Report - vbc.exe

Generic Malware Malicious Packer UPX PE File PE32
ScreenShot
Created 2021.10.08 10:00 Machine s1_win7_x6401
Filename vbc.exe
Type PE32 executable (GUI) Intel 80386, for MS Windows
AI Score
2
Behavior Score
2.2
ZERO API file : clean
VT API (file) 36 detected (AIDetect, malware2, Mucc, malicious, high confidence, GenericKD, Unsafe, Save, confidence, 100%, Attribute, HighConfidence, EQFP, Pgnl, Fareit, Sabsik, score, VBKrypt, R444067, ai score=85, GuLoader, VSNW05J21, Static AI, Suspicious PE, RnkBend)
md5 48fdc5b6bdb43e972dff31304cf10ced
sha256 e4007053593d910ff36637d471e80b1735eb33be5ef3b92c589be0a5ef6dd874
ssdeep 1536:DF+1PWEJPTreWG3TcI3yDKVbYRZQ6DEgqna5Fyn3GpaZ2TI:B+Yu7reV3TcICrfJhC3GpaF
imphash 461dc836626597933929a467ef09b568
impfuzzy 48:nmz/wzQwgPwUOYsx43YkCxr1SxdmNATyqFNmCzlhwVrwZHTSwpw8:nmz/GQfPbOYsx4nCxrwxdmN4yqFNmCz9
  Network IP location

Signature (5cnts)

Level Description
danger File has been identified by 36 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 Checks amount of memory in system
info The file contains an unknown PE resource name possibly indicative of a packer

Rules (5cnts)

Level Name Description Collection
warning Generic_Malware_Zero Generic Malware 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 __vbaStrI2
 0x401004 _CIcos
 0x401008 _adj_fptan
 0x40100c __vbaVarMove
 0x401010 __vbaFreeVar
 0x401014 __vbaStrVarMove
 0x401018 __vbaFreeVarList
 0x40101c _adj_fdiv_m64
 0x401020 __vbaFreeObjList
 0x401024 None
 0x401028 _adj_fprem1
 0x40102c __vbaStrCat
 0x401030 None
 0x401034 __vbaSetSystemError
 0x401038 None
 0x40103c __vbaHresultCheckObj
 0x401040 None
 0x401044 _adj_fdiv_m32
 0x401048 __vbaAryDestruct
 0x40104c None
 0x401050 __vbaObjSet
 0x401054 None
 0x401058 __vbaOnError
 0x40105c _adj_fdiv_m16i
 0x401060 _adj_fdivr_m16i
 0x401064 None
 0x401068 None
 0x40106c _CIsin
 0x401070 None
 0x401074 __vbaChkstk
 0x401078 EVENT_SINK_AddRef
 0x40107c __vbaGenerateBoundsError
 0x401080 __vbaStrCmp
 0x401084 __vbaAryConstruct2
 0x401088 None
 0x40108c None
 0x401090 __vbaI2I4
 0x401094 DllFunctionCall
 0x401098 __vbaVarLateMemSt
 0x40109c _adj_fpatan
 0x4010a0 EVENT_SINK_Release
 0x4010a4 __vbaUI1I2
 0x4010a8 _CIsqrt
 0x4010ac EVENT_SINK_QueryInterface
 0x4010b0 __vbaExceptHandler
 0x4010b4 __vbaStrToUnicode
 0x4010b8 _adj_fprem
 0x4010bc _adj_fdivr_m64
 0x4010c0 None
 0x4010c4 __vbaFPException
 0x4010c8 __vbaStrVarVal
 0x4010cc None
 0x4010d0 None
 0x4010d4 _CIlog
 0x4010d8 __vbaErrorOverflow
 0x4010dc __vbaNew2
 0x4010e0 _adj_fdiv_m32i
 0x4010e4 _adj_fdivr_m32i
 0x4010e8 __vbaStrCopy
 0x4010ec __vbaFreeStrList
 0x4010f0 _adj_fdivr_m32
 0x4010f4 _adj_fdiv_r
 0x4010f8 None
 0x4010fc None
 0x401100 __vbaStrToAnsi
 0x401104 None
 0x401108 _CIatan
 0x40110c __vbaStrMove
 0x401110 __vbaCastObj
 0x401114 _allmul
 0x401118 _CItan
 0x40111c _CIexp
 0x401120 __vbaFreeStr
 0x401124 __vbaFreeObj

EAT(Export Address Table) is none



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