MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 ba3e637da6f5ba0a5c1574f32d5e11ee595f7388b641762f4d11fddbc70dda79. 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: 10
| SHA256 hash: | ba3e637da6f5ba0a5c1574f32d5e11ee595f7388b641762f4d11fddbc70dda79 |
|---|---|
| SHA3-384 hash: | 5300f8c8b61def65605f1d42d2b992d7ab779e9037cd84d6e90008da6d2d416b4c0a9a0788c4eaea3048655bd9360df7 |
| SHA1 hash: | 758668d4112d8793c15b23046168cd4ef8278921 |
| MD5 hash: | 399f9666797693a0dce84285a9ab1feb |
| humanhash: | lima-fanta-georgia-beer |
| File name: | 399f9666797693a0dce84285a9ab1feb.exe |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 37'376 bytes |
| First seen: | 2021-05-15 16:40:44 UTC |
| Last seen: | 2021-05-15 17:03:36 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | d01b793cfeabb1210a9dfd924e5cbf0d (3 x RemcosRAT) |
| ssdeep | 768:iNnmZ/8vPlLUdhfJ8v6utFpVsuRregrWChgzg9b7Dsr1:knwu4DejVLyOhgzg9Yr |
| Threatray | 1'771 similar samples on MalwareBazaar |
| TLSH | 7CF2E145D247616CC678817E0053370DB23956EB231985BB0B94017DFFA7B1E3E2BB5A |
| Reporter |  abuse_ch |
| Tags: | exe RAT RemcosRAT |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| 51.222.96.164:1178 | https://threatfox.abuse.ch/ioc/42989/ |
Intelligence
File Origin
# of uploads :
2
# of downloads :
180
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
399f9666797693a0dce84285a9ab1feb.exe
Verdict:
Malicious activity
Analysis date:
2021-05-15 16:43:44 UTC
Tags:
trojan rat remcos
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a process from a recently created file
Setting a keyboard event handler
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Sending a UDP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun
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.
Result
Threat name:
Remcos
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to capture and log keystrokes
Contains functionality to detect virtual machines (IN, VMware)
Contains functionality to inject code into remote processes
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
Creates an undocumented autostart registry key
Detected Remcos RAT
Detected unpacking (changes PE section rights)
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Threat name:
Win32.Backdoor.Rescoms
Status:
Malicious
First seen:
2021-05-13 06:22:00 UTC
AV detection:
29 of 29 (100.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 1'761 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
10/10
Tags:
persistence
Behaviour
Runs ping.exe
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Modifies WinLogon
Adds policy Run key to start application
Executes dropped EXE
Modifies WinLogon for persistence
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.74
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: | Chrome_stealer_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Chrome in files like avemaria |
| Rule name: | INDICATOR_EXE_Packed_MPress |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables built or packed with MPress PE compressor |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer |
|---|---|
| Author: | ditekSHen |
| Description: | detects Windows exceutables potentially bypassing UAC using eventvwr.exe |
| Rule name: | Keylog_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Contains Keylog |
| Rule name: | Remcos |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Remcos in memory |
| Rule name: | remcos_rat |
|---|---|
| Author: | jeFF0Falltrades |
| Rule name: | REMCOS_RAT_variants |
|---|
| Rule name: | suspicious_packer_section |
|---|---|
| Author: | @j0sm1 |
| Description: | The packer/protector section names/keywords |
| Reference: | http://www.hexacorn.com/blog/2012/10/14/random-stats-from-1-2m-samples-pe-section-names/ |
| Rule name: | win_remcos_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | autogenerated rule brought to you by yara-signator |
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.============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0009.029] Anti-Behavioral Analysis::Instruction Testing
1) [F0001] Anti-Behavioral Analysis::Software Packing
2) [C0026.002] Data Micro-objective::XOR::Encode Data