MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8efed2063a46f5fcc92d1a8c625c79700ee8fef6a4c6a919887ab8c96b8a7073. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8efed2063a46f5fcc92d1a8c625c79700ee8fef6a4c6a919887ab8c96b8a7073
SHA3-384 hash: cdbfecbb6f70f476158cf48d6f439406f6eda9a57995f84c96c038b1378b2111f9f92608f15e5745a7cc8735df9b4182
SHA1 hash: 92c7de6c6c6352c2da2d1a5f2950ea0f15b48255
MD5 hash: 5682192a7f68060a128b528eae092b37
humanhash: speaker-finch-eighteen-idaho
File name:PO-201624.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:949'760 bytes
First seen:2024-02-20 10:32:47 UTC
Last seen:2024-02-20 10:34:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:5MABbH1kSFpuWCqUVbBpSwlcesTMEe4i2StB6eHL9jO:15nFpuWCNVmesQErSqeHL9y
TLSH T1D615237131B0FBB5D97C07F1197A252213FA826AB1C4F36C4DC6F0DA2A97B128794A17
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)
Reporter lowmal3
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
323
Origin country :
DE DE
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/477032/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.46253.7614.57.UNOFFICIAL
Create hunting rule

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
Launching a process
Restart of the analyzed sample
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
formbook packed
Link:
https://www.filescan.io/uploads/65d47fe433761b2a226463e1/reports/b45ad403-6583-4ddd-b7bb-f932957e7d29/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/8efed2063a46f5fcc92d1a8c625c79700ee8fef6a4c6a919887ab8c96b8a7073
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:
MSIL Injector
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2c044502-c544-4b13-a54e-320fa58cb450
Result
Threat name:
Remcos, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1395188
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
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
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)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected PureLog Stealer
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1395188 Sample: PO-201624.exe Startdate: 20/02/2024 Architecture: WINDOWS Score: 100 53 geoplugin.net 2->53 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 Antivirus detection for URL or domain 2->63 65 13 other signatures 2->65 8 PO-201624.exe 7 2->8         started        12 SyxKFncnJaR.exe 5 2->12         started        signatures3 process4 file5 49 C:\Users\user\AppData\...\SyxKFncnJaR.exe, PE32 8->49 dropped 51 C:\Users\user\AppData\Local\...\tmp9C8F.tmp, XML 8->51 dropped 67 Tries to steal Mail credentials (via file registry) 8->67 69 Uses schtasks.exe or at.exe to add and modify task schedules 8->69 71 Adds a directory exclusion to Windows Defender 8->71 73 Injects a PE file into a foreign processes 8->73 14 PO-201624.exe 3 14 8->14         started        18 powershell.exe 23 8->18         started        20 powershell.exe 23 8->20         started        22 schtasks.exe 1 8->22         started        75 Multi AV Scanner detection for dropped file 12->75 77 Contains functionality to bypass UAC (CMSTPLUA) 12->77 79 Contains functionalty to change the wallpaper 12->79 81 5 other signatures 12->81 24 schtasks.exe 12->24         started        26 SyxKFncnJaR.exe 12->26         started        28 SyxKFncnJaR.exe 12->28         started        signatures6 process7 dnsIp8 55 198.27.121.194, 2024, 49701, 49703 OVHFR Canada 14->55 57 geoplugin.net 178.237.33.50, 49706, 80 ATOM86-ASATOM86NL Netherlands 14->57 89 Tries to harvest and steal browser information (history, passwords, etc) 14->89 91 Maps a DLL or memory area into another process 14->91 30 PO-201624.exe 14->30         started        33 PO-201624.exe 14->33         started        35 PO-201624.exe 14->35         started        37 conhost.exe 14->37         started        39 conhost.exe 18->39         started        41 WmiPrvSE.exe 18->41         started        43 conhost.exe 20->43         started        45 conhost.exe 22->45         started        47 conhost.exe 24->47         started        signatures9 process10 signatures11 83 Tries to steal Instant Messenger accounts or passwords 30->83 85 Tries to steal Mail credentials (via file / registry access) 30->85 87 Tries to harvest and steal browser information (history, passwords, etc) 33->87
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8efed2063a46f5fcc92d1a8c625c79700ee8fef6a4c6a919887ab8c96b8a7073
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8efed2063a46f5fcc92d1a8c625c79700ee8fef6a4c6a919887ab8c96b8a7073/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2024-02-16 10:04:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=r37nebr2i327zsjndkggexdzoahor7xwutdksgmipk4ms24kobzq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:desk collection rat spyware stealer
Link:
https://tria.ge/reports/240220-mlhr1sff36/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Checks computer location settings
Reads user/profile data of web browsers
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
198.27.121.194:2024
Unpacked files
SH256 hash:
ab3d870b57ffaac449078340a00ba6e0b2bd551444b1fd04fb2e26f80591f044
MD5 hash:
45e5bc690da784b17a8712f0c9d90b9e
SHA1 hash:
ee44c7590640799d7cf17e7fea505d0fea1741f0
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/dc0d68b7-a864-40ae-95bc-23df33cf307f/
Parent samples :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 hash:
549c0978868a5951b6d124a720f17830f9e26f5c92748cd57a23aa95db116895
MD5 hash:
f4fd6b54c37440df5200d28a97b2edb8
SHA1 hash:
ecab378d0d89a6089edb26da4749d014b6095dbb
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/dc0d68b7-a864-40ae-95bc-23df33cf307f/
Parent samples :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 hash:
72638f4b30cc9dab51d31216991957bf1cd118b8a8743227b3e8f9c4805f7628
MD5 hash:
2a8240bba06e832ee5d136a0a7e5b5b9
SHA1 hash:
de49d9b33004a4a622a4279b3ee2b3e3e5cd012b
Link:
https://www.unpac.me/results/dc0d68b7-a864-40ae-95bc-23df33cf307f/
SH256 hash:
9d0bfae2ad76273fef0a9ce524e50d07cb1673fee1a5333e899fb4abcbde83f6
MD5 hash:
e0e1d1a558a39437d5a5c5daaba83a51
SHA1 hash:
313b05a124f4ae5e187b359b2892b39ffec7b5f5
Link:
https://www.unpac.me/results/dc0d68b7-a864-40ae-95bc-23df33cf307f/
SH256 hash:
8efed2063a46f5fcc92d1a8c625c79700ee8fef6a4c6a919887ab8c96b8a7073
MD5 hash:
5682192a7f68060a128b528eae092b37
SHA1 hash:
92c7de6c6c6352c2da2d1a5f2950ea0f15b48255
Link:
https://www.unpac.me/results/dc0d68b7-a864-40ae-95bc-23df33cf307f/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8efed2063a46f5fcc92d1a8c625c79700ee8fef6a4c6a919887ab8c96b8a7073

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: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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

RemcosRAT

Executable exe 8efed2063a46f5fcc92d1a8c625c79700ee8fef6a4c6a919887ab8c96b8a7073

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/477032/

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