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Report - WJU.exe

Malicious Packer Generic Malware
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ScreenShot
Created 2021.03.17 17:33 Machine s1_win7_x6402
Filename WJU.exe
Type PE32 executable (GUI) Intel 80386, for MS Windows
AI Score
8
 Behavior Score
2.4
ZERO API file : malware
VT API (file) 12 detected (AIDetect, malware1, malicious, high confidence, Save, confidence, ZevbaF, jm0@aymRiSfi, Wacapew, score, VBKrand, Kryptik, EOVV)
md5 759104370561b12f07fea800546ab47d
sha256 f6457a7b94708c66fe1b0a3740fa6b86aad2b1276717e501f2d29ae94a3daecc
ssdeep 3072:e7toViYGuhjFWTZgkTccBBhVR6FQ4dYW7t4:ckGuhjQTZgkTccBBhVR6FQ4p
imphash 82f3154e4b314b6810b189c7a61b6a27
impfuzzy 24:n9d/MSwzxwgOSwOVyq2xRN3u/39flCx1Sd3jblS4T/ESFNX+lh5HGs5mGSkEdFw9:nv/lwzxwgPweYxRN3u/399Cx1Sd3jbgN
  Network IP location

Signature (5cnts)

Level Description
watch Communicates with host for which no DNS query was performed
watch File has been identified by 12 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)
notice Yara rule detected in process memory

Rules (50cnts)

Level Name Description Collection
warning Generic_Malware_Zero Generic Malware binaries (upload)
watch Malicious_Packer_Zero Malicious Packer binaries (upload)
notice Str_Win32_Http_API Match Windows Http API call memory
notice Str_Win32_Internet_API Match Windows Inet API call memory
info anti_dbg Checks if being debugged memory
info antisb_threatExpert Anti-Sandbox checks for ThreatExpert memory
info Check_Dlls (no description) memory
info DebuggerCheck__GlobalFlags (no description) memory
info DebuggerCheck__QueryInfo (no description) memory
info DebuggerCheck__RemoteAPI (no description) memory
info DebuggerException__ConsoleCtrl (no description) memory
info DebuggerException__SetConsoleCtrl (no description) memory
info DebuggerHiding__Active (no description) memory
info DebuggerHiding__Thread (no description) memory
info disable_dep Bypass DEP memory
info IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature Zero binaries (upload)
info SEH__vba (no description) memory
info SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory
info win_hook Affect hook table memory
info create_com_service Create a COM server memory
info create_service Create a windows service memory
info cred_local Steal credential memory
info escalate_priv Escalade priviledges memory
info HasRichSignature Rich Signature Check binaries (upload)
info inject_thread Code injection with CreateRemoteThread in a remote process memory
info IsWindowsGUI (no description) binaries (upload)
info keylogger Run a keylogger memory
info migrate_apc APC queue tasks migration memory
info network_dga Communication using dga memory
info network_dns Communications use DNS memory
info network_dropper File downloader/dropper memory
info network_ftp Communications over FTP memory
info network_http Communications over HTTP memory
info network_p2p_win Communications over P2P network memory
info network_tcp_listen Listen for incoming communication memory
info network_tcp_socket Communications over RAW socket memory
info network_udp_sock Communications over UDP network memory
info screenshot Take screenshot memory
info sniff_audio Record Audio memory
info spreading_file Malware can spread east-west file memory
info spreading_share Malware can spread east-west using share drive memory
info Str_Win32_Wininet_Library Match Windows Inet API library declaration memory
info Str_Win32_Winsock2_Library Match Winsock 2 API library declaration memory
info win_files_operation Affect private profile memory
info win_mutex Create or check mutex memory
info win_private_profile Affect private profile memory
info win_registry Affect system registries memory
info win_token Affect system token memory

Network (0cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?

Suricata ids

PE API

IAT(Import Address Table) Library

MSVBVM60.DLL
 0x401000 _CIcos
 0x401004 _adj_fptan
 0x401008 None
 0x40100c __vbaVarMove
 0x401010 __vbaStrI4
 0x401014 __vbaFreeVar
 0x401018 __vbaStrVarMove
 0x40101c None
 0x401020 __vbaFreeVarList
 0x401024 _adj_fdiv_m64
 0x401028 __vbaFreeObjList
 0x40102c _adj_fprem1
 0x401030 __vbaHresultCheckObj
 0x401034 None
 0x401038 _adj_fdiv_m32
 0x40103c __vbaAryDestruct
 0x401040 __vbaLateMemSt
 0x401044 __vbaObjSet
 0x401048 __vbaOnError
 0x40104c None
 0x401050 _adj_fdiv_m16i
 0x401054 __vbaObjSetAddref
 0x401058 _adj_fdivr_m16i
 0x40105c __vbaVarTstLt
 0x401060 _CIsin
 0x401064 __vbaErase
 0x401068 None
 0x40106c __vbaChkstk
 0x401070 EVENT_SINK_AddRef
 0x401074 __vbaStrCmp
 0x401078 __vbaVarTstEq
 0x40107c __vbaObjVar
 0x401080 _adj_fpatan
 0x401084 __vbaLateIdCallLd
 0x401088 __vbaRedim
 0x40108c EVENT_SINK_Release
 0x401090 _CIsqrt
 0x401094 EVENT_SINK_QueryInterface
 0x401098 __vbaExceptHandler
 0x40109c _adj_fprem
 0x4010a0 _adj_fdivr_m64
 0x4010a4 None
 0x4010a8 __vbaFPException
 0x4010ac None
 0x4010b0 None
 0x4010b4 None
 0x4010b8 _CIlog
 0x4010bc __vbaNew2
 0x4010c0 _adj_fdiv_m32i
 0x4010c4 _adj_fdivr_m32i
 0x4010c8 __vbaStrCopy
 0x4010cc __vbaI4Str
 0x4010d0 _adj_fdivr_m32
 0x4010d4 _adj_fdiv_r
 0x4010d8 None
 0x4010dc __vbaVarTstNe
 0x4010e0 __vbaI4Var
 0x4010e4 None
 0x4010e8 __vbaVarAdd
 0x4010ec __vbaVarDup
 0x4010f0 None
 0x4010f4 __vbaLateMemCallLd
 0x4010f8 None
 0x4010fc _CIatan
 0x401100 __vbaStrMove
 0x401104 __vbaCastObj
 0x401108 _allmul
 0x40110c _CItan
 0x401110 _CIexp
 0x401114 __vbaFreeObj
 0x401118 __vbaFreeStr

EAT(Export Address Table) is none


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