remcos | 2026-09-23_99d9f58199e7421af5c5e455ee40c103_elex_remcos_remocs_wannacry

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General

Target
2026-09-23_99d9f58199e7421af5c5e455ee40c103_elex_remcos_remocs_wannacry
Size 92KB
Sample260924-fxfcpsef62
SHA256 5f94761b9216675b862b819e9890b99f69717c7f8f509e6e0a0c03a2fb79ecce
MD5 99d9f58199e7421af5c5e455ee40c103
SHA1 aafc0ab0b7b0394a59f4ca8f355d6720cfd6c68a
SHA512 8a7865c3636e4e0169eb2fd3e8ce4c9766d08504c98c2b1b558e769c94b6aa5f366500f9e2de5b8e9e5d2ddd94d2b2a2e98f128b47b64c871987e7e7560e9550
SSDEEP 1536:4hhW0YTGZWdVseJxaM9kraLdV2QkQ1TbPX8IHOCkIsI4ESHNTh9E+JP19qkP60rq:ehzYTGWVvJ8f2v1TbPzuMsIFSHNThy+u
TLSH
T1B693D813FA4AD0B2E46591F145426F32CEBCBC3636492173D38FCA41AD79892D416EAE
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

host rat remcos

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

apio2015.org:443
malware.apio2015.org:443

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
remcos.exe
copy_folder
remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
remcos_iblyukryefaxcwf
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
startup_value
remcos
take_screenshot_option
false
take_screenshot_time
5

Signatures

Family: Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

detects Windows exceutables potentially bypassing UAC using eventvwr.exe 1 IoCs

resource	yara_rule
sample	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2026-09-23_99d9f58199e7421af5c5e455ee40c103_elex_remcos_remocs_wannacry

File Explorer

2026-09-23_99d9f58199e7421af5c5e455ee40c103_elex_remcos_remocs_wannacry

.exe 92KB

2026-09-23_99d9f58199e7421af5c5e455ee40c103_elex_remcos_remocs_wannacry

IMPHASH d3a62971944197f0701c7049a9c739d1
SHA256 5f94761b9216675b862b819e9890b99f69717c7f8f509e6e0a0c03a2fb79ecce
MD5 99d9f58199e7421af5c5e455ee40c103
SHA1 aafc0ab0b7b0394a59f4ca8f355d6720cfd6c68a
SHA512 8a7865c3636e4e0169eb2fd3e8ce4c9766d08504c98c2b1b558e769c94b6aa5f366500f9e2de5b8e9e5d2ddd94d2b2a2e98f128b47b64c871987e7e7560e9550
SSDEEP 1536:4hhW0YTGZWdVseJxaM9kraLdV2QkQ1TbPX8IHOCkIsI4ESHNTh9E+JP19qkP60rq:ehzYTGWVvJ8f2v1TbPzuMsIFSHNThy+u
TLSH
T1B693D813FA4AD0B2E46591F145426F32CEBCBC3636492173D38FCA41AD79892D416EAE
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

64904

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LINE_NUMS_STRIPPED IMAGE_FILE_LOCAL_SYMS_STRIPPED IMAGE_FILE_32BIT_MACHINE

PDB paths

kernel32

GetModuleFileNameA GetLongPathNameA CreateMutexA OpenMutexA Process32Next Process32First CreateToolhelp32Snapshot SizeofResource LockResource LoadResource FindResourceA GetLocaleInfoA Process32NextW Process32FirstW lstrlenA GetDriveTypeA CreateProcessA GetTickCount GlobalUnlock GlobalLock GlobalAlloc WinExec GetCurrentProcessId CreateDirectoryW CopyFileA GetFileAttributesW GetLogicalDriveStringsA GetCurrentProcess ResumeThread SetThreadContext WriteProcessMemory VirtualAllocEx ReadProcessMemory GetThreadContext VirtualAlloc GlobalFree LocalAlloc TerminateProcess ReadFile PeekNamedPipe GetStdHandle CreatePipe OpenProcess DuplicateHandle GetCurrentThread lstrcpynA ExitProcess AllocConsole GetStartupInfoA ExpandEnvironmentStringsA FindFirstFileA FindNextFileA GetLastError LoadLibraryA GetProcAddress CreateFileMappingA MapViewOfFileEx DeleteFileA RemoveDirectoryA CloseHandle GetFileAttributesA SetFileAttributesA SetEvent TerminateThread FindFirstFileW FindNextFileW FindClose GetLocalTime CreateEventA WaitForSingleObject CreateDirectoryA ExitThread Sleep GetModuleHandleA DeleteFileW CreateThread

