MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 243f20cdb380369765796622e2e568de540cc470400cf5b0330e132e1702cd75. 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: 17
| SHA256 hash: | 243f20cdb380369765796622e2e568de540cc470400cf5b0330e132e1702cd75 |
|---|---|
| SHA3-384 hash: | 8c8eb697a237fa9de1c5226b99198954cb45e0d45fbddbb274cb6c11a47ac6fe95fd49253a0ef43e9f2dbf5b3a5df1b2 |
| SHA1 hash: | 87540c6442a4cc85ae93b160b91990147effb0db |
| MD5 hash: | 8afc7110cee6735ab8101a03907c5cf5 |
| humanhash: | indigo-utah-uncle-pasta |
| File name: | 8afc7110cee6735ab8101a03907c5cf5 |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 3'194'900 bytes |
| First seen: | 2024-06-25 06:11:01 UTC |
| Last seen: | 2024-06-25 06:45:47 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| ssdeep | 24576:dNb8/3PJ2th3kWD19Q0eWCyOgKitufPYqOaM4T:/q/ctFkWDDQ7pBi8fPY6 |
| TLSH | T16AE52211FA0B6D23FE0886B0C9C77AF01AFCAC977AF5525FDF602D0810A51BE6901679 |
| 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 |  zbetcheckin |
| Tags: | 64 exe RemcosRAT |
Intelligence
File Origin
# of uploads :
2
# of downloads :
361
Origin country :
FRVendor Threat Intelligence
Malware family:
remcos
ID:
1
File name:
243f20cdb380369765796622e2e568de540cc470400cf5b0330e132e1702cd75.exe
Verdict:
Malicious activity
Analysis date:
2024-06-25 06:12:54 UTC
Tags:
rat remcos remote
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Verdict:
Clean
Score:
89.3%
Link:
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Launching a process
Searching for synchronization primitives
Сreating synchronization primitives
Connection attempt to an infection source
Launching the default Windows debugger (dwwin.exe)
DNS request
Connection attempt
Sending an HTTP GET request
Searching for the window
Query of malicious DNS domain
Sending a TCP request to an infection source
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
overlay remcos
Verdict:
Malicious
Labled as:
Trojan.Mardom.ON.Generic
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.
Malware family:
REMCOS
Verdict:
Malicious
Result
Threat name:
Remcos
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
AI detected suspicious sample
Allocates memory in foreign processes
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
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
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:
Win64.Backdoor.Remcos
Status:
Malicious
First seen:
2024-06-25 06:07:57 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
1
AV detection:
18 of 24 (75.00%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
remcos
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos botnet:gp rat
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Remcos
Malware Config
C2 Extraction:
bossnacarpet.com:30902
Unpacked files
SH256 hash:
243f20cdb380369765796622e2e568de540cc470400cf5b0330e132e1702cd75
MD5 hash:
8afc7110cee6735ab8101a03907c5cf5
SHA1 hash:
87540c6442a4cc85ae93b160b91990147effb0db
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.
Web download
Delivery method
Distributed via web download
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 |
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