MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0a728ec3848abe9aa05ba647339d8f78ef0d94d1b52e916ff6c76024e28ebd93. 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: 15


Intelligence 15 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0a728ec3848abe9aa05ba647339d8f78ef0d94d1b52e916ff6c76024e28ebd93
SHA3-384 hash: e28357201ccaf2d05ee8efc131c7813069fb5640b3ac209bcff93009115c4d9bc0d99182394ac9717f9ecf19b079e0b6
SHA1 hash: 6d12dbb5fa455208794a579ab563e23c1145a5af
MD5 hash: 918ad03ceb3d4ece174474d8f8ab29d9
humanhash: carbon-fifteen-seven-earth
File name:RFQ Document - Instruction.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:477'928 bytes
First seen:2023-02-06 07:14:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:wIKScI1RQpngyDDN+Ja3U+cwqxf6uApZJmddkTMI:cpng0Cn+ZO1AUk4
TLSH T107A4E0597241758EC827C832C9DE0C341BA97B976B37C617B48B66AD8E0D3E3CE051E6
TrID 66.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.5% (.EXE) Win64 Executable (generic) (10523/12/4)
5.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon d2e8ecb2b2a2b282 (106 x AgentTesla, 106 x Formbook, 24 x RedLineStealer)
Reporter adrian__luca
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
185
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
RFQ Document - Instruction.exe
Verdict:
Malicious activity
Analysis date:
2023-02-06 07:23:04 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/68f29e13-b4cd-4548-a874-3216ebbdf61f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/360624/
Detection(s):
SecuriteInfo.com.IL.Trojan.MSILZilla.23192.6033.10529.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Launching a process
Creating a file
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Unauthorized injection to a system process
Verdict:
Unknown
Threat level:
n/a  -.1/10
Confidence:
80%
Tags:
obfuscated overlay packed
Link:
https://www.filescan.io/uploads/63e0a8fa96add6d1cf49c2fb/reports/0af38437-f864-4352-80b4-5885b7b254c4/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/0a728ec3848abe9aa05ba647339d8f78ef0d94d1b52e916ff6c76024e28ebd93
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.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/50a8faeb-83a3-4fb0-b4ce-e8e13d36c420
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1166313
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Executable has a suspicious name (potential lure to open the executable)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0a728ec3848abe9aa05ba647339d8f78ef0d94d1b52e916ff6c76024e28ebd93/
Threat name:
ByteCode-MSIL.Trojan.Zilla
Create hunting rule
Status:
Malicious
First seen:
2023-01-31 16:22:55 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
19 of 39 (48.72%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=bjzi5q4erk7jvic3uzdthhmppdxq3fgrwuxjc37wy5qcjyuoxwjq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:uc rat
Link:
https://tria.ge/reports/230206-h29hfsfh6y/
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Remcos
Malware Config
C2 Extraction:
ucremcz1.ddns.net:1823
Unpacked files
SH256 hash:
c2296809155417083c5c50349b1c817a942c72a3411251fbcd6900558be81ed1
MD5 hash:
2dbb39ff68e2110693f6fa79a766c3be
SHA1 hash:
6eccdf701150d004c49aff4070f0f34c16ae1a0b
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/dde89b7e-47d9-4535-b19a-8f0178a4c735/
Parent samples :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 hash:
6d4cc1efa2c51981d8bf836567a9d3ec08e8d8110c23f4f84b544669cfc0c676
MD5 hash:
3455edc231da661d30b7554cc4b55fa6
SHA1 hash:
5bb7641d4eb56727245d67949489d175eadd3ac5
Link:
https://www.unpac.me/results/dde89b7e-47d9-4535-b19a-8f0178a4c735/
SH256 hash:
0a728ec3848abe9aa05ba647339d8f78ef0d94d1b52e916ff6c76024e28ebd93
MD5 hash:
918ad03ceb3d4ece174474d8f8ab29d9
SHA1 hash:
6d12dbb5fa455208794a579ab563e23c1145a5af
Link:
https://www.unpac.me/results/dde89b7e-47d9-4535-b19a-8f0178a4c735/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0a728ec3848a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/0a728ec3848abe9aa05ba647339d8f78ef0d94d1b52e916ff6c76024e28ebd93

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:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_EXE_Packed_ConfuserEx
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:pe_imphash
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

RemcosRAT

Executable exe 0a728ec3848abe9aa05ba647339d8f78ef0d94d1b52e916ff6c76024e28ebd93

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/360624/

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