remcos | tmpm333bdbs

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General

Target
tmpm333bdbs
Size 1.4MB
Sample260601-13ptjsf19v
SHA256 7677843a76323663063dc850d3b37baddb549afb037b06b8c0c2f26aa76e89bc
MD5 ccee88276361c76d833b54ffaaf5b4fa
SHA1 91c02a8e231dd55500e2e896c698ed4d4cd1b37a
SHA512 5e62cdca8779491308b61b04f5aaa3a783019a2cdf9213350f661c66abf31c7fd426525ef56f0a941cbb8d83757aa58a5893526b67f12166bcd3164b7775ac0c
SSDEEP 12288:u6sM9oIoH10er5+nKL1Jer5+nqA1YaL8i0DMUNLtG4+tbQIzKYZLwwmer5+n:YeolH1GAVDKUTbQIzFLw
TLSH
T19665F657EB815AE8F69D09366B584150DB2EF221AB4F2360746C420CCF8738B8F65E7D
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

host rat remcos

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

lalalalalaalal.fr.to:2404
tdegreenffields.duckdns.org:2404

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
sock.exe
copy_folder
socks
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
remcos_numnuqorsziptly
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

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
tmpm333bdbs

File Explorer

tmpm333bdbs

.exe 1.4MB

tmpm333bdbs

IMPHASH d3a62971944197f0701c7049a9c739d1
SHA256 7677843a76323663063dc850d3b37baddb549afb037b06b8c0c2f26aa76e89bc
MD5 ccee88276361c76d833b54ffaaf5b4fa
SHA1 91c02a8e231dd55500e2e896c698ed4d4cd1b37a
SHA512 5e62cdca8779491308b61b04f5aaa3a783019a2cdf9213350f661c66abf31c7fd426525ef56f0a941cbb8d83757aa58a5893526b67f12166bcd3164b7775ac0c
SSDEEP 12288:u6sM9oIoH10er5+nKL1Jer5+nqA1YaL8i0DMUNLtG4+tbQIzKYZLwwmer5+n:YeolH1GAVDKUTbQIzFLw
TLSH
T19665F657EB815AE8F69D09366B584150DB2EF221AB4F2360746C420CCF8738B8F65E7D
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

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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?rfind@?$basic_string@GU?$char_traits@G@std@@V?$allocator@G@2@@std@@QBEIGI@Z ?npos@?$basic_string@GU?$char_traits@G@std@@V?$allocator@G@2@@std@@2IB ?find@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QBEIPBDII@Z ??0Init@ios_base@std@@QAE@XZ ??1Init@ios_base@std@@QAE@XZ ??0_Winit@std@@QAE@XZ ??1_Winit@std@@QAE@XZ ?find@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QBEIABV12@I@Z ?find_last_of@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QBEIPBDI@Z ??Hstd@@YA?AV?$basic_string@GU?$char_traits@G@std@@V?$allocator@G@2@@0@PBGABV10@@Z ??Y?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAEAAV01@D@Z ??Hstd@@YA?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@0@DABV10@@Z ?rfind@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QBEIDI@Z ?find@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QBEIDI@Z ?begin@?$basic_string@GU?$char_traits@G@std@@V?$allocator@G@2@@std@@QBEPBGXZ ?end@?$basic_string@GU?$char_traits@G@std@@V?$allocator@G@2@@std@@QBEPBGXZ ?length@?$basic_string@GU?$char_traits@G@std@@V?$allocator@G@2@@std@@QBEIXZ ??Bios_base@std@@QBEPAXXZ ?assign@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAEAAV12@PBDI@Z ??6std@@YAAAV?$basic_ostream@DU?$char_traits@D@std@@@0@AAV10@PBD@Z ?find@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QBEIPBDI@Z ??0?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAE@IDABV?$allocator@D@1@@Z ??8std@@YA_NABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@0@0@Z ??0?$basic_ofstream@DU?$char_traits@D@std@@@std@@QAE@PBDH@Z ?is_open@?$basic_ofstream@DU?$char_traits@D@std@@@std@@QBE_NXZ ?data@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QBEPBDXZ ??8std@@YA_NABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@0@PBD@Z ??0logic_error@std@@QAE@ABV01@@Z ??0out_of_range@std@@QAE@ABV01@@Z ??1out_of_range@std@@UAE@XZ 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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

Name

.text

Size

60KB

Virtual Size

59KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

20KB

Virtual Size

18KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

4KB

Virtual Size

3KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rsrc

Size

4KB

Virtual Size

3KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

hVZDWUTu

Size

64KB

Virtual Size

63KB

Characteristics

Name

CmmwiGpB

Size

4KB

Virtual Size

3KB

Characteristics

Name

sJQLCrVx

Size

4KB

Virtual Size

3KB

Characteristics

Name

eStpWLwg

Size

96KB

Virtual Size

92KB

Characteristics

Name

GAzlZDmH

Size

1.0MB

Virtual Size

1.0MB

Characteristics

Name

axVJJQuK

Size

72KB

Virtual Size

68KB

Characteristics

Name

vYNGJURX

Size

4KB

Virtual Size

548B

Characteristics

Name

FxbRTZNf

Size

8KB

Virtual Size

6KB

Characteristics

Name

RGDdeIwK

Size

4KB

Virtual Size

903B

Characteristics

Name

qlgJKyEP

Size

20KB

Virtual Size

19KB

Characteristics

Sharing

General

Malware Config

Extracted

Signatures

File Explorer

tmpm333bdbs

kernel32

user32

gdi32

advapi32

shell32

msvcp60

msvcrt

winmm

shlwapi

ws2_32

urlmon

gdiplus

wininet

generic