MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 587df9036ffed6807865686f406ff26511a466562129803f75c5b8cd7e0f9839. 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: 11
| SHA256 hash: | 587df9036ffed6807865686f406ff26511a466562129803f75c5b8cd7e0f9839 |
|---|---|
| SHA3-384 hash: | 2cec1fd989c6e183510c4bdc24fd73070ea4bf61fba0b14c41067151add68630ac0fee814ecca5c436159b305c8d1567 |
| SHA1 hash: | 451b90dab257396edebab0d6ef58eb62bd6cf25b |
| MD5 hash: | 65a849e00f8a9851b36707d010d5f644 |
| humanhash: | blue-ohio-delta-beryllium |
| File name: | Factura Serfinanza050288227788749652817960744.exe |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 1'978'368 bytes |
| First seen: | 2021-05-03 00:20:17 UTC |
| Last seen: | 2021-05-03 01:26:00 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger) |
| ssdeep | 1536:MsiSKTSro0St8rkLQKCkgard7YfwfNhVeOMs1hN0WuA07Ga8umUPrudPd0AL61fo:hiHLWtIz85dr8wdBYBSVm |
| Threatray | 1'744 similar samples on MalwareBazaar |
| TLSH | 529561B19D974E4FF0FBE8E11C84CAD88A9FEAF028719571281D9916176B4498FE4F30 |
| 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 |
|---|---|
| 186.169.72.174:3521 | https://threatfox.abuse.ch/ioc/28069/ |
Intelligence
File Origin
# of uploads :
3
# of downloads :
147
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a UDP request
Adding an access-denied ACE
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Launching the default Windows debugger (dwwin.exe)
Creating a process from a recently created file
Creating a window
Deleting a recently created file
DNS request
Creating a file
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
Sending a TCP request to an infection source
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:
rans.troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Contains functionality to capture and log keystrokes
Contains functionality to hide a thread from the debugger
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Country aware sample found (crashes after keyboard check)
Detected Remcos RAT
Found malware configuration
Hides threads from debuggers
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Detection:
remcos
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Status:
Malicious
First seen:
2021-05-03 00:21:07 UTC
AV detection:
11 of 47 (23.40%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 1'734 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos persistence rat
Behaviour
Delays execution with timeout.exe
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
databasepropersonombrecomercialideasearchwords.services:3521
Unpacked files
SH256 hash:
2e74f90d11a34c9d8fd0237983c26caec731931bb58f24cf9d3d30ca25199c37
MD5 hash:
b57c091068383267b2f63a1a055f43bb
SHA1 hash:
dace84587f9d1bd1e0fa888c09844bf6c274ee74
Detections:
win_remcos_g0
win_remcos_auto
SH256 hash:
9baca9aa650a5cac29698b9e480c20e5e203b2045301d0f500a99ca0617cb3a3
MD5 hash:
6803c8cdc07d198ad28024531a2baa9a
SHA1 hash:
77273aa52b9f8d862610383ae51d2feae2e9d11c
SH256 hash:
587df9036ffed6807865686f406ff26511a466562129803f75c5b8cd7e0f9839
MD5 hash:
65a849e00f8a9851b36707d010d5f644
SHA1 hash:
451b90dab257396edebab0d6ef58eb62bd6cf25b
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
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: | ach_RemcosRAT |
|---|---|
| Author: | abuse.ch |
| Rule name: | Chrome_stealer_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Chrome in files like avemaria |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer |
|---|---|
| Author: | ditekSHen |
| Description: | detects Windows exceutables potentially bypassing UAC using eventvwr.exe |
| Rule name: | INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu |
|---|---|
| Author: | ditekSHen |
| Description: | Detect executables with stomped PE compilation timestamp that is greater than local current time |
| Rule name: | Keylog_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Contains Keylog |
| Rule name: | Parallax |
|---|---|
| Author: | @bartblaze |
| Description: | Identifies Parallax RAT. |
| 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: | 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.
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