MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 495955225d3f8b7ee34f7f194685ac06621f177e25aca6bde09d038b0a2afd74. 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


Intelligence 13 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 495955225d3f8b7ee34f7f194685ac06621f177e25aca6bde09d038b0a2afd74
SHA3-384 hash: c5a8df4177b20466db5a6566ea18e17e892bf2f0226134dfdae374bd0dd5caf810c1a75d6e94341e7744d6b930e90b2b
SHA1 hash: 998e6f410a43aa618edf7c3a1a5e36abc79c6326
MD5 hash: 8862719d86a768b1d8363364f0382868
humanhash: virginia-oklahoma-massachusetts-helium
File name:8862719d86a768b1d8363364f0382868.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'472'960 bytes
First seen:2021-01-13 15:58:35 UTC
Last seen:2021-01-13 17:44:48 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 1536:UklRfhczROPeKHrg5O5QJtMGHzryW26ccVp3CG1TB8pnlHGkvNHJLHj+QUF5Biqf:UkDfhqFKS
Threatray 1'366 similar samples on MalwareBazaar
TLSH A265D564EDB76DC1A69286910EDBF1CAE3BE6B563AC80E6F543C06474087490C61BF73
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
swryijgrvcsgkopnmcdertvgdswbvmophtfdczxs.ydns.eu:2017

Intelligence

File Origin
# of uploads :
2
# of downloads :
142
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
8862719d86a768b1d8363364f0382868.exe
Verdict:
Malicious activity
Analysis date:
2021-01-13 16:07:56 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/6ca2bf28-645d-4c91-bc9d-80e14df3188c

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/111800/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.503.23405.2032.UNOFFICIAL
Create hunting rule

