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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e21d587ddb34f60dd96877cfa4de01d658d0964ad0641df4359e324fb9d920e0. 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: 7


Intelligence 7 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e21d587ddb34f60dd96877cfa4de01d658d0964ad0641df4359e324fb9d920e0
SHA3-384 hash: 60908efb4eff5d60004b6a7494e5f83f73595b3d92a1d731c1b80f83e796ddcbedc29b7c98421bbc687348228433356c
SHA1 hash: 46602104ceb50321e9a7e2aa0a19a4e07c8941de
MD5 hash: bd9b16233a009a505ebf0dce8517524d
humanhash: solar-one-arkansas-lamp
File name:Ariba.vbs
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'308 bytes
First seen:2022-07-07 19:53:03 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 48:cCsABFSUNxvPqrnZ4x0cFBP4eLn85p4S2dmDY60qIe/IzxI4PbV:5vr1NsrnZG6c8X4/dmDz0qIsIzfzV
TLSH T1A341EDDE60077021EA0308B2FD8B356E7C70730381F99890B758E6C51D2EA59A763CBE
Reporter 0xToxin
Tags:remcos RemcosRAT vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
284
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/285676/
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/62c739dc76fa5a59944badaf/reports/f38a14a8-58d6-486b-bb99-a0be155ba62f/overview
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1026760
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
DLL side loading technique detected
Drops PE files to the startup folder
Drops VBS files to the startup folder
Injects a PE file into a foreign processes
Installs a global keyboard hook
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Powershell drops PE file
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)
VBScript performs obfuscated calls to suspicious functions
Very long command line found
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 659255 Sample: Ariba.vbs Startdate: 07/07/2022 Architecture: WINDOWS Score: 100 64 Multi AV Scanner detection for domain / URL 2->64 66 Malicious sample detected (through community Yara rule) 2->66 68 Antivirus detection for URL or domain 2->68 70 3 other signatures 2->70 8 wscript.exe 1 2->8         started        11 wscript.exe 1 2->11         started        13 iexplore.exe 2 83 2->13         started        15 iexplore.exe 1 53 2->15         started        process3 signatures4 84 VBScript performs obfuscated calls to suspicious functions 8->84 86 Wscript starts Powershell (via cmd or directly) 8->86 88 Very long command line found 8->88 17 powershell.exe 14 22 8->17         started        21 powershell.exe 12 8->21         started        23 powershell.exe 11->23         started        25 iexplore.exe 1 32 13->25         started        28 iexplore.exe 15->28         started        process5 dnsIp6 52 C:\Users\user\AppData\...\AgileDotNetRT64.dll, PE32+ 17->52 dropped 54 C:\Users\user\AppData\...\AgileDotNetRT64.dll, PE32+ 17->54 dropped 72 Writes to foreign memory regions 17->72 74 DLL side loading technique detected 17->74 76 Injects a PE file into a foreign processes 17->76 78 Powershell drops PE file 17->78 30 RegAsm.exe 17->30         started        34 conhost.exe 17->34         started        80 Drops VBS files to the startup folder 21->80 82 Drops PE files to the startup folder 21->82 36 conhost.exe 21->36         started        38 conhost.exe 23->38         started        40 RegAsm.exe 23->40         started        56 23.95.85.179, 49735, 49736, 49744 AS-COLOCROSSINGUS United States 25->56 file7 signatures8 process9 dnsIp10 60 saptransmissions.dvrlists.com 103.231.91.59, 49761, 49762, 49763 INTERGRID-AS-APIntergridGroupPtyLtdAU Australia 30->60 62 geoplugin.net 178.237.33.50, 49764, 80 ATOM86-ASATOM86NL Netherlands 30->62 96 Installs a global keyboard hook 30->96 98 Injects a PE file into a foreign processes 30->98 42 RegAsm.exe 30->42         started        45 RegAsm.exe 30->45         started        48 RegAsm.exe 30->48         started        50 wscript.exe 30->50         started        signatures11 process12 dnsIp13 90 Tries to steal Instant Messenger accounts or passwords 42->90 92 Tries to steal Mail credentials (via file / registry access) 42->92 58 192.168.2.1 unknown unknown 45->58 94 Tries to harvest and steal browser information (history, passwords, etc) 45->94 signatures14
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e21d587ddb34f60dd96877cfa4de01d658d0964ad0641df4359e324fb9d920e0/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4iovq7o3gt3a3wlio7h2jxqb2zmnbfsk2bsb35bvtyze7oozedqa._file
Verdict:
unknown
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:junbuild rat
Link:
https://tria.ge/reports/220707-ymhzyshgen/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Blocklisted process makes network request
Remcos
Malware Config
C2 Extraction:
saptransmissions.dvrlists.com:55026
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/e21d587ddb34f60dd96877cfa4de01d658d0964ad0641df4359e324fb9d920e0

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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
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.

Web download

RemcosRAT

Visual Basic Script (vbs) vbs e21d587ddb34f60dd96877cfa4de01d658d0964ad0641df4359e324fb9d920e0

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/285676/

Comments