MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a8b3a9ea280d776d79f038ff5c2b3b095d8e0c1b25df954bce598e0733d8149a. 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: 14
| SHA256 hash: | a8b3a9ea280d776d79f038ff5c2b3b095d8e0c1b25df954bce598e0733d8149a |
|---|---|
| SHA3-384 hash: | 747b6b66e6908a3ef3cced0bfe3795cc847debfeb16af71cdd6b3322f277f5137533bf2a53c38640ef0e2dc06a650ffd |
| SHA1 hash: | 49ec99e4128852b421803f799d305b4dcf500408 |
| MD5 hash: | 73b33ac9167356231cdf4b04261f6fcc |
| humanhash: | island-asparagus-timing-lithium |
| File name: | Sales Order.exe |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 319'568 bytes |
| First seen: | 2026-03-09 12:49:49 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 56a78d55f3f7af51443e58e0ce2fb5f6 (733 x GuLoader, 452 x Formbook, 295 x Loki) |
| ssdeep | 6144:53yztAAoo+seRCZBM4Glr86+dmg5aQSyR4NVJvPNoMP:53rAoWzZBoNLwUQSyR4NVJNP |
| TLSH | T133642305731AC037E6B20231483B6776CEA6DDEA68DE07270370B95EBC75B90DB6DA44 |
| TrID | 50.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 10.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 10.5% (.EXE) Win64 Executable (generic) (6522/11/2) 8.1% (.EXE) Win16 NE executable (generic) (5038/12/1) 7.2% (.EXE) Win32 Executable (generic) (4504/4/1) |
| Magika | pebin |
| dhash icon | c4dadadad2f492c2 (110 x GuLoader, 49 x RemcosRAT, 23 x VIPKeylogger) |
| Reporter |  James_inthe_box |
| Tags: | exe RemcosRAT signed |
Code Signing Certificate
| Organisation: | Yonside |
|---|---|
| Issuer: | Yonside |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2026-01-25T00:34:22Z |
| Valid to: | 2027-01-25T00:34:22Z |
| Serial number: | 5692b6c7debb8e66a69de093f2edb5587552d8f0 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 07276159ed3843b14e06fb0e007af5994e4aab0cbfffa4f2dc2d1f6a645ed35f |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
153
Origin country :
USVendor Threat Intelligence
Malware configuration found for:
NSIS
Details
Malware family:
remcos
ID:
1
File name:
_a8b3a9ea280d776d79f038ff5c2b3b095d8e0c1b25df954bce598e0733d8149a.exe
Verdict:
Malicious activity
Analysis date:
2026-03-09 12:51:30 UTC
Tags:
remcos rat auto-reg
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Guloader
Detection(s):
Verdict:
Malicious
Score:
99.1%
Tags:
remcos nsis
Verdict:
Malicious
File Type:
exe x32
Detections:
HEUR:Backdoor.Win32.Remcos.gen Trojan-Downloader.Win32.Minix.sb Trojan.Win32.Guloader.sb Trojan.NSIS.Makoob.sba
Verdict:
Unknown
Score:
99%
Verdict:
Malware
File Type:
PE
Gathering data
Verdict:
Malicious
Threat:
Family.REMCOS
Threat name:
Win32.Backdoor.Remcos
Status:
Suspicious
First seen:
2026-03-04 01:23:38 UTC
File Type:
PE (Exe)
Extracted files:
12
AV detection:
16 of 24 (66.67%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
remcos
Score:
10/10
Tags:
family:guloader family:remcos botnet:remotehost collection discovery downloader persistence rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Contacts third-party web service commonly abused for C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Detected Nirsoft tools
Guloader family
Guloader,Cloudeye
Remcos
Remcos family
Malware Config
C2 Extraction:
130.12.181.40:2404
Unpacked files
SH256 hash:
a8b3a9ea280d776d79f038ff5c2b3b095d8e0c1b25df954bce598e0733d8149a
MD5 hash:
73b33ac9167356231cdf4b04261f6fcc
SHA1 hash:
49ec99e4128852b421803f799d305b4dcf500408
SH256 hash:
8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8
MD5 hash:
cff85c549d536f651d4fb8387f1976f2
SHA1 hash:
d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e
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: | Detect_NSIS_Nullsoft_Installer |
|---|---|
| Author: | Obscurity Labs LLC |
| Description: | Detects NSIS installers by .ndata section + NSIS header string |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | shellcode |
|---|---|
| Author: | nex |
| Description: | Matched shellcode byte patterns |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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