MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 3ebf027f17e2ba9e5689a67df4f1375297e9f43d258ac0b781d6fb27305fd452. 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: 12
| SHA256 hash: | 3ebf027f17e2ba9e5689a67df4f1375297e9f43d258ac0b781d6fb27305fd452 |
|---|---|
| SHA3-384 hash: | 331c677ac75deec201948c583e54e341add951b0642844ee5760e528b178013c222791d18120654cc80011b82595749d |
| SHA1 hash: | 84d12fe925213f334d01f4c9501cb593c39e82f5 |
| MD5 hash: | ad0fa1fbbc7c22ade1e56a530f8425bd |
| humanhash: | crazy-indigo-kansas-illinois |
| File name: | Factura Serfinanza_0975065870_6947500_191136433437276862847_8174211_83395420064529248_1443580329_pdf.exe |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 2'835'456 bytes |
| First seen: | 2021-05-10 07:14:10 UTC |
| Last seen: | 2021-05-10 08:08:01 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 1536:t9yNkIMkEpkI4FAMG6SKbWYf4Jz29pXzzYtPBYXLNUnf1+sJSJZw0cRcKoYZtdZG:ztfqVLWc6Eblm9BFsYAyR+m+rn |
| Threatray | 1'964 similar samples on MalwareBazaar |
| TLSH | 42D5E9B9F66C117E507FA6E5A15CB1DC0EBFEB72D5B8128B530280534F693984B29323 |
| Reporter |  abuse_ch |
| Tags: | exe RemcosRAT |
Intelligence
File Origin
# of uploads :
2
# of downloads :
151
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Creating a process with a hidden window
Launching a service
Sending a UDP request
Deleting a recently created file
Launching a process
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a file
Creating a window
Running batch commands
DNS request
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
Connection attempt to an infection source
Adding exclusions to Windows Defender
Result
Verdict:
SUSPICIOUS
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
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Detected Remcos RAT
Found malware configuration
Initial sample is a PE file and has a suspicious name
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: WScript or CScript Dropper
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Detection:
remcos
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Status:
Malicious
First seen:
2021-05-10 07:14:21 UTC
AV detection:
9 of 47 (19.15%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 1'954 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos evasion persistence rat trojan
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Windows security modification
Executes dropped EXE
Nirsoft
Modifies Windows Defender Real-time Protection settings
Remcos
Turns off Windows Defender SpyNet reporting
Windows security bypass
Malware Config
C2 Extraction:
databasepropersonombrecomercialideasearchwords.services:3521
Unpacked files
SH256 hash:
ed8fb2ed9199d50c1303b01e17128771f7a8b70e0f29851504faadadf9a704a3
MD5 hash:
5013cfb31d9b62b4801ce8b6df38aa93
SHA1 hash:
c20e2b3552cd4d93d22448be98b8c30b98ecc3b5
Detections:
win_remcos_g0
win_remcos_auto
SH256 hash:
1390906ea2d6ddd94218070fe92b867ba60dd0bb0b1cd9ef2816bbd7b8d1a5d3
MD5 hash:
2fc5d8b90f77dc249758c5ed908cfe6e
SHA1 hash:
abe199c3df7528c89f0056006705211033601f7a
SH256 hash:
3da80bd8e18bf2ef5e28f5e2e0d2095b0d4e65391800ce18f9a18859d7beb220
MD5 hash:
5dbed7594d4c8d71c1882692e6776bf0
SHA1 hash:
8552a2f2afca501945fe57c1875970b6f777f709
SH256 hash:
3ebf027f17e2ba9e5689a67df4f1375297e9f43d258ac0b781d6fb27305fd452
MD5 hash:
ad0fa1fbbc7c22ade1e56a530f8425bd
SHA1 hash:
84d12fe925213f334d01f4c9501cb593c39e82f5
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: | 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: | pe_imphash |
|---|
| 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: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | win_remcos_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | autogenerated rule brought to you by yara-signator |
| Rule name: | win_remcos_g0 |
|---|---|
| Author: | Daniel Plohmann <daniel.plohmann<at>fkie.fraunhofer.de> |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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