MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 36cfadcb888722b3562b605ccd609aaf7cc7210a94139e90d168cae433474feb. 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: | 36cfadcb888722b3562b605ccd609aaf7cc7210a94139e90d168cae433474feb |
|---|---|
| SHA3-384 hash: | 8f4dedf30af31d4d5b4358d0a4072ec96b8b41d8fc331fb797e495b2f5d5d89c4919eaa2c27b15497b34203404a265e4 |
| SHA1 hash: | 5691b0fdc6e406acc63a68533f42397951dfd6f0 |
| MD5 hash: | e8f16b4a9781a920d871309e15328fea |
| humanhash: | alabama-tango-bluebird-five |
| File name: | PO_NO.231101-ENQUIRY Urgently22.exe |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 545'280 bytes |
| First seen: | 2021-02-04 09:31:55 UTC |
| Last seen: | 2021-02-04 13:00:05 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 12288:TNcJN/8Qpian0uBeiDtqF8cHqRGiC9kyX:x4Jn0InQqEjqyX |
| Threatray | 1'496 similar samples on MalwareBazaar |
| TLSH | 55C49E3973C4EB65F03DA7B884210114A3F1BC4FE32DD29E7EE961CD15B5F808A65A26 |
| Reporter |  abuse_ch |
| Tags: | exe RAT RemcosRAT |
abuse_ch
Malspam distributing RemcosRAT:HELO: [185.136.161.212]
Sending IP: 185.136.161.212
From: " Silvia Chong" <silvia.chong@kogan.com.au>
Subject: PO_NO.231101-ENQUIRY Urgently
Attachment: PO_NO.231101-ENQUIRY Urgently22.exe
RemcosRAT C2:
kerrrrr.duckdns.org
Intelligence
File Origin
# of uploads :
3
# of downloads :
97
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO_NO.231101-ENQUIRY Urgently22.exe
Verdict:
Malicious activity
Analysis date:
2021-02-04 09:35:56 UTC
Tags:
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 window
Sending a UDP request
Launching a process
Creating a process with a hidden window
Running batch commands
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
.NET source code contains potential unpacker
Binary contains a suspicious time stamp
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 steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Detected Remcos RAT
Initial sample is a PE file and has a suspicious name
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspicious Svchost Process
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Detection:
remcos
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Status:
Malicious
First seen:
2021-02-04 06:51:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
32 of 48 (66.67%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 1'486 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos persistence ransomware rat
Behaviour
Creates scheduled task(s)
Runs ping.exe
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
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
kerrrrr.duckdns.org:4142
Unpacked files
SH256 hash:
39c565cb9b668488834518a7a4d6439be12bcf6c511583b9d35ec6db67b0cd1b
MD5 hash:
47df47bc7e2cf1320971b051c5275252
SHA1 hash:
023f86611d752189c1d83ba649230cfe88b9dd87
SH256 hash:
36cfadcb888722b3562b605ccd609aaf7cc7210a94139e90d168cae433474feb
MD5 hash:
e8f16b4a9781a920d871309e15328fea
SHA1 hash:
5691b0fdc6e406acc63a68533f42397951dfd6f0
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
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: | 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: | 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.
Malspam
Delivery method
Distributed via e-mail attachment
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