MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f52e2e5f9d2c8d7aa9dff68ae66fae931e4fdf77d76aec165b261b6fbe282392. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.
Database Entry
RemcosRAT
Vendor detections: 12
Maldoc score: 4
| SHA256 hash: | f52e2e5f9d2c8d7aa9dff68ae66fae931e4fdf77d76aec165b261b6fbe282392 |
|---|---|
| SHA3-384 hash: | 4539cd4473ba97ad8dc276055a6f431898bf8794d22947fdd329853afd59341f95b6c19f87c38398d621dd794c48c1c0 |
| SHA1 hash: | cf7e8b3b67c06c9e2d4b9c7f9823007020db1678 |
| MD5 hash: | fd52776a26a9c7ca25c6d77435f05360 |
| humanhash: | vermont-sad-sad-cup |
| File name: | Quotation.xls |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 1'298'432 bytes |
| First seen: | 2025-03-24 12:03:53 UTC |
| Last seen: | 2025-03-25 11:45:48 UTC |
| File type: | |
| MIME type: | application/vnd.ms-excel |
| ssdeep | 24576:KKWmHNSyAZ0F17Oh1B4GMBXZ1ijlZgZrU5ag3JqR/fOqvNZlpxPerEC55:KM7oHypIR2IagwHjNPba |
| TLSH | T18455230775CED303E03E62B46F9385A529447C086B1AC64723C97B6EB2367316BD372A |
| TrID | 46.5% (.XLS) Microsoft Excel sheet (alternate) (56500/1/4) 26.7% (.XLS) Microsoft Excel sheet (32500/1/3) 20.1% (.XLS) Microsoft Excel sheet (alternate) (24500/1/2) 6.5% (.) Generic OLE2 / Multistream Compound (8000/1) |
| Magika | xls |
| Reporter | |
| Tags: | cve-2017-0199 RemcosRAT xls |
Office OLE Information
This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.
OLE id
| Maldoc score: 4 |
OLE dump
MalwareBazaar was able to identify 15 sections in this file using oledump:
| Section ID | Section size | Section name |
|---|---|---|
| 1 | 114 bytes | CompObj |
| 2 | 244 bytes | DocumentSummaryInformation |
| 3 | 200 bytes | SummaryInformation |
| 4 | 99 bytes | MBD004D1F3F/CompObj |
| 5 | 669087 bytes | MBD004D1F3F/Package |
| 6 | 304 bytes | MBD004D1F40/Ole |
| 7 | 605288 bytes | Workbook |
| 8 | 525 bytes | _VBA_PROJECT_CUR/PROJECT |
| 9 | 104 bytes | _VBA_PROJECT_CUR/PROJECTwm |
| 10 | 977 bytes | _VBA_PROJECT_CUR/VBA/Sheet1 |
| 11 | 977 bytes | _VBA_PROJECT_CUR/VBA/Sheet2 |
| 12 | 977 bytes | _VBA_PROJECT_CUR/VBA/Sheet3 |
| 13 | 985 bytes | _VBA_PROJECT_CUR/VBA/ThisWorkbook |
| 14 | 2644 bytes | _VBA_PROJECT_CUR/VBA/_VBA_PROJECT |
| 15 | 553 bytes | _VBA_PROJECT_CUR/VBA/dir |
OLE vba
MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:
| Type | Keyword | Description |
|---|---|---|
| Suspicious | Hex Strings | Hex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all) |
Intelligence
File Origin
NLVendor Threat Intelligence
Result
Behaviour
Result
Payload URLs
Behaviour
Document image
Result
Behaviour
Result
Behaviour
YARA Signatures
MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.
| Rule name: | informational_win_ole_protected |
|---|---|
| Author: | Jeff White (karttoon@gmail.com) @noottrak |
| Description: | Identify OLE Project protection within documents. |
| Rule name: | Suspicious_Latam_MSI_and_ZIP_Files |
|---|---|
| Author: | eremit4, P4nd3m1cb0y |
| Description: | Detects suspicious .msi and .zip files used in Latam banking trojan campaigns. |
| Rule name: | Sus_Obf_Enc_Spoof_Hide_PE |
|---|---|
| Author: | XiAnzheng |
| Description: | Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP) |
| Rule name: | XLS_STRINGS |
|---|---|
| Author: | somedieyoungZZ |
| Description: | Detect Strings targeting Bangladesh |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
BLint
The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.
Findings
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (HIGH_ENTROPY_VA) | high |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| AUTH_API | Manipulates User Authorization | advapi32.dll::AllocateAndInitializeSid advapi32.dll::FreeSid advapi32.dll::GetSidSubAuthority advapi32.dll::GetSidSubAuthorityCount advapi32.dll::IsValidSid |
| COM_BASE_API | Can Download & Execute components | ole32.dll::CLSIDFromProgID ole32.dll::CoCreateInstance |
| MULTIMEDIA_API | Can Play Multimedia | gdi32.dll::StretchDIBits |
| SECURITY_BASE_API | Uses Security Base API | advapi32.dll::CheckTokenMembership advapi32.dll::GetSidIdentifierAuthority |
| SHELL_API | Manipulates System Shell | shell32.dll::ShellExecuteW shell32.dll::SHGetFileInfoW |
| WIN32_PROCESS_API | Can Create Process and Threads | kernel32.dll::CreateProcessW winhttp.dll::WinHttpCloseHandle kernel32.dll::CloseHandle kernel32.dll::CreateThread |
| WIN_BASE_API | Uses Win Base API | kernel32.dll::FindFirstVolumeW kernel32.dll::FindNextVolumeW kernel32.dll::LoadLibraryA kernel32.dll::LoadLibraryExW kernel32.dll::LoadLibraryW kernel32.dll::GetDriveTypeW |
| WIN_BASE_IO_API | Can Create Files | kernel32.dll::CopyFileW kernel32.dll::CreateDirectoryW kernel32.dll::CreateFileW kernel32.dll::CreateFileMappingW kernel32.dll::DeleteFileW kernel32.dll::MoveFileW |
| WIN_BASE_USER_API | Retrieves Account Information | kernel32.dll::GetComputerNameW advapi32.dll::GetUserNameW advapi32.dll::LookupAccountNameW kernel32.dll::QueryDosDeviceW |
| WIN_HTTP_API | Uses HTTP services | winhttp.dll::WinHttpAddRequestHeaders winhttp.dll::WinHttpConnect winhttp.dll::WinHttpGetIEProxyConfigForCurrentUser winhttp.dll::WinHttpGetProxyForUrl winhttp.dll::WinHttpOpenRequest winhttp.dll::WinHttpOpen |
| WIN_REG_API | Can Manipulate Windows Registry | advapi32.dll::RegConnectRegistryW advapi32.dll::RegCreateKeyExW advapi32.dll::RegDeleteKeyW advapi32.dll::RegLoadKeyW advapi32.dll::RegOpenKeyExA advapi32.dll::RegOpenKeyExW |
| WIN_USER_API | Performs GUI Actions | user32.dll::ActivateKeyboardLayout user32.dll::CreateMenu user32.dll::EmptyClipboard user32.dll::FindWindowExW user32.dll::FindWindowW user32.dll::OpenClipboard |
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