MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 523a09b4d2a3041cf4fa5de52aa73d3caa049147209faf3f3f854819d5ed5ffb. 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: 13
| SHA256 hash: | 523a09b4d2a3041cf4fa5de52aa73d3caa049147209faf3f3f854819d5ed5ffb |
|---|---|
| SHA3-384 hash: | 65451f5dc04822a144e9c4458a112c3062a569207b557ebe4f34c7e69027d1008511999d6bda5c72038e19bd27098353 |
| SHA1 hash: | 1319d41f073226557b1f7c2bdea6fb7805beba83 |
| MD5 hash: | 127ff02dd06b7a27643f92b173df0008 |
| humanhash: | romeo-edward-grey-lemon |
| File name: | 523a09b4d2a3041cf4fa5de52aa73d3caa049147209faf3f3f854819d5ed5ffb |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 920'520 bytes |
| First seen: | 2025-11-06 11:00:20 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | b34f154ec913d2d2c435cbd644e91687 (541 x GuLoader, 116 x RemcosRAT, 80 x EpsilonStealer) |
| ssdeep | 24576:Y3v04oR07lDO+IFqNeFv+7iIXgC0uN5hUI5iD1AG5nME5qJ:Y3DDO+Iggd+7BwC0uN071r5MEYJ |
| Threatray | 2'618 similar samples on MalwareBazaar |
| TLSH | T14B152301F740C866DCB2477005BEA36626A3BD1EA978071F238FBBEE67727C53019652 |
| TrID | 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10522/11/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4504/4/1) |
| Magika | pebin |
| Reporter |  adrian__luca |
| Tags: | exe RemcosRAT signed |
Code Signing Certificate
| Organisation: | tueiron |
|---|---|
| Issuer: | tueiron |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2025-10-13T04:34:26Z |
| Valid to: | 2026-10-13T04:34:26Z |
| Serial number: | 3028c0af74ad56b11863c9081c3a09ef3a3913d7 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 47ab93567a87ce419a190d46b2cbe63f929b66743124dcf03c7b0578c9bd0d4f |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
64
Origin country :
HUVendor Threat Intelligence
Malware family:
remcos
ID:
1
File name:
523a09b4d2a3041cf4fa5de52aa73d3caa049147209faf3f3f854819d5ed5ffb
Verdict:
Malicious activity
Analysis date:
2025-11-06 17:07:59 UTC
Tags:
rat remcos auto-reg
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
95.7%
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Searching for the window
Creating a file in the %AppData% subdirectories
Creating a file
Creating a file in the %temp% directory
Delayed reading of the file
Unauthorized injection to a recently created process
Restart of the analyzed sample
DNS request
Connection attempt
Sending a custom TCP request
Gathering data
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-20T17:48:00Z UTC
Last seen:
2025-11-08T00:11:00Z UTC
Hits:
~10000
Verdict:
Suspicious
Score:
84%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Threat name:
Win32.Backdoor.Remcos
Status:
Suspicious
First seen:
2025-10-20 21:38:30 UTC
File Type:
PE (Exe)
Extracted files:
43
AV detection:
21 of 38 (55.26%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
+ 2'608 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:guloader family:remcos discovery downloader persistence rat
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Guloader family
Guloader,Cloudeye
Remcos
Remcos family
Malware Config
C2 Extraction:
196.251.72.34:2404
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
523a09b4d2a3041cf4fa5de52aa73d3caa049147209faf3f3f854819d5ed5ffb
MD5 hash:
127ff02dd06b7a27643f92b173df0008
SHA1 hash:
1319d41f073226557b1f7c2bdea6fb7805beba83
SH256 hash:
86c8ee210e6611383a634dcb8c60455063ddae3d7adccbeacf3adf7bf2a46676
MD5 hash:
d2e45dd852a659e11897df573832f381
SHA1 hash:
19990ee627c95b6c18d3b5c5f0ec5c24791d0af5
SH256 hash:
c2f405d7402f815d0c3fadd9a50f0bbbb1bab9aa38fe347823478a2587299448
MD5 hash:
9625d5b1754bc4ff29281d415d27a0fd
SHA1 hash:
80e85afc5cccd4c0a3775edbb90595a1a59f5ce0
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_detect_tls_callbacks |
|---|
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | pe_no_import_table |
|---|---|
| Description: | Detect pe file that no import table |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.