MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 284232020b34f4cf7a8fc750b17821055f93426351f8450654141a5ee1326798. 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: 18


Intelligence 18 IOCs YARA 7 File information Comments
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SHA256 hash: 284232020b34f4cf7a8fc750b17821055f93426351f8450654141a5ee1326798
SHA3-384 hash: a204639110ee7adbcbd4567a28c6bdb5a2677866c32ef62a7aac33238a65a483080df65ea2eecf820c9758f3d2d997c3
SHA1 hash: c2a7d2a91bdbb00e4a398d42d164c566bc42d73f
MD5 hash: 6028355aa45e7a9494aaa2dd08b9f7c6
humanhash: hot-mobile-april-cola
File name:6190832.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:534'174 bytes
First seen:2023-02-27 14:29:16 UTC
Last seen:2023-02-27 16:32:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 12288:PYygpI9QkQQuOn747s15/FHMUquuCS5j5ENwTbPgv:PYyv9YTY7ms15/F9uHrPgv
Threatray 1'659 similar samples on MalwareBazaar
TLSH T1A2B4234570F4E863EDB29A3029B56275ABFCCD602C64569317009A5CB4F26B2D90FFB3
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter James_inthe_box
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
216
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
6190832.exe
Verdict:
Malicious activity
Analysis date:
2023-02-27 14:32:15 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/36f4f916-49ef-4497-b3df-526a829f6eef

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/370281/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.24.2953.32379.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed remcos shell32.dll
Link:
https://www.filescan.io/uploads/63fcbe6d5d47c2515e809b3c/reports/60c0ce71-f5e4-498a-a59b-d9595d5d4b2d/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/284232020b34f4cf7a8fc750b17821055f93426351f8450654141a5ee1326798
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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2036e42c-63d4-4c24-bb30-d980f114695a
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1183230
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 816064 Sample: 6190832.exe Startdate: 27/02/2023 Architecture: WINDOWS Score: 100 47 Multi AV Scanner detection for domain / URL 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 5 other signatures 2->53 7 6190832.exe 19 2->7         started        10 fajsox.exe 2->10         started        13 fajsox.exe 2->13         started        process3 file4 29 C:\Users\user\AppData\Local\...\rliwezu.exe, PE32 7->29 dropped 15 rliwezu.exe 1 2 7->15         started        55 Multi AV Scanner detection for dropped file 10->55 19 WerFault.exe 3 10 10->19         started        22 WerFault.exe 10 13->22         started        signatures5 process6 dnsIp7 31 C:\Users\user\AppData\Roaming\...\fajsox.exe, PE32 15->31 dropped 39 Multi AV Scanner detection for dropped file 15->39 41 Contains functionality to bypass UAC (CMSTPLUA) 15->41 43 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->43 45 4 other signatures 15->45 24 rliwezu.exe 2 14 15->24         started        27 rliwezu.exe 15->27         started        33 192.168.2.1 unknown unknown 19->33 file8 signatures9 process10 dnsIp11 35 89.37.99.49, 49700, 5888 BANDWIDTH-ASGB Romania 24->35 37 geoplugin.net 178.237.33.50, 49701, 80 ATOM86-ASATOM86NL Netherlands 24->37
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/284232020b34f4cf7a8fc750b17821055f93426351f8450654141a5ee1326798/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2023-02-27 08:28:29 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
21 of 25 (84.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=fbbdeaqlgt2m66upy5ilc6bbavpzgqtdkh4ekbsucqnf5yjsm6ma._file
Verdict:
malicious
Similar samples:
08c829e7056b8e022539076acbc962dea072e6506184d4036b785cb0e4592371
RemcosRAT
1cdd50cbdf51d44354d596e4a1f8a3fee6268362ffdce61b608322bba56ebdb0
RemcosRAT
25ba7b40ff6921b6590360a905d4389e799e0fc9f69f131f8ec21611482cde82
RemcosRAT
62f4359aef9d0d604c03c099da375debd0d98f20cf4f673a5a32bd64989076ca
RemcosRAT
71413583e55230a0a3a659cae17e5a23da5db0b660ed850b268c16680945995a
RemcosRAT
777b1fcf106f094c989933f56d47f1c411be0382ebf7c5836c2c64399b0bbe73
RemcosRAT
+ 1'649 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost persistence rat
Link:
https://tria.ge/reports/230227-rt5zqsdh2x/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Remcos
Malware Config
C2 Extraction:
89.37.99.49:5888
Unpacked files
SH256 hash:
1827b61000b50516367ea82806f6061d0c006451ffd3810afe78c069fbc173f4
MD5 hash:
bc0f39d72e6d2799dec22bfb9f8532d4
SHA1 hash:
ff7115405c37fef6ecaab1dafcc296905424dd45
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/9ad0566b-ffc4-4c40-ba60-1e85e850ce7a/
Parent samples :
777b1fcf106f094c989933f56d47f1c411be0382ebf7c5836c2c64399b0bbe73
284232020b34f4cf7a8fc750b17821055f93426351f8450654141a5ee1326798
SH256 hash:
556ab55f50aa4d99014b58fa2501ec9b6d795a685dc69cf25147a18326f1bef1
MD5 hash:
39cfca961477efa2cafa0d3bc9384d46
SHA1 hash:
dc19c5ca6da9439675e1481f3ba29ea05ae5b7ef
Link:
https://www.unpac.me/results/9ad0566b-ffc4-4c40-ba60-1e85e850ce7a/
SH256 hash:
284232020b34f4cf7a8fc750b17821055f93426351f8450654141a5ee1326798
MD5 hash:
6028355aa45e7a9494aaa2dd08b9f7c6
SHA1 hash:
c2a7d2a91bdbb00e4a398d42d164c566bc42d73f
Link:
https://www.unpac.me/results/9ad0566b-ffc4-4c40-ba60-1e85e850ce7a/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/284232020b34/report/overview.html
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/284232020b34f4cf7a8fc750b17821055f93426351f8450654141a5ee1326798

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: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: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: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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/370281/

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