user32

GetWindowTextLengthA GetForegroundWindow UnhookWindowsHookEx CloseClipboard GetClipboardData OpenClipboard SetClipboardData EmptyClipboard ExitWindowsEx MessageBoxA GetKeyboardLayoutNameA GetWindowThreadProcessId ShowWindow CloseWindow GetWindowTextA GetWindowTextW EnumWindows SendInput CreateWindowExA RegisterClassExA AppendMenuA CreatePopupMenu TrackPopupMenu SetForegroundWindow GetCursorPos DefWindowProcA GetKeyState CallNextHookEx SetWindowsHookExA GetMessageA TranslateMessage GetKeyboardLayout FindWindowA DispatchMessageA IsWindowVisible

gdi32

CreateDCA CreateCompatibleDC GetDeviceCaps CreateCompatibleBitmap SelectObject StretchBlt GetObjectA GetDIBits DeleteObject DeleteDC

advapi32

OpenProcessToken LookupPrivilegeValueA AdjustTokenPrivileges RegCreateKeyExA RegQueryInfoKeyA RegEnumKeyExA RegEnumValueA RegDeleteValueA RegCreateKeyA RegSetValueExA RegOpenKeyExA RegDeleteKeyA RegCloseKey RegQueryValueExA GetUserNameW

shell32

ShellExecuteA ExtractIconA Shell_NotifyIconA ShellExecuteExA ShellExecuteW

msvcp60

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?close@?$basic_fstream@DU?$char_traits@D@std@@@std@@QAEXXZ ?write@?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEAAV12@PBDH@Z ?seekp@?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEAAV12@JW4seekdir@ios_base@2@@Z ??0?$basic_fstream@DU?$char_traits@D@std@@@std@@QAE@PBDH@Z ??Hstd@@YA?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@0@ABV10@PBD@Z ??Hstd@@YA?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@0@ABV10@D@Z ?size@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QBEIXZ ??Y?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAEAAV01@ABV01@@Z ?substr@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QBE?AV12@II@Z ?npos@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@2IB ?length@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QBEIXZ ??9std@@YA_NABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@0@PBD@Z ?empty@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QBE_NXZ 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??_D?$basic_ifstream@DU?$char_traits@D@std@@@std@@QAEXXZ ?close@?$basic_ifstream@DU?$char_traits@D@std@@@std@@QAEXXZ ?read@?$basic_istream@DU?$char_traits@D@std@@@std@@QAEAAV12@PADH@Z ?seekg@?$basic_istream@DU?$char_traits@D@std@@@std@@QAEAAV12@JW4seekdir@ios_base@2@@Z ?tellg@?$basic_istream@DU?$char_traits@D@std@@@std@@QAE?AV?$fpos@H@2@XZ ?is_open@?$basic_ifstream@DU?$char_traits@D@std@@@std@@QBE_NXZ ??0?$basic_ifstream@DU?$char_traits@D@std@@@std@@QAE@PBDH@Z ??_D?$basic_ofstream@DU?$char_traits@D@std@@@std@@QAEXXZ ?close@?$basic_ofstream@DU?$char_traits@D@std@@@std@@QAEXXZ ??6std@@YAAAV?$basic_ostream@DU?$char_traits@D@std@@@0@AAV10@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@0@@Z

msvcrt

_wrename _controlfp __set_app_type __p__fmode __p__commode _adjust_fdiv __setusermatherr _initterm __getmainargs _acmdln _XcptFilter _exit _onexit __dllonexit ??1type_info@@UAE@XZ _iob freopen srand rand mbstowcs realloc _itoa sprintf getenv toupper tolower wcscmp printf strncmp malloc free _EH_prolog __CxxFrameHandler time localtime strftime puts atoi _ftol ??2@YAPAXI@Z _except_handler3 exit ??0exception@@QAE@ABV0@@Z _CxxThrowException

winmm

waveInOpen waveInStop waveInClose waveInAddBuffer waveInPrepareHeader waveInUnprepareHeader waveInStart

shlwapi

PathFileExistsA

ws2_32

htons gethostbyname closesocket socket send WSAGetLastError connect recv WSAStartup

urlmon

URLDownloadToFileA

gdiplus

GdipLoadImageFromStreamICM GdipDisposeImage GdipCloneImage GdipAlloc GdipSaveImageToStream GdipSaveImageToFile GdipLoadImageFromStream GdiplusStartup GdipGetImageEncoders GdipFree GdipGetImageEncodersSize

wininet

InternetCloseHandle InternetOpenUrlA InternetOpenA InternetReadFile