MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5755305654c07b239c370661598bc698f8113b41fe5785e0e13098a66cdbd4eb. 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 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5755305654c07b239c370661598bc698f8113b41fe5785e0e13098a66cdbd4eb
SHA3-384 hash: 73e09108c6b56d434b48c0d01db0a3f655fb060854129fff8f7193d3bde7189ce560405e96cda3b8628415cdeeb9cb1a
SHA1 hash: 069cf2b7306f61ac65a4598f519a83dd535325c9
MD5 hash: 9a942028f55f59560c38677923c7ce6a
humanhash: oscar-equal-hotel-island
File name:HUD34EDRFQ253.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'022'464 bytes
First seen:2024-03-25 19:10:15 UTC
Last seen:2024-07-25 01:12:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'453 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:yxWTl+NDnZjbBxcxyGFKjL8kFzzjBh3HrYMY:lpknZHEyGw3t3cz
Threatray 3'741 similar samples on MalwareBazaar
TLSH T18E250192EAC48685ED695FB911371C241377BE2BBDB8E11C4D48B0E96BB36C34432E47
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
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:
194.147.140.180:1987

Intelligence

File Origin
# of uploads :
2
# of downloads :
614
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
5755305654c07b239c370661598bc698f8113b41fe5785e0e13098a66cdbd4eb.exe
Verdict:
Malicious activity
Analysis date:
2024-03-25 19:12:16 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/7c5b4007-4bc6-4c48-8f67-506b413a67d5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Setting a keyboard event handler
Connection attempt
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6601cc552915b1a64e0aa429/reports/cb1ba8a3-3f37-406b-81e3-6296b357b4ff/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/5755305654c07b239c370661598bc698f8113b41fe5785e0e13098a66cdbd4eb
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/12a68df7-b1fc-4746-84f7-3323d6b18e94
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1415412
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
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
Detected Remcos RAT
Found malware configuration
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 dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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: 1415412 Sample: HUD34EDRFQ253.exe Startdate: 25/03/2024 Architecture: WINDOWS Score: 100 45 geoplugin.net 2->45 51 Snort IDS alert for network traffic 2->51 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 12 other signatures 2->57 8 XPTpFDOlta.exe 5 2->8         started        11 HUD34EDRFQ253.exe 7 2->11         started        signatures3 process4 file5 59 Antivirus detection for dropped file 8->59 61 Multi AV Scanner detection for dropped file 8->61 63 Contains functionality to bypass UAC (CMSTPLUA) 8->63 71 7 other signatures 8->71 14 XPTpFDOlta.exe 8->14         started        17 schtasks.exe 1 8->17         started        41 C:\Users\user\AppData\...\XPTpFDOlta.exe, PE32 11->41 dropped 43 C:\Users\user\AppData\Local\...\tmp1B55.tmp, XML 11->43 dropped 65 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 11->65 67 Uses schtasks.exe or at.exe to add and modify task schedules 11->67 69 Adds a directory exclusion to Windows Defender 11->69 19 HUD34EDRFQ253.exe 3 15 11->19         started        23 powershell.exe 23 11->23         started        25 powershell.exe 23 11->25         started        27 schtasks.exe 1 11->27         started        signatures6 process7 dnsIp8 29 conhost.exe 17->29         started        47 194.147.140.180, 1987, 49707 PTPEU unknown 19->47 49 geoplugin.net 178.237.33.50, 49709, 80 ATOM86-ASATOM86NL Netherlands 19->49 39 C:\ProgramData\remcos\logs.dat, data 19->39 dropped 73 Detected Remcos RAT 19->73 75 Installs a global keyboard hook 19->75 31 WmiPrvSE.exe 23->31         started        33 conhost.exe 23->33         started        35 conhost.exe 25->35         started        37 conhost.exe 27->37         started        file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/5755305654c07b239c370661598bc698f8113b41fe5785e0e13098a66cdbd4eb
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5755305654c07b239c370661598bc698f8113b41fe5785e0e13098a66cdbd4eb/
Threat name:
ByteCode-MSIL.Trojan.Davinci
Create hunting rule
Status:
Malicious
First seen:
2024-03-25 19:02:23 UTC
File Type:
PE (.Net Exe)
Extracted files:
35
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=k5ktavsuyb5shhbxazqvtc6gtd4bco2b7zlylyhbgcmkm3g32tvq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847
RemcosRAT
737cedd9e82602536f0b02d2608b856c49b158928de47bb891d401bae810bdc4
RemcosRAT
c08cb69aed7f30fe924a3fee014f33aabadaf11644e304c25b28f64c4fa09c48
RemcosRAT
e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f
RemcosRAT
+ 3'731 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost rat
Link:
https://tria.ge/reports/240325-xvxmmsag31/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
194.147.140.180:1987
Unpacked files
SH256 hash:
934493ffcf84233432ef4b4bacc7e1e282acd7366505bc3050f619e6e3767f4c
MD5 hash:
6458eafa0681114ad4f98d4014223d76
SHA1 hash:
a8f40dd46897496cb5c286889748760f62fd79dd
Link:
https://www.unpac.me/results/94ea2a14-fc94-4f4f-a6dc-a5eb219fe281/
SH256 hash:
f7108b53c99bded305861e0f20e7e274a2c9f547c2d45f6ce7c18481caab410c
MD5 hash:
84052d74c01ef426da2e5df51765899e
SHA1 hash:
7584a5fc3fe372e1465f4655af4d181b91f39582
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/94ea2a14-fc94-4f4f-a6dc-a5eb219fe281/
SH256 hash:
14641f03051d346aa3a24be14851261baa2ee6b1cff524ddca433fcc71d9542d
MD5 hash:
6661bfd44985279631496543484323b1
SHA1 hash:
5b3452b4c01b676f5ab2d4586819bd687456a34e
Link:
https://www.unpac.me/results/94ea2a14-fc94-4f4f-a6dc-a5eb219fe281/
SH256 hash:
782f962d8d56ca9573120b335ad9762ebb844b5f58bedbbcb8546e4bb01af733
MD5 hash:
8bda8d747651e8c278a98adc9440c1b7
SHA1 hash:
3fa5804ecd4bea5b1e28de6be1dd184375fe4b84
Link:
https://www.unpac.me/results/94ea2a14-fc94-4f4f-a6dc-a5eb219fe281/
SH256 hash:
5755305654c07b239c370661598bc698f8113b41fe5785e0e13098a66cdbd4eb
MD5 hash:
9a942028f55f59560c38677923c7ce6a
SHA1 hash:
069cf2b7306f61ac65a4598f519a83dd535325c9
Link:
https://www.unpac.me/results/94ea2a14-fc94-4f4f-a6dc-a5eb219fe281/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5755305654c0/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/5755305654c07b239c370661598bc698f8113b41fe5785e0e13098a66cdbd4eb

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
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
Reference:https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set
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.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Create hunting rule
Author:Matthew @ Embee_Research

File information

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

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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