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Report - PEP2.exe

Emotet PWS .NET framework njRAT RAT Gen1 Generic Malware UPX Malicious Library MZP Format PE File PE32 .NET EXE OS Processor Check DLL PE64
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ScreenShot
Created 2023.05.25 17:48 Machine s1_win7_x6401
Filename PEP2.exe
Type PE32 executable (GUI) Intel 80386, for MS Windows
AI Score
4
 Behavior Score
8.2
ZERO API file : malware
VT API (file) 39 detected (Csdi, malicious, high confidence, Babar, Artemis, unsafe, Vdl8, score, FileRepMalware, Agen, Vsmw, Siggen16, AdwareFileTour, Sabsik, Detected, Tnega, ai score=88, Outbreak, susgen, confidence)
md5 0b79fbf16b76bd0ff14e9d079e40e889
sha256 e99574f67e511e9b940c788de58592b02542972981f69ebe2806d876e01135fb
ssdeep 6144:x/QiQXCfkm+ksmpk3U9j0IT2OGBfj/WUplm6zIOYQNd28pTXdAmpCLVRZoglM7LT:pQi3fP6m6UR0IT2lL//plmW9bTXeVhD4
imphash 884310b1928934402ea6fec1dbd3cf5e
impfuzzy 48:8cfp1rcQX0gebPCDr+ZbldH9AOZGwt+Eu55T/lGB:8cfpdcqNebqDrmrHW2
  Network IP location

Signature (20cnts)

Level Description
danger File has been identified by 39 AntiVirus engines on VirusTotal as malicious
warning Generates some ICMP traffic
watch Deletes executed files from disk
watch Installs itself for autorun at Windows startup
notice Allocates read-write-execute memory (usually to unpack itself)
notice An executable file was downloaded by the process pep2.tmp
notice Checks adapter addresses which can be used to detect virtual network interfaces
notice Creates executable files on the filesystem
notice Drops a binary and executes it
notice Drops an executable to the user AppData folder
notice HTTP traffic contains suspicious features which may be indicative of malware related traffic
notice One or more potentially interesting buffers were extracted
notice Performs some HTTP requests
notice Sends data using the HTTP POST Method
info Checks amount of memory in system
info Checks if process is being debugged by a debugger
info Collects information to fingerprint the system (MachineGuid
info One or more processes crashed
info Queries for the computername
info The executable contains unknown PE section names indicative of a packer (could be a false positive)

Rules (21cnts)

Level Name Description Collection
danger Win32_Trojan_Emotet_2_Zero Win32 Trojan Emotet binaries (download)
danger Win32_Trojan_Emotet_2_Zero Win32 Trojan Emotet binaries (upload)
danger Win32_Trojan_Gen_1_0904B0_Zero Win32 Trojan Emotet binaries (download)
danger Win_Backdoor_njRAT_1_Zero Win Backdoor njRAT binaries (download)
warning Generic_Malware_Zero Generic Malware binaries (download)
watch Malicious_Library_Zero Malicious_Library binaries (download)
watch Malicious_Library_Zero Malicious_Library binaries (upload)
watch UPX_Zero UPX packed file binaries (download)
watch UPX_Zero UPX packed file binaries (upload)
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (download)
info Is_DotNET_EXE (no description) binaries (download)
info IsDLL (no description) binaries (download)
info IsPE32 (no description) binaries (download)
info IsPE32 (no description) binaries (upload)
info IsPE64 (no description) binaries (download)
info mzp_file_format MZP(Delphi) file format binaries (download)
info mzp_file_format MZP(Delphi) file format binaries (upload)
info OS_Processor_Check_Zero OS Processor Check binaries (download)
info PE_Header_Zero PE File Signature binaries (download)
info PE_Header_Zero PE File Signature binaries (upload)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (download)

