MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 c8401fbd58fa8fff63277c5fb63ce13e95769a2e8e7aed9baec1d05e516274af. 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: 11
| SHA256 hash: | c8401fbd58fa8fff63277c5fb63ce13e95769a2e8e7aed9baec1d05e516274af |
|---|---|
| SHA3-384 hash: | 68769ec1cc55edab03979bc4721cfcb88e699feb3d22111462aabfd1accd590960f4b9db897be567bb989584075fa1be |
| SHA1 hash: | 0a1543b038c270be7025a54176c7f7925e17f13e |
| MD5 hash: | d33ceb45062ed96ce2d49518c063724e |
| humanhash: | wisconsin-delta-stream-arkansas |
| File name: | SecuriteInfo.com.W64.GenKryptik.HFPH.tr.21103.2929 |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 2'611'712 bytes |
| First seen: | 2025-08-13 03:14:43 UTC |
| Last seen: | 2025-08-13 04:16:28 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f66a9b081c6f6958817f37a0690cbc62 (1 x RemcosRAT, 1 x AgentTesla) |
| ssdeep | 49152:1GszSOU5YhDM6vfoEHbdhbKd5JorNtEKBbqWUBld5:kGHl7dO3orAK |
| Threatray | 57 similar samples on MalwareBazaar |
| TLSH | T12BC5BE15E3D845B8D96BDB74CA659333E67078464331D28F0A98D7462FB3EA09B3B312 |
| TrID | 48.7% (.EXE) Win64 Executable (generic) (10522/11/4) 23.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 9.3% (.EXE) OS/2 Executable (generic) (2029/13) 9.2% (.EXE) Generic Win/DOS Executable (2002/3) 9.2% (.EXE) DOS Executable Generic (2000/1) |
| Magika | pebin |
| Reporter |  SecuriteInfoCom |
| Tags: | exe RemcosRAT |
Intelligence
File Origin
# of uploads :
2
# of downloads :
61
Origin country :
FRVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
f56605c36000ade9d5ae6f1363f40b4195d999187b0fd1596c8ed1d18209c99b.zip
Verdict:
Suspicious activity
Analysis date:
2025-08-13 03:15:07 UTC
Tags:
arch-exec
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Clean
Score:
89.3%
Tags:
n/a
Result
Verdict:
Clean
Maliciousness:
Behaviour
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
adaptive-context crypto fingerprint microsoft_visual_cc packed remcos
Verdict:
Unknown
Score:
95%
Verdict:
Malware
File Type:
PE
Gathering data
Verdict:
Malicious
Threat:
Family.REMCOS
Threat name:
Win64.Backdoor.Remcos
Status:
Malicious
First seen:
2025-08-13 01:45:23 UTC
File Type:
PE+ (Dll)
AV detection:
20 of 38 (52.63%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 47 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos botnet:remotehost collection discovery persistence rat
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Remcos family
Malware Config
C2 Extraction:
212.162.149.164:443
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
c8401fbd58fa8fff63277c5fb63ce13e95769a2e8e7aed9baec1d05e516274af
MD5 hash:
d33ceb45062ed96ce2d49518c063724e
SHA1 hash:
0a1543b038c270be7025a54176c7f7925e17f13e
Malware family:
Remcos
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | BitcoinAddress |
|---|---|
| Author: | Didier Stevens (@DidierStevens) |
| Description: | Contains a valid Bitcoin address |
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerCheck__MemoryWorkingSet |
|---|---|
| Author: | Fernando Mercês |
| Description: | Anti-debug process memory working set size check |
| Reference: | http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/ |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_detect_tls_callbacks |
|---|
| Rule name: | RIPEMD160_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for RIPEMD-160 constants |
| Rule name: | SEH__vectored |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | SHA1_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA1 constants |
| Rule name: | Sus_CMD_Powershell_Usage |
|---|---|
| Author: | XiAnzheng |
| Description: | May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP) |
| 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: | ThreadControl__Context |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
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 (GUARD_CF) | high |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| SECURITY_BASE_API | Uses Security Base API | ADVAPI32.dll::AdjustTokenPrivileges |
| WIN32_PROCESS_API | Can Create Process and Threads | ADVAPI32.dll::OpenProcessToken KERNEL32.dll::OpenProcess KERNEL32.dll::VirtualAllocExNuma KERNEL32.dll::CloseHandle KERNEL32.dll::CreateThread |
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetSystemInfo KERNEL32.dll::GetCommandLineW |
| WIN_BASE_EXEC_API | Can Execute other programs | KERNEL32.dll::FreeConsole KERNEL32.dll::GetConsoleOutputCP |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::CreateDirectoryW KERNEL32.dll::CreateFileW |
| WIN_BASE_USER_API | Retrieves Account Information | ADVAPI32.dll::LookupPrivilegeValueW |
| WIN_BCRYPT_API | Can Encrypt Files | bcrypt.dll::BCryptCreateHash bcrypt.dll::BCryptDestroyHash bcrypt.dll::BCryptFinishHash bcrypt.dll::BCryptGenRandom bcrypt.dll::BCryptGetProperty bcrypt.dll::BCryptHashData |
| WIN_REG_API | Can Manipulate Windows Registry | ADVAPI32.dll::RegCreateKeyExW ADVAPI32.dll::RegOpenKeyExW ADVAPI32.dll::RegQueryValueExW ADVAPI32.dll::RegSetValueExW |
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