intel 80386, for MS Windows
AI Score
7
Behavior Score
1.8
ZERO API file : malware
VT API (file) 22 detected (AIDetectMalware, Artemis, ZevbaF, Xn3@ain2gNpi, malicious, high confidence, score, RATX, Static AI, Suspicious PE, Wacatac, BScope, confidence, 100%)
md5 81fe02b22a1c5d7d2f58071929b4c6dd
sha256 3f88f0443415341f4807693ead6bcd3be97d7437ba10d01f7b4969dc4ca53a3c
ssdeep 12288:wG+i1cTob5rpXuEq++p6xG5ssxODepysgSk9DyL1HUyIP9IylT8rhke6nuRs9U51:wrkcG+p6U5U8ae6n+5OaKdWq2o14
imphash 6f543444487328d5966207cb412374d0
impfuzzy 48:nmAz/xQwzQZwgmlwUTRgpkRxkXxRu+M3L39wfrjrc1SxgsmIYbgpUAmSMNzj2FN9:nmAz/xQGQZfmlbTRgpkRxkXxRu+M7Ni9
  Network IP location

Signature (4cnts)

Level Description
warning File has been identified by 22 AntiVirus engines on VirusTotal as malicious
notice Allocates read-write-execute memory (usually to unpack itself)
notice Changes read-write memory protection to read-execute (probably to avoid detection when setting all RWX flags at the same time)
info One or more processes crashed

Rules (6cnts)

Level Name Description Collection
warning Generic_Malware_Zero Generic Malware binaries (upload)
watch Admin_Tool_IN_Zero Admin Tool Sysinternals binaries (upload)
watch Malicious_Packer_Zero Malicious Packer binaries (upload)
watch UPX_Zero UPX packed file binaries (upload)
info IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature binaries (upload)

Network (0cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?

Suricata ids

PE API

IAT(Import Address Table) Library

MSVBVM60.DLL
 0x401000 __vbaVarSub
 0x401004 __vbaStrI2
 0x401008 _CIcos
 0x40100c _adj_fptan
 0x401010 __vbaVarMove
 0x401014 __vbaAryMove
 0x401018 __vbaFreeVar
 0x40101c __vbaStrVarMove
 0x401020 __vbaLenBstr
 0x401024 __vbaFreeVarList
 0x401028 __vbaEnd
 0x40102c _adj_fdiv_m64
 0x401030 __vbaFreeObjList
 0x401034 None
 0x401038 _adj_fprem1
 0x40103c __vbaRecAnsiToUni
 0x401040 __vbaStrCat
 0x401044 __vbaVarCmpNe
 0x401048 __vbaSetSystemError
 0x40104c __vbaHresultCheckObj
 0x401050 _adj_fdiv_m32
 0x401054 __vbaAryVar
 0x401058 __vbaVarTstLe
 0x40105c None
 0x401060 __vbaAryDestruct
 0x401064 __vbaVarForInit
 0x401068 None
 0x40106c None
 0x401070 __vbaCyAdd
 0x401074 __vbaOnError
 0x401078 __vbaObjSet
 0x40107c _adj_fdiv_m16i
 0x401080 __vbaObjSetAddref
 0x401084 _adj_fdivr_m16i
 0x401088 __vbaBoolVarNull
 0x40108c _CIsin
 0x401090 None
 0x401094 None
 0x401098 __vbaChkstk
 0x40109c __vbaFileClose
 0x4010a0 EVENT_SINK_AddRef
 0x4010a4 __vbaGenerateBoundsError
 0x4010a8 __vbaGet3
 0x4010ac __vbaStrCmp
 0x4010b0 __vbaAryConstruct2
 0x4010b4 __vbaCyI4
 0x4010b8 __vbaI2I4
 0x4010bc DllFunctionCall
 0x4010c0 __vbaVarLateMemSt
 0x4010c4 __vbaStrR4
 0x4010c8 _adj_fpatan
 0x4010cc __vbaLateIdCallLd
 0x4010d0 __vbaR8Cy
 0x4010d4 __vbaRecUniToAnsi
 0x4010d8 EVENT_SINK_Release
 0x4010dc __vbaUI1I2
 0x4010e0 _CIsqrt
 0x4010e4 __vbaVarAnd
 0x4010e8 EVENT_SINK_QueryInterface
 0x4010ec __vbaVarMul
 0x4010f0 __vbaExceptHandler
 0x4010f4 None
 0x4010f8 __vbaStrToUnicode
 0x4010fc _adj_fprem
 0x401100 _adj_fdivr_m64
 0x401104 __vbaI2Str
 0x401108 None
 0x40110c None
 0x401110 __vbaFPException
 0x401114 None
 0x401118 __vbaStrVarVal
 0x40111c __vbaUbound
 0x401120 __vbaI2Var
 0x401124 None
 0x401128 None
 0x40112c _CIlog
 0x401130 __vbaErrorOverflow
 0x401134 __vbaFileOpen
 0x401138 __vbaVar2Vec
 0x40113c __vbaNew2
 0x401140 _adj_fdiv_m32i
 0x401144 _adj_fdivr_m32i
 0x401148 __vbaStrCopy
 0x40114c __vbaI4Str
 0x401150 __vbaFreeStrList
 0x401154 _adj_fdivr_m32
 0x401158 _adj_fdiv_r
 0x40115c None
 0x401160 __vbaI4Var
 0x401164 __vbaVarCmpEq
 0x401168 __vbaFpCy
 0x40116c __vbaAryLock
 0x401170 __vbaVarAdd
 0x401174 __vbaVarDup
 0x401178 __vbaStrToAnsi
 0x40117c __vbaFpI2
 0x401180 __vbaVarCopy
 0x401184 __vbaVarLateMemCallLd
 0x401188 __vbaR8IntI2
 0x40118c _CIatan
 0x401190 __vbaAryCopy
 0x401194 None
 0x401198 __vbaStrMove
 0x40119c __vbaStrVarCopy
 0x4011a0 _allmul
 0x4011a4 None
 0x4011a8 _CItan
 0x4011ac None
 0x4011b0 __vbaUI1Var
 0x4011b4 __vbaAryUnlock
 0x4011b8 None
 0x4011bc __vbaVarForNext
 0x4011c0 _CIexp
 0x4011c4 __vbaMidStmtBstr
 0x4011c8 __vbaStrCy
 0x4011cc __vbaFreeStr
 0x4011d0 __vbaFreeObj

EAT(Export Address Table) is none



Similarity measure (PE file only) - Checking for service failure