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Report - build.exe

Malicious Library DGA DNS Socket Http API Internet API ScreenShot AntiDebug AntiVM PE File PE32 OS Processor Check
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  2. Detailed report
ScreenShot
Created 2021.07.04 11:08 Machine s1_win7_x6402
Filename build.exe
Type PE32 executable (GUI) Intel 80386, for MS Windows
AI Score
6
 Behavior Score
12.4
ZERO API file : clean
VT API (file) 26 detected (AIDetect, malware2, malicious, high confidence, Unsafe, Save, confidence, 100%, Attribute, HighConfidence, Stop, Lockbit, Azorult, score, InstallCore, MachineLearning, Anomalous, Generic@ML, RDML, SbQtGbO6zptak1TDyz8yMw, Static AI, Malicious PE, susgen, GenKryptik, ERHN, CrypterX, QVM10)
md5 f41fd95f121782d8d2f4689ef056d293
sha256 4b1f8619599a195d1287cbfa9fa9fe2b9c428b40cfd5b5b712acf7d12bf0ef13
ssdeep 12288:Fv9GfAXoRSiavuSy34jDq/70uViVkYvghNYl3PurYE4VNgvGZDr5BLcMc+plaA:FlvXmveu734s7RAVDYhMPzssLtDYA
imphash 0760b4351aea3a041b7d697c921cb850
impfuzzy 24:IkrJvfrM6/ptt0GhNOovTnDc/J3IUcfkvYyvEFQ8OT4Qlw0EjMMGn:vBr1ptt0GOhFcfIpncQBV
  Network IP location

Signature (27cnts)

Level Description
danger Executed a process and injected code into it
warning File has been identified by 26 AntiVirus engines on VirusTotal as malicious
watch Allocates execute permission to another process indicative of possible code injection
watch Communicates with host for which no DNS query was performed
watch Installs itself for autorun at Windows startup
watch Potential code injection by writing to the memory of another process
watch Resumed a suspended thread in a remote process potentially indicative of process injection
watch Tries to unhook Windows functions monitored by Cuckoo
watch Used NtSetContextThread to modify a thread in a remote process indicative of process injection
watch Uses suspicious command line tools or Windows utilities
notice Allocates read-write-execute memory (usually to unpack itself)
notice An executable file was downloaded by the process build.exe
notice Creates executable files on the filesystem
notice Drops a binary and executes it
notice Drops an executable to the user AppData folder
notice Foreign language identified in PE resource
notice One or more potentially interesting buffers were extracted
notice Performs some HTTP requests
notice Potentially malicious URLs were found in the process memory dump
notice Resolves a suspicious Top Level Domain (TLD)
notice The binary likely contains encrypted or compressed data indicative of a packer
notice Yara rule detected in process memory
info Checks if process is being debugged by a debugger
info One or more processes crashed
info Queries for the computername
info The file contains an unknown PE resource name possibly indicative of a packer
info This executable has a PDB path

Rules (21cnts)

Level Name Description Collection
watch Malicious_Library_Zero Malicious_Library binaries (download)
notice Network_DGA Communication using DGA memory
notice Network_DNS Communications use DNS memory
notice Network_TCP_Socket Communications over RAW Socket memory
notice ScreenShot Take ScreenShot memory
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 DebuggerCheck__GlobalFlags (no description) memory
info DebuggerCheck__QueryInfo (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 (download)
info IsPE32 (no description) 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 SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory

Network (8cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://dgos.top/dl/build2.exe
whois
SG Alibaba (US) Technology Co., Ltd. 8.209.113.181 clean
http://astdg.top/nddddhsspen6/get.php?pid=CD20CF071BA7C05D5F5E6CAF42496E78&first=true
whois
KR SK Broadband Co Ltd 58.121.235.119 clean
astdg.top
whois
AR Telefonica de Argentina 179.38.56.56 clean
dgos.top
whois
SG Alibaba (US) Technology Co., Ltd. 8.209.113.181 clean
api.2ip.ua
whois
UA Volia 77.123.139.190 clean
179.38.56.56
whois
AR Telefonica de Argentina 179.38.56.56 clean
8.209.113.181
whois
SG Alibaba (US) Technology Co., Ltd. 8.209.113.181 clean
77.123.139.190
whois
UA Volia 77.123.139.190 clean

