MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 90399d618bfbcf4d3adf3abebad223be29ef4a310b486d7f7e5b8bc3b2a00416. 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: 14


Intelligence 14 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 90399d618bfbcf4d3adf3abebad223be29ef4a310b486d7f7e5b8bc3b2a00416
SHA3-384 hash: 6fc11274f26bcbda44f5efd27298c6a7be30330c97374ae3a8d805b4ca8c0cc21520b22843c8cb7a049d6eb2c870d291
SHA1 hash: 1a060d2eef96f38ef7d0d654afab7ebefc358f77
MD5 hash: 1af734af3455f97c50b96a0923746f91
humanhash: oregon-mountain-vermont-july
File name:1AF734AF3455F97C50B96A0923746F91.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:891'904 bytes
First seen:2023-07-14 13:00:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 8466179c03d61f9be09e96306c739027 (2 x ModiLoader, 2 x RemcosRAT)
ssdeep 12288:VDQy2c+bp9/95hiFFCt2AvQBPNIkry/wNQZqLfLYUj2MsV2AWwog:Vcnbp9mIzvQBa1/wNQULfLYUyVVHjo
Threatray 2'238 similar samples on MalwareBazaar
TLSH T18B15BF73B3914433D6121B39DD1BA7C6993C7E222E24584637E13E4CAE79E53B826387
TrID 82.3% (.EXE) Win32 Executable Borland Delphi 6 (262638/61)
4.4% (.EXE) Win32 Executable Delphi generic (14182/79/4)
4.1% (.SCR) Windows screen saver (13097/50/3)
3.1% (.EXE) DOS Borland compiled Executable (generic) (10000/1/2)
2.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
File icon (PE):PE icon
dhash icon f434f2e4d6969292 (2 x RemcosRAT, 1 x ModiLoader)
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
84.38.133.134:32676

Intelligence

File Origin
# of uploads :
1
# of downloads :
305
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1AF734AF3455F97C50B96A0923746F91.exe
Verdict:
Malicious activity
Analysis date:
2023-07-14 13:02:02 UTC
Tags:
dbatloader
Link:
https://app.any.run/tasks/d60f119c-776d-488b-95b6-5b6700c098ec

