MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 909b4092841b4056937777a197673e86be281f43db661ee636ccd73744015768. 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: 18
| SHA256 hash: | 909b4092841b4056937777a197673e86be281f43db661ee636ccd73744015768 |
|---|---|
| SHA3-384 hash: | f0b2c9ac529ad93fbffea5e56fe74bbe37159cf3637dd6921d6c59e9332fb701dc4492439bbb1206ba773bd0faadda61 |
| SHA1 hash: | 5539262df6253bb9958b115deb03147286e2e9f6 |
| MD5 hash: | 1a0d7a2a1e9ef04c516c7ac650ba0593 |
| humanhash: | friend-lion-mobile-hydrogen |
| File name: | z10Original-Copy.bat |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 884'745 bytes |
| First seen: | 2024-05-23 11:37:04 UTC |
| Last seen: | 2024-05-27 10:17:41 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| ssdeep | 12288:9RYME1O4s1ZQwyyUkb7Mb0ERfd31PS0aqqNNibhvFChjELzjAG+YFKxLJErKpfa:MrcZtUI7MQCF31PUnYvFClshCNEaa |
| TLSH | T139152306D7F85233F5AAA0718D89E1D26B32BB93CBD3C66E4400149F14864D4AEB7DF6 |
| TrID | 44.4% (.EXE) Win64 Executable (generic) (10523/12/4) 21.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 8.7% (.ICL) Windows Icons Library (generic) (2059/9) 8.5% (.EXE) OS/2 Executable (generic) (2029/13) 8.4% (.EXE) Generic Win/DOS Executable (2002/3) |
| Reporter |  FXOLabs |
| Tags: | bat exe RemcosRAT |
Intelligence
File Origin
# of uploads :
3
# of downloads :
359
Origin country :
BRVendor Threat Intelligence
Malware family:
remcos
ID:
1
File name:
909b4092841b4056937777a197673e86be281f43db661ee636ccd73744015768.exe
Verdict:
Malicious activity
Analysis date:
2024-05-23 11:37:38 UTC
Tags:
rat remcos remote keylogger evasion
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Verdict:
Malicious
Score:
96.5%
Link:
Tags:
Encryption Execution Generic Network Stealth Remcos
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Launching a process
Searching for synchronization primitives
Сreating synchronization primitives
Connection attempt
Sending a custom TCP request
Launching the default Windows debugger (dwwin.exe)
DNS request
Sending an HTTP GET request
Creating a file
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
masquerade overlay packed remcos
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Result
Threat name:
Remcos
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
AI detected suspicious sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Detected Remcos RAT
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Detection:
remcos
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Status:
Malicious
First seen:
2024-05-23 05:25:27 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
3
AV detection:
21 of 24 (87.50%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
remcos
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos botnet:remotehost rat
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Remcos
Malware Config
C2 Extraction:
91.214.78.17:2404
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
c56cf8f97d99943f278a6606edd18e0cc8120bb04b3950f3f6b9be11d14e689a
MD5 hash:
4da33722907a923930c559d4023d5eff
SHA1 hash:
2d96944b5bafb27683326a25ca433e14ef70215a
SH256 hash:
909b4092841b4056937777a197673e86be281f43db661ee636ccd73744015768
MD5 hash:
1a0d7a2a1e9ef04c516c7ac650ba0593
SHA1 hash:
5539262df6253bb9958b115deb03147286e2e9f6
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: | DebuggerCheck__QueryInfo |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | iexplorer_remcos |
|---|---|
| Author: | iam-py-test |
| Description: | Detect iexplorer being taken over by Remcos |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) |
| Rule name: | maldoc_find_kernel32_base_method_1 |
|---|---|
| Author: | Didier Stevens (https://DidierStevens.com) |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_no_import_table |
|---|---|
| Description: | Detect pe file that no import table |
| Rule name: | Remcos |
|---|---|
| Author: | kevoreilly |
| Description: | Remcos Payload |
| Rule name: | REMCOS_RAT_variants |
|---|
| 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_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.
Malspam
Delivery method
Distributed via e-mail attachment
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 |
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.