Suricata ids

ET POLICY External IP Address Lookup DNS Query
SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)
ET INFO TLS Handshake Failure
ET DNS Query to a *.top domain - Likely Hostile
ET USER_AGENTS Suspicious User Agent (Microsoft Internet Explorer)
ET INFO HTTP Request to a *.top domain
ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
ET HUNTING SUSPICIOUS Firesale gTLD EXE DL with no Referer June 13 2016
ET POLICY PE EXE or DLL Windows file download HTTP
ET HUNTING Possible EXE Download From Suspicious TLD

PE API

IAT(Import Address Table) Library

KERNEL32.dll
 0x401008 WriteConsoleInputW
 0x40100c GetConsoleAliasesW
 0x401010 OpenEventW
 0x401014 HeapAlloc
 0x401018 GetUserDefaultLangID
 0x40101c GetGeoInfoW
 0x401020 VirtualProtect
 0x401024 HeapUnlock
 0x401028 GetACP
 0x40102c CreateMutexA
 0x401030 ReleaseMutex
 0x401034 GetAtomNameW
 0x401038 CreateJobObjectW
 0x40103c GetTempPathA
 0x401040 GetProcessHeap
 0x401044 CompareStringA
 0x401048 GlobalAlloc
 0x40104c TerminateProcess
 0x401050 GetCurrentProcess
 0x401054 UnhandledExceptionFilter
 0x401058 SetUnhandledExceptionFilter
 0x40105c IsDebuggerPresent
 0x401060 RaiseException
 0x401064 RtlUnwind
 0x401068 GetLastError
 0x40106c HeapReAlloc
 0x401070 GetCommandLineA
 0x401074 GetStartupInfoA
 0x401078 HeapFree
 0x40107c GetModuleHandleW
 0x401080 GetProcAddress
 0x401084 TlsGetValue
 0x401088 TlsAlloc
 0x40108c TlsSetValue
 0x401090 TlsFree
 0x401094 InterlockedIncrement
 0x401098 SetLastError
 0x40109c GetCurrentThreadId
 0x4010a0 InterlockedDecrement
 0x4010a4 DeleteCriticalSection
 0x4010a8 LeaveCriticalSection
 0x4010ac EnterCriticalSection
 0x4010b0 HeapCreate
 0x4010b4 VirtualFree
 0x4010b8 VirtualAlloc
 0x4010bc Sleep
 0x4010c0 ExitProcess
 0x4010c4 WriteFile
 0x4010c8 GetStdHandle
 0x4010cc GetModuleFileNameA
 0x4010d0 SetHandleCount
 0x4010d4 GetFileType
 0x4010d8 SetFilePointer
 0x4010dc FreeEnvironmentStringsA
 0x4010e0 GetEnvironmentStrings
 0x4010e4 FreeEnvironmentStringsW
 0x4010e8 WideCharToMultiByte
 0x4010ec GetEnvironmentStringsW
 0x4010f0 QueryPerformanceCounter
 0x4010f4 GetTickCount
 0x4010f8 GetCurrentProcessId
 0x4010fc GetSystemTimeAsFileTime
 0x401100 GetCPInfo
 0x401104 GetOEMCP
 0x401108 IsValidCodePage
 0x40110c HeapSize
 0x401110 InitializeCriticalSectionAndSpinCount
 0x401114 MultiByteToWideChar
 0x401118 LoadLibraryA
 0x40111c SetStdHandle
 0x401120 GetLocaleInfoA
 0x401124 GetStringTypeA
 0x401128 GetStringTypeW
 0x40112c LCMapStringA
 0x401130 LCMapStringW
 0x401134 GetConsoleCP
 0x401138 GetConsoleMode
 0x40113c FlushFileBuffers
 0x401140 CloseHandle
 0x401144 WriteConsoleA
 0x401148 GetConsoleOutputCP
 0x40114c WriteConsoleW
 0x401150 CreateFileA
ADVAPI32.dll
 0x401000 CloseEventLog

EAT(Export Address Table) is none


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