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/418971/
Detection(s):
SecuriteInfo.com.Variant.Barys.432110.32576.31362.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a window
Searching for synchronization primitives
DNS request
Sending a custom TCP request
Creating a file
Running batch commands
Creating a process with a hidden window
Launching cmd.exe command interpreter
Launching a process
Sending an HTTP GET request
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:
control keylogger lolbin packed replace
Link:
https://www.filescan.io/uploads/64b14710057bff26cf23b959/reports/a42c64aa-b6b8-4e57-a76b-1c17614082a9/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/90399d618bfbcf4d3adf3abebad223be29ef4a310b486d7f7e5b8bc3b2a00416
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:
Dbatloader
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8c2768f9-1453-4fb5-83cc-a7b0f54da2c3
Result
Threat name:
Remcos, DBatLoader
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1273178
Signature
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates a thread in another existing process (thread injection)
DLL side loading technique detected
Drops executables to the windows directory (C:\Windows) and starts them
Found malware configuration
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: Remcos
Snort IDS alert for network traffic
Suspicious powershell command line found
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Writes to foreign memory regions
Yara detected DBatLoader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1273178 Sample: 6K9552cWbC.exe Startdate: 14/07/2023 Architecture: WINDOWS Score: 100 81 Snort IDS alert for network traffic 2->81 83 Multi AV Scanner detection for domain / URL 2->83 85 Found malware configuration 2->85 87 11 other signatures 2->87 10 6K9552cWbC.exe 1 7 2->10         started        15 Bfvzzpjr.bat 2->15         started        process3 dnsIp4 61 web.fe.1drv.com 10->61 63 onedrive.live.com 10->63 69 2 other IPs or domains 10->69 47 C:\Users\Public\Libraries\netutils.dll, PE32+ 10->47 dropped 49 C:\Users\Public\Libraries\easinvoker.exe, PE32+ 10->49 dropped 51 C:\Users\Public\Libraries\Bfvzzpjr.bat, PE32 10->51 dropped 95 Writes to foreign memory regions 10->95 97 Allocates memory in foreign processes 10->97 99 Creates a thread in another existing process (thread injection) 10->99 101 Injects a PE file into a foreign processes 10->101 17 cmd.exe 3 10->17         started        20 colorcpl.exe 5 16 10->20         started        65 web.fe.1drv.com 15->65 67 onedrive.live.com 15->67 71 2 other IPs or domains 15->71 103 Multi AV Scanner detection for dropped file 15->103 105 Machine Learning detection for dropped file 15->105 23 colorcpl.exe 15->23         started        file5 signatures6 process7 dnsIp8 75 Uses ping.exe to sleep 17->75 77 Drops executables to the windows directory (C:\Windows) and starts them 17->77 79 Uses ping.exe to check the status of other devices and networks 17->79 25 easinvoker.exe 17->25         started        27 PING.EXE 1 17->27         started        30 xcopy.exe 2 17->30         started        33 6 other processes 17->33 57 www.supremeswitchgear.com 84.38.133.134, 32676, 49700 DATACLUB-NL Latvia 20->57 59 geoplugin.net 178.237.33.50, 49701, 80 ATOM86-ASATOM86NL Netherlands 20->59 signatures9 process10 dnsIp11 35 cmd.exe 1 25->35         started        73 127.0.0.1 unknown unknown 27->73 53 C:\Windows \System32\easinvoker.exe, PE32+ 30->53 dropped 55 C:\Windows \System32\netutils.dll, PE32+ 33->55 dropped 38 conhost.exe 33->38         started        file12 process13 signatures14 89 Suspicious powershell command line found 35->89 91 Adds a directory exclusion to Windows Defender 35->91 40 powershell.exe 21 35->40         started        43 conhost.exe 35->43         started        process15 signatures16 93 DLL side loading technique detected 40->93 45 conhost.exe 40->45         started        process17
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/90399d618bfbcf4d3adf3abebad223be29ef4a310b486d7f7e5b8bc3b2a00416/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-07-10 06:35:02 UTC
File Type:
PE (Exe)
Extracted files:
42
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=sa4z2yml7phu2ow7hk7lvurdxyu66srrbneg2736lof4hmvaaqla._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
1c24ed06a4d38c863c4016a0489f66934b9167269b958a17dcdbb6ecae3baf18
RemcosRAT
4705d0455f510489e38077583207db8f77ceb5c6283b130fb24dcd82f8bbc4bd
RemcosRAT
4b402fc22d549d386739470a310d2b3df617cea9667d950fe26fd58f49cd89e4
RemcosRAT
5e75e6201d276c99cbac6caf0e2ddca24e0937867fd141c4fa3a70fdeee7782d
RemcosRAT
9e0e03b59e2a06a0c63e11e5c031aca3cda0119b77d90e256e45aab01830e827
RemcosRAT
a4a9151dee1026abcaec06ec7596983a05cc7df43c37d5646e17ae02e2902445
RemcosRAT
bdb1c780b6be528e436a70faf51d5e3b4f888afedcfd862bdd26af41ff333f42
RemcosRAT
+ 2'228 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:modiloader family:remcos botnet:pharmacy-people persistence rat trojan
Link:
https://tria.ge/reports/230714-p87qrseh3y/
Behaviour
Enumerates system info in registry
Runs ping.exe
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
ModiLoader Second Stage
ModiLoader, DBatLoader
Remcos
Malware Config
C2 Extraction:
www.supremeswitchgear.com:32676
Unpacked files
SH256 hash:
3bbb1fddefca24e749c53406c71bb4e26f285c85d45083500e9c553c60239d56
MD5 hash:
103db6d86a729254c3a3bbef7c340f61
SHA1 hash:
b379ad1f4fbe5d83ad7f1e13b48d3087813d5e15
Detections:
win_dbatloader_g1
Create hunting rule
Link:
https://www.unpac.me/results/df30487b-a5c8-4f8e-865f-841db5060d1b/
Parent samples :
74f3991c2f65f8bfa4e39a908f8d4d73d8b502fed1d9910a9ed66773c0674c99
a08cd110a928227dd4b3b42b1801bc1c907dd042bea8494ac701142c5eb345da
90399d618bfbcf4d3adf3abebad223be29ef4a310b486d7f7e5b8bc3b2a00416
4038439ae519453da6ef2075154a367f29889fd0d085b588f02f2e20feaf25ab
SH256 hash:
90399d618bfbcf4d3adf3abebad223be29ef4a310b486d7f7e5b8bc3b2a00416
MD5 hash:
1af734af3455f97c50b96a0923746f91
SHA1 hash:
1a060d2eef96f38ef7d0d654afab7ebefc358f77
Detections:
DbatLoaderStage1
Create hunting rule
Link:
https://www.unpac.me/results/df30487b-a5c8-4f8e-865f-841db5060d1b/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/90399d618bfb/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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:CMD_Ping_Localhost
Create hunting rule
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Typical_Malware_String_Transforms
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
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.

Cape
Cape
https://www.capesandbox.com/analysis/418971/

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