Network (26cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://link.storjshare.io/s/juwxjm5rlewtkplox6e4e3btskgq/yokoso/fullham/manatara/poweroff.exe?download=1
whois
Unknown 185.244.226.4 clean
http://link.storjshare.io/juwxjm5rlewtkplox6e4e3btskgq/yokoso%2Ffullham%2Fmanatara%2Fpoweroff.exe?download=1
whois
Unknown 185.244.226.4 clean
http://360devtracking.com/ezzcbmueaa4iwhvb/fmovies
whois
RU RocketTelecom LLC 37.230.138.66 23046 mailcious
https://link.storjshare.io/s/jxjnpyegksik26mz4wqismdyexpq/yokoso/fullham/enel/hand-M2u7HcEuL9S7AFLW.exe?download=1
whois
Unknown 185.244.226.4 clean
https://connectini.net/Series/SuperNitouDisc.php
whois
RU RocketTelecom LLC 37.230.138.123 7619 mailcious
https://connectini.net/Series/kenpachi/2/goodchannel/KR.json
whois
RU RocketTelecom LLC 37.230.138.123 1972 mailcious
https://wewewe.s3.eu-central-1.amazonaws.com/WeUninstalled.exe
whois
DE AMAZON-02 52.219.140.16 23052 mailcious
https://www.google.com/
whois
US GOOGLE 172.217.31.4 clean
https://connectini.net/Series/configPoduct/2/goodchannel.json
whois
RU RocketTelecom LLC 37.230.138.123 1973 mailcious
https://connectini.net/Series/Conumer2kenpachi.php
whois
RU RocketTelecom LLC 37.230.138.123 1974 mailcious
https://link.storjshare.io/s/jx573tmlnr5wf7adrak4haxbcyra/yokoso/fullham/enel/up-do-dat-M2u7HcEuL9S7AFLW.exe?download=1
whois
Unknown 185.244.226.4 clean
https://connectini.net/S2S/Disc/Disc.php?ezok=flabs2&tesla=7
whois
RU RocketTelecom LLC 37.230.138.123 7620 mailcious
https://link.storjshare.io/jx573tmlnr5wf7adrak4haxbcyra/yokoso/fullham/enel/up-do-dat-M2u7HcEuL9S7AFLW.exe?download=1
whois
Unknown 185.244.226.4 clean
n8w5.c12.e2-1.dev
whois
Unknown malware
wewewe.s3.eu-central-1.amazonaws.com
whois
Unknown 3.5.138.115 mailcious
www.google.com
whois
US GOOGLE 142.250.76.132 clean
link.storjshare.io
whois
Unknown 185.244.226.4 clean
google.com
whois
US GOOGLE 142.250.206.206 clean
360devtracking.com
whois
RU RocketTelecom LLC 37.230.138.66 mailcious
connectini.net
whois
RU RocketTelecom LLC 37.230.138.123 mailcious
142.251.220.78
whois
US GOOGLE 142.251.220.78 clean
52.219.140.16
whois
DE AMAZON-02 52.219.140.16 clean
37.230.138.123
whois
RU RocketTelecom LLC 37.230.138.123 mailcious
37.230.138.66
whois
RU RocketTelecom LLC 37.230.138.66 mailcious
172.217.31.4
whois
US GOOGLE 172.217.31.4 clean
185.244.226.4
whois
Unknown 185.244.226.4 clean

Suricata ids

ET INFO File Sharing Service Domain in DNS Lookup (link .storjshare .io)
ET INFO Observed File Sharing Service Domain (link .storjshare .io in TLS SNI)
SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)
ET POLICY PE EXE or DLL Windows file download HTTP
ET INFO EXE - Served Attached HTTP

