MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a4b821d0cadc92c344c8b60f5290a5e5520fd1fb3813b88c529c48d285b72c63. 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: 13
| SHA256 hash: | a4b821d0cadc92c344c8b60f5290a5e5520fd1fb3813b88c529c48d285b72c63 |
|---|---|
| SHA3-384 hash: | abb368376171b6118fc650dd36cda80c36982f723df31e1cceaf5f2e07a8994f02accd2a5d5dcda0331848c21ffab241 |
| SHA1 hash: | 1d62cb39f195064b70e9b34d01d0addcecf1e586 |
| MD5 hash: | 62a380019f39c277af9f332bbdac827d |
| humanhash: | oxygen-quiet-item-cold |
| File name: | CPU-Protect.bin |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 1'587'200 bytes |
| First seen: | 2022-03-18 17:25:37 UTC |
| Last seen: | 2022-03-18 18:45:48 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger) |
| ssdeep | 24576:+U7M9ipkI6idpSKPEpPA+y0+ziAMav/rYZ7JP90IQNk2ll2wA9W5pxkiqInx:7gMSSEprr1kDYNJF0/NkQl2g548x |
| Threatray | 1'251 similar samples on MalwareBazaar |
| TLSH | T1A775E12026E0091BE3DE27BCDFA5D35D15A0AB07DFD47CC79C61D01AA872DCA46624FA |
| File icon (PE): |  |
| dhash icon | c2d8d08080c1ee78 (1 x RemcosRAT) |
| Reporter |  J_Hunt3r |
| Tags: | DESKTOP-group exe RemcosRAT |
Intelligence
File Origin
# of uploads :
2
# of downloads :
273
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
https://onedrive.live.com/download?cid=4949857A287004DD&resid=4949857A287004DD%21120&authkey=AKRGx5R2S7KBlBg
Verdict:
Malicious activity
Analysis date:
2022-03-18 17:16:29 UTC
Tags:
n/a
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 window
Adding an access-denied ACE
Launching a process
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Setting a keyboard event handler
DNS request
Searching for the window
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
obfuscated packed remcos
Result
Verdict:
UNKNOWN
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:
AsyncRAT Remcos
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to detect sleep reduction / modifications
Contains functionality to hide user accounts
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Query firmware table information (likely to detect VMs)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected AsyncRAT
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Status:
Malicious
First seen:
2022-03-18 17:26:19 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
14 of 27 (51.85%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 1'241 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos botnet:host persistence rat
Behaviour
Modifies registry class
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
shell-win11.duckdns.org:8080
Unpacked files
SH256 hash:
a4b821d0cadc92c344c8b60f5290a5e5520fd1fb3813b88c529c48d285b72c63
MD5 hash:
62a380019f39c277af9f332bbdac827d
SHA1 hash:
1d62cb39f195064b70e9b34d01d0addcecf1e586
Malware family:
Remcos
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.54
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: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
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.