MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9a00523dfd6d321adb4fffbb54a1550055dde6301dddba3a5157a4169b11d462. 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: 17


Intelligence 17 IOCs YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9a00523dfd6d321adb4fffbb54a1550055dde6301dddba3a5157a4169b11d462
SHA3-384 hash: 0b75abdae9644cd65208eb55ccb32da0eedf2448dc55eaaf8c794b474cb1380747d212e3739c71f28d6c3bd411b9f45b
SHA1 hash: da6889d365c47ac46a16f1b3409d04c5778e4d50
MD5 hash: 2279756982754f30b1c3a047acb5fb3c
humanhash: fourteen-kentucky-california-mexico
File name:GUHUDES23ED.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'464'832 bytes
First seen:2023-10-13 05:40:17 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 24576:VwOx9JKFIb6bQFf4SVuoOlwFjF0VbJszH2bF:zk90FQTlfJsz2
Threatray 2'660 similar samples on MalwareBazaar
TLSH T1F065732C48B809128D61E36DDFD4EA13B1807CD6667C9D9E87C59F495A2383BB09BC3D
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 0307612c88000000 (65 x AgentTesla, 47 x RemcosRAT, 9 x MassLogger)
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
194.147.140.246:1998

Intelligence

File Origin
# of uploads :
1
# of downloads :
370
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
GUHUDES23ED.exe
Verdict:
Malicious activity
Analysis date:
2023-10-13 05:43:12 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/dd5a4bdc-9634-4540-b1eb-9d8f67dba267

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/454041/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Restart of the analyzed sample
Adding an exclusion to Microsoft Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6528d870c51de9263e599994/reports/5706d68c-c676-41cc-a103-638bebdc518b/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/9a00523dfd6d321adb4fffbb54a1550055dde6301dddba3a5157a4169b11d462
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c2265bf5-0cab-4d9d-8c8a-acf4e6aae109
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1325118
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to modify clipboard data
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1325118 Sample: GUHUDES23ED.exe Startdate: 13/10/2023 Architecture: WINDOWS Score: 100 41 geoplugin.net 2->41 47 Snort IDS alert for network traffic 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 11 other signatures 2->53 8 gmhPbe.exe 5 2->8         started        11 GUHUDES23ED.exe 7 2->11         started        signatures3 process4 file5 57 Multi AV Scanner detection for dropped file 8->57 59 Contains functionality to bypass UAC (CMSTPLUA) 8->59 61 Contains functionalty to change the wallpaper 8->61 69 6 other signatures 8->69 14 schtasks.exe 1 8->14         started        16 gmhPbe.exe 8->16         started        18 gmhPbe.exe 8->18         started        37 C:\Users\user\AppData\Roaming\gmhPbe.exe, PE32 11->37 dropped 39 C:\Users\user\AppData\Local\...\tmpDE76.tmp, XML 11->39 dropped 63 Uses schtasks.exe or at.exe to add and modify task schedules 11->63 65 Adds a directory exclusion to Windows Defender 11->65 67 Injects a PE file into a foreign processes 11->67 20 GUHUDES23ED.exe 2 15 11->20         started        25 powershell.exe 23 11->25         started        27 schtasks.exe 1 11->27         started        signatures6 process7 dnsIp8 29 conhost.exe 14->29         started        43 194.147.140.246, 1998, 49746 PTPEU unknown 20->43 45 geoplugin.net 178.237.33.50, 49747, 80 ATOM86-ASATOM86NL Netherlands 20->45 35 C:\ProgramData\remcos\logs.dat, data 20->35 dropped 55 Installs a global keyboard hook 20->55 31 conhost.exe 25->31         started        33 conhost.exe 27->33         started        file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/9a00523dfd6d321adb4fffbb54a1550055dde6301dddba3a5157a4169b11d462
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/9a00523dfd6d321adb4fffbb54a1550055dde6301dddba3a5157a4169b11d462/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2023-10-13 05:41:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
15 of 23 (65.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tiafepp5nuzbvw2p765vjikvabk53zrqdxo3uosrk6sbngyr2rra._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
1c6b0eb5c224c46a65fb5022852905a1293a148bd97bb81593b813e8ed814ba8
RemcosRAT
483d7f7379d43c9fb3effb226cb58a443f48105bda3a9a6310a76729d7c1b3bd
RemcosRAT
4eecb3d02825158bc36d86c8d75f37137a11576eb8fb9fec7e592648fd369f96
RemcosRAT
5e95168687b15de3724b3c8240c0b40cdb61c75b440d11a7fa72c2b247c920ae
RemcosRAT
8278a87cb192844a46818c28aba0106879e1c368366fc52064d2c7943f3f197b
RemcosRAT
91755d1873b073b6799b3eb655e69847c08f4a932963a2dba60bb18296710a68
RemcosRAT
f4c3fd0e00326b94391240d6f460ef2501f5985e6e09d3e2e4728441c91417e2
RemcosRAT
+ 2'650 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:hosyt rat
Link:
https://tria.ge/reports/231013-gde39sha44/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
194.147.140.246:1998
Unpacked files
SH256 hash:
a040efb5ce92995b5d40fd2536c8ad6a93f2d8584a3dd52f07cdb0b34c9e6e29
MD5 hash:
a5a52675690de850e3de6c05a9bd885f
SHA1 hash:
fd953edf2e910fbb43c9e6d4c8d48632bb4e55c6
Link:
https://www.unpac.me/results/3e9d74fd-37a1-43c7-9b54-745f6650d297/
SH256 hash:
b1270dc9ec3f22c6fd2296239426ac7c48589589580d4a1b3da8188920b22a63
MD5 hash:
5c904da8528cfb1b87b15a6aa7c059cd
SHA1 hash:
f0a192969485d1bc34bf52adf37d9c20176d6b85
Link:
https://www.unpac.me/results/3e9d74fd-37a1-43c7-9b54-745f6650d297/
SH256 hash:
1b886b2358f2fffa78f2f9abc36f9d04ef19778eb03132584656eaca4eb19014
MD5 hash:
5c11ae1b6a54ac4a0cf0c7bab1112181
SHA1 hash:
e86cce4d4a7e1b1b75a088a844ea1e4826d260c9
Link:
https://www.unpac.me/results/3e9d74fd-37a1-43c7-9b54-745f6650d297/
SH256 hash:
e51a1d19469138479fbfed5a967ba259d978a38ed279efae49786a05e4b6fffa
MD5 hash:
aad0a2221fddc96dadf9658ee076dabd
SHA1 hash:
6c7de620907ff8c59f08546e9469ca836767513c
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/3e9d74fd-37a1-43c7-9b54-745f6650d297/
SH256 hash:
9a00523dfd6d321adb4fffbb54a1550055dde6301dddba3a5157a4169b11d462
MD5 hash:
2279756982754f30b1c3a047acb5fb3c
SHA1 hash:
da6889d365c47ac46a16f1b3409d04c5778e4d50
Link:
https://www.unpac.me/results/3e9d74fd-37a1-43c7-9b54-745f6650d297/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/9a00523dfd6d/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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
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:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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.
Rule name:win_remcos_rat_unpacked
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:win_remcos_w0
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.

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/454041/

Comments