PE API

IAT(Import Address Table) Library

kernel32.dll
 0x40d0b4 DeleteCriticalSection
 0x40d0b8 LeaveCriticalSection
 0x40d0bc EnterCriticalSection
 0x40d0c0 InitializeCriticalSection
 0x40d0c4 VirtualFree
 0x40d0c8 VirtualAlloc
 0x40d0cc LocalFree
 0x40d0d0 LocalAlloc
 0x40d0d4 WideCharToMultiByte
 0x40d0d8 TlsSetValue
 0x40d0dc TlsGetValue
 0x40d0e0 MultiByteToWideChar
 0x40d0e4 GetModuleHandleA
 0x40d0e8 GetLastError
 0x40d0ec GetCommandLineA
 0x40d0f0 WriteFile
 0x40d0f4 SetFilePointer
 0x40d0f8 SetEndOfFile
 0x40d0fc RtlUnwind
 0x40d100 ReadFile
 0x40d104 RaiseException
 0x40d108 GetStdHandle
 0x40d10c GetFileSize
 0x40d110 GetSystemTime
 0x40d114 GetFileType
 0x40d118 ExitProcess
 0x40d11c CreateFileA
 0x40d120 CloseHandle
user32.dll
 0x40d128 MessageBoxA
oleaut32.dll
 0x40d130 VariantChangeTypeEx
 0x40d134 VariantCopyInd
 0x40d138 VariantClear
 0x40d13c SysStringLen
 0x40d140 SysAllocStringLen
advapi32.dll
 0x40d148 RegQueryValueExA
 0x40d14c RegOpenKeyExA
 0x40d150 RegCloseKey
 0x40d154 OpenProcessToken
 0x40d158 LookupPrivilegeValueA
kernel32.dll
 0x40d160 WriteFile
 0x40d164 VirtualQuery
 0x40d168 VirtualProtect
 0x40d16c VirtualFree
 0x40d170 VirtualAlloc
 0x40d174 Sleep
 0x40d178 SizeofResource
 0x40d17c SetLastError
 0x40d180 SetFilePointer
 0x40d184 SetErrorMode
 0x40d188 SetEndOfFile
 0x40d18c RemoveDirectoryA
 0x40d190 ReadFile
 0x40d194 LockResource
 0x40d198 LoadResource
 0x40d19c LoadLibraryA
 0x40d1a0 IsDBCSLeadByte
 0x40d1a4 GetWindowsDirectoryA
 0x40d1a8 GetVersionExA
 0x40d1ac GetUserDefaultLangID
 0x40d1b0 GetSystemInfo
 0x40d1b4 GetSystemDefaultLCID
 0x40d1b8 GetProcAddress
 0x40d1bc GetModuleHandleA
 0x40d1c0 GetModuleFileNameA
 0x40d1c4 GetLocaleInfoA
 0x40d1c8 GetLastError
 0x40d1cc GetFullPathNameA
 0x40d1d0 GetFileSize
 0x40d1d4 GetFileAttributesA
 0x40d1d8 GetExitCodeProcess
 0x40d1dc GetEnvironmentVariableA
 0x40d1e0 GetCurrentProcess
 0x40d1e4 GetCommandLineA
 0x40d1e8 GetACP
 0x40d1ec InterlockedExchange
 0x40d1f0 FormatMessageA
 0x40d1f4 FindResourceA
 0x40d1f8 DeleteFileA
 0x40d1fc CreateProcessA
 0x40d200 CreateFileA
 0x40d204 CreateDirectoryA
 0x40d208 CloseHandle
user32.dll
 0x40d210 TranslateMessage
 0x40d214 SetWindowLongA
 0x40d218 PeekMessageA
 0x40d21c MsgWaitForMultipleObjects
 0x40d220 MessageBoxA
 0x40d224 LoadStringA
 0x40d228 ExitWindowsEx
 0x40d22c DispatchMessageA
 0x40d230 DestroyWindow
 0x40d234 CreateWindowExA
 0x40d238 CallWindowProcA
 0x40d23c CharPrevA
comctl32.dll
 0x40d244 InitCommonControls
advapi32.dll
 0x40d24c AdjustTokenPrivileges

EAT(Export Address Table) is none


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