MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b8b40abd2fc17b67fb15d35362d2edca099d02f9489171733b3abfbd971c6a5d. 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: 19
| SHA256 hash: | b8b40abd2fc17b67fb15d35362d2edca099d02f9489171733b3abfbd971c6a5d |
|---|---|
| SHA3-384 hash: | 71088d16b8925876f23b458092a628b6f0a043f5ae8ec02f13c8c7e73046725be06849da01b7b37c410c6b52cf689149 |
| SHA1 hash: | 35c7982380a8a6cf63738dcad7c101d3e12da7e2 |
| MD5 hash: | e2ec75d14c46a1a70c156ed58c4dd559 |
| humanhash: | floor-wolfram-purple-salami |
| File name: | SecuriteInfo.com.Trojan.PackedNET.3358.8143.1554 |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 931'328 bytes |
| First seen: | 2025-06-30 08:24:14 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'453 x Formbook, 12'202 x SnakeKeylogger) |
| ssdeep | 24576:XDbbPEbEEh7u0iNWniHOLoHySgLeHWmwKzrFWjbS:zbbMAEh7hi2gt2mw4rFk |
| Threatray | 4'132 similar samples on MalwareBazaar |
| TLSH | T1981522097A75885BC2A717F12E31E2B253BD8DCC6101E792AFD67CFB34A1B116980B53 |
| TrID | 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10522/11/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9) |
| Magika | pebin |
| Reporter |  SecuriteInfoCom |
| Tags: | exe RemcosRAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
559
Origin country :
FRVendor Threat Intelligence
Malware family:
remcos
ID:
1
File name:
SecuriteInfo.com.Trojan.PackedNET.3358.8143.1554
Verdict:
Malicious activity
Analysis date:
2025-06-30 08:29:07 UTC
Tags:
remcos rat remote phishing netreactor
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Verdict:
Clean
Score:
89.1%
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Setting a keyboard event handler
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
packed packed packer_detected vbnet
Verdict:
Malicious
Labled as:
Genie.8DN.Generic
Malware family:
REMCOS
Verdict:
Malicious
Score:
100%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable PE (Portable Executable) Win 32 Exe x86
Detection:
remcos
Verdict:
Malicious
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2025-06-30 07:09:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
26 of 38 (68.42%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
unc_loader_037
remcos
Similar samples:
+ 4'122 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos botnet:boxx discovery rat
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Remcos
Remcos family
Malware Config
C2 Extraction:
abby.work.gd:4132
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
b8b40abd2fc17b67fb15d35362d2edca099d02f9489171733b3abfbd971c6a5d
MD5 hash:
e2ec75d14c46a1a70c156ed58c4dd559
SHA1 hash:
35c7982380a8a6cf63738dcad7c101d3e12da7e2
SH256 hash:
19bb7984811af5c7b837a18a3bbd096724c47a0e2885eadb9ff1a8933757718a
MD5 hash:
b60bff775d77b9e9af6f9a7ae5947d98
SHA1 hash:
11c716371d54786c1d4ab5688ab69a71cc5201ca
SH256 hash:
5b7c660f1afeea4839ff4fdaff5d272e8b1fb0575906f194b672425bbe673d50
MD5 hash:
189aeafcc7f091e404ec777e31ff4010
SHA1 hash:
1c12589f3d089f6b1e73c87803caf1f2a57b4ea4
Detections:
win_remcos_w0
win_remcos_auto
Remcos
malware_windows_remcos_rat
win_remcos_rat_unpacked
INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
SH256 hash:
73ad6497a317d96ff6cec4b14085cd1e267ebe24b346fbb2ebd69fcb932da327
MD5 hash:
6883235df10e3dd124cc1bb3e70e2f3e
SHA1 hash:
74cc8860a30e71a3a9e78e71ded10929f9a6585a
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
SUSP_OBF_NET_Reactor_Indicators_Jan24
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: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DetectEncryptedVariants |
|---|---|
| Author: | Zinyth |
| Description: | Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded |
| Rule name: | FreddyBearDropper |
|---|---|
| Author: | Dwarozh Hoshiar |
| Description: | Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip. |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | iexplorer_remcos |
|---|---|
| Author: | iam-py-test |
| Description: | Detect iexplorer being taken over by Remcos |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer |
|---|---|
| Author: | ditekSHen |
| Description: | detects Windows exceutables potentially bypassing UAC using eventvwr.exe |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_detect_tls_callbacks |
|---|
| Rule name: | pe_imphash |
|---|
| Rule name: | RANSOMWARE |
|---|---|
| Author: | ToroGuitar |
| Rule name: | Remcos |
|---|---|
| Author: | kevoreilly |
| Description: | Remcos Payload |
| Rule name: | remcos_ |
|---|---|
| Author: | Michelle Khalil |
| Description: | This rule detects unpacked remcos malware samples. |
| Rule name: | REMCOS_RAT_variants |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| 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 |
| Rule name: | Windows_Trojan_Remcos_b296e965 |
|---|---|
| Author: | Elastic Security |
| Reference: | https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set |
| Rule name: | win_remcos_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Detects win.remcos. |
| Rule name: | win_remcos_rat_unpacked |
|---|---|
| Author: | Matthew @ Embee_Research |
| Description: | Detects strings present in remcos rat Samples. |
| Rule name: | win_remcos_w0 |
|---|---|
| Author: | Matthew @ Embee_Research |
| Description: | Detects strings present in remcos rat Samples. |
| Rule name: | yarahub_win_remcos_rat_unpacked_aug_2023 |
|---|---|
| Author: | Matthew @ Embee_Research |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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