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
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a window
Deleting a recently created file
DNS request
Connection attempt
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
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
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/580297
Signature
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
Country aware sample found (crashes after keyboard check)
Detected Remcos RAT
Hides threads from debuggers
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
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 339187 Sample: 4JSavT5vXE.exe Startdate: 13/01/2021 Architecture: WINDOWS Score: 100 75 swryijgrvcsgkopnmcdertvgdswbvmophtfdczxs.ydns.eu 2->75 77 Multi AV Scanner detection for domain / URL 2->77 79 Malicious sample detected (through community Yara rule) 2->79 81 Multi AV Scanner detection for submitted file 2->81 83 4 other signatures 2->83 12 4JSavT5vXE.exe 3 2->12         started        15 vlc.exe 2->15         started        signatures3 process4 signatures5 91 Contains functionality to steal Chrome passwords or cookies 12->91 93 Contains functionality to capture and log keystrokes 12->93 95 Contains functionality to inject code into remote processes 12->95 97 Contains functionality to steal Firefox passwords or cookies 12->97 17 4JSavT5vXE.exe 4 4 12->17         started        20 WerFault.exe 23 9 12->20         started        22 cmd.exe 1 12->22         started        26 2 other processes 12->26 99 Hides threads from debuggers 15->99 24 cmd.exe 15->24         started        process6 file7 69 C:\Users\user\AppData\Roaming\vlc.exe, PE32 17->69 dropped 71 C:\Users\user\...\vlc.exe:Zone.Identifier, ASCII 17->71 dropped 28 wscript.exe 1 17->28         started        73 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 20->73 dropped 30 timeout.exe 1 22->30         started        32 conhost.exe 22->32         started        34 conhost.exe 24->34         started        36 timeout.exe 24->36         started        38 conhost.exe 26->38         started        40 conhost.exe 26->40         started        42 timeout.exe 1 26->42         started        44 timeout.exe 1 26->44         started        process8 process9 46 cmd.exe 1 28->46         started        48 conhost.exe 30->48         started        50 timeout.exe 30->50         started        process10 52 vlc.exe 3 46->52         started        55 conhost.exe 46->55         started        signatures11 85 Multi AV Scanner detection for dropped file 52->85 87 Machine Learning detection for dropped file 52->87 89 Hides threads from debuggers 52->89 57 cmd.exe 52->57         started        59 cmd.exe 52->59         started        61 cmd.exe 52->61         started        process12 process13 63 conhost.exe 57->63         started        65 timeout.exe 57->65         started        67 conhost.exe 59->67         started       
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/495955225d3f8b7ee34f7f194685ac06621f177e25aca6bde09d038b0a2afd74/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-01-13 12:31:23 UTC
AV detection:
19 of 46 (41.30%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jfmvkis5h6fx5y2pp4munbnmazrb6f36ewwknppatubywcrk7v2a._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
11b16ba733f2f4f10ac58021eecaf5668551a73e2a1acfae99745c50bfccbb44
RemcosRAT
21691425c52cf7a77c0e3a65cc1c0c59cb026d5b76e78160ebb8a553f9bbe50c
RemcosRAT
4791861118e0be776fd14153e2feca7d25f5a91a6c32a997385f5ae272e3d7c8
RemcosRAT
4a94b062dbb9df940520146d100df5b019795d0f508d7ba89d24eb18725e1608
RemcosRAT
5b10f4a23880b51923a0df3e9e3c37f40eb0d3cc93de7b463da62f936a501385
RemcosRAT
61d9f4cbc76b7889d7d17d262b63c0fd2ee40642653063b1eb6ab84397f8c57b
RemcosRAT
82027bdaf86e2d0da1c45ede5efd820a1cbaace1b1b8f7675b8115d82db75f26
RemcosRAT
9930543939f97818319ed031530d9e084994331aa4b06a304faeb321bbcc63db
RemcosRAT
d34e588c8bef9cef39708c52f7f372bcd4b5fc39e4eaf0b9193aa586a10d7cc2
RemcosRAT
e26c95b32b64e3f7b5d72d52be2fd7cb52c7a2c1df25f5337a783a1735f806ad
RemcosRAT
+ 1'356 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/210113-11e4zn7ma2/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
Suspicious behavior: GetForegroundWindowSpam
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:
swryijgrvcsgkopnmcdertvgdswbvmophtfdczxs.ydns.eu:2017
Unpacked files
SH256 hash:
495955225d3f8b7ee34f7f194685ac06621f177e25aca6bde09d038b0a2afd74
MD5 hash:
8862719d86a768b1d8363364f0382868
SHA1 hash:
998e6f410a43aa618edf7c3a1a5e36abc79c6326
Link:
https://www.unpac.me/results/edaa0079-51f0-4586-8b63-7efc66d3c001/
SH256 hash:
935ed422f99352245b878e9fdd5113543946badbee629bd2e812884d4d59ed04
MD5 hash:
ff8ac35209c836e9bb5c15a3c538f49d
SHA1 hash:
d12f03544bb952569d82666a3c7a3c34235159e9
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/edaa0079-51f0-4586-8b63-7efc66d3c001/
SH256 hash:
b9079cc16eea3c39f6bc99b8bbfd241c93404f8a2e50c6065b468e55b022addd
MD5 hash:
a031a160fd87cd8dd45ff8d781a28119
SHA1 hash:
706652427945b26742704ce1cebe9865b7658c96
Link:
https://www.unpac.me/results/edaa0079-51f0-4586-8b63-7efc66d3c001/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.59
Link:
https://yomi.yoroi.company/submissions/495955225d3f8b7ee34f7f194685ac06621f177e25aca6bde09d038b0a2afd74

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
Create hunting rule
Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Create hunting rule
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Remcos
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:win_remcos_auto
Create hunting rule
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.

Web download

RemcosRAT

Executable exe 495955225d3f8b7ee34f7f194685ac06621f177e25aca6bde09d038b0a2afd74

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/111800/
  
URLhaus
https://urlhaus.abuse.ch/url/954595/
  
Delivery method
Distributed via web download

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