MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f03d040e56b75395412f206828fa814cb9b7043163e7ffbd4ee38cbab418f764. 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: 14


Intelligence 14 IOCs 1 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f03d040e56b75395412f206828fa814cb9b7043163e7ffbd4ee38cbab418f764
SHA3-384 hash: 8f81870ddb13439c2822de7b97fc8274e444ba850313276e74fabefd9a6dac49147da0ab12263352bfc83b9a045aea44
SHA1 hash: 3f8143c521e5b87f4cf0e632917ee4669ffe7d31
MD5 hash: 620ca7fc4234632a283c657f4790b2f0
humanhash: timing-echo-yellow-one
File name:620ca7fc4234632a283c657f4790b2f0.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'310'208 bytes
First seen:2022-03-20 23:45:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:q1RBgQxmhJ9wHpEOY3tdrgqhJ9Nqjq8FHMEx/:qbBgeqa6B3tdrgmHNq3
Threatray 2'818 similar samples on MalwareBazaar
TLSH T1BD55F1F0FE0892BEDC01623AC4A85C701DB52B9E25197F1B516F21DD453BACF49A2C6E
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
186.169.76.143:9595

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
186.169.76.143:9595 https://threatfox.abuse.ch/ioc/428617/

Intelligence

File Origin
# of uploads :
1
# of downloads :
369
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/253175/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Creating a file
Running batch commands
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit obfuscated packed remcos
Link:
https://www.filescan.io/uploads/6237bcbd0cd58dbd92ca32f7/reports/177a101d-b538-4200-ab18-e9a2e4353214/overview
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/1633bff5-4758-4548-ab1e-6387023c0ab1
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/960349
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Detected Remcos RAT
Found malware configuration
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: Suspicious Add Scheduled Task From User AppData Temp
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 592830 Sample: wS7LZBNzK4.exe Startdate: 21/03/2022 Architecture: WINDOWS Score: 100 71 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->71 73 Found malware configuration 2->73 75 Malicious sample detected (through community Yara rule) 2->75 77 15 other signatures 2->77 11 wS7LZBNzK4.exe 7 2->11         started        15 remcos.exe 2->15         started        17 remcos.exe 2->17         started        process3 file4 61 C:\Users\user\AppData\...\BevrUUjWkfHVE.exe, PE32 11->61 dropped 63 C:\...\BevrUUjWkfHVE.exe:Zone.Identifier, ASCII 11->63 dropped 65 C:\Users\user\AppData\Local\...\tmp8A02.tmp, XML 11->65 dropped 67 C:\Users\user\AppData\...\wS7LZBNzK4.exe.log, ASCII 11->67 dropped 87 Contains functionality to steal Chrome passwords or cookies 11->87 89 Contains functionality to inject code into remote processes 11->89 91 Uses schtasks.exe or at.exe to add and modify task schedules 11->91 93 3 other signatures 11->93 19 wS7LZBNzK4.exe 4 5 11->19         started        22 powershell.exe 25 11->22         started        24 schtasks.exe 1 11->24         started        26 wS7LZBNzK4.exe 11->26         started        signatures5 process6 file7 55 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 19->55 dropped 57 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 19->57 dropped 59 C:\Users\user\AppData\Local\...\install.vbs, data 19->59 dropped 28 wscript.exe 1 19->28         started        30 conhost.exe 22->30         started        32 conhost.exe 24->32         started        process8 process9 34 cmd.exe 1 28->34         started        process10 36 remcos.exe 4 34->36         started        39 conhost.exe 34->39         started        signatures11 79 Multi AV Scanner detection for dropped file 36->79 81 Machine Learning detection for dropped file 36->81 83 Adds a directory exclusion to Windows Defender 36->83 41 remcos.exe 36->41         started        45 powershell.exe 36->45         started        47 schtasks.exe 36->47         started        process12 dnsIp13 69 estrenos12q.duckdns.org 186.169.76.143, 49767, 9595 COLOMBIATELECOMUNICACIONESSAESPCO Colombia 41->69 85 Installs a global keyboard hook 41->85 49 conhost.exe 41->49         started        51 conhost.exe 45->51         started        53 conhost.exe 47->53         started        signatures14 process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f03d040e56b75395412f206828fa814cb9b7043163e7ffbd4ee38cbab418f764/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-03-20 01:23:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
28 of 42 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6a6qidsww5jzkqjpebucr6ubjs43obbrmpt77pko4oglvnay65sa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
3aff0b3e7195005380f87feb7753190fa70cd885d10721e2fac690eb41690f2b
RemcosRAT
6066fc47ea6bbe1a4697b2d14e537e244cde2df01a94f57d343f6e846b4e87c9
RemcosRAT
6bca1c6898c596415f8d1d2f49fafaf0ed3f448a593a87cc4cbc0e2a190cace3
RemcosRAT
7546a473cf06da15a6756ade78a1ea00d95fc6c51fa77f5d6c18748ac54da6b0
RemcosRAT
e1754d3bb2df3b1c3c8b6448afd0e7e03b65e4d4a9fa331df40acc0acc38a408
RemcosRAT
eabd094656b8aa6e945cc435a8acbf2d772255646aa389a398ae37b9049c081d
RemcosRAT
+ 2'808 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost persistence rat suricata
Link:
https://tria.ge/reports/220320-3sayraggej/
Behaviour
Creates scheduled task(s)
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
.NET Reactor proctector
Remcos
suricata: ET MALWARE Remocs 3.x Unencrypted Checkin
suricata: ET MALWARE Remocs 3.x Unencrypted Server Response
Malware Config
C2 Extraction:
estrenos12q.duckdns.org:9595
Unpacked files
SH256 hash:
4ebc5dc41dff846729d70db53acd371d5e4659a77f6cfdf5aeea799fadef7976
MD5 hash:
089037278985a57bab238b819afda08f
SHA1 hash:
db6b276c2fa3f745e9553d53dae0c54a296012f3
Link:
https://www.unpac.me/results/7b4bb66a-1a15-45fa-adad-d13fda005717/
SH256 hash:
f05048be080b785f2efbc56f5726420cfb83f120e22f0f3fa9a322e177c7f69a
MD5 hash:
cfadb89cf9379939d5aef18df6cf0a52
SHA1 hash:
bc0350a2f11b4d9a9cf13e616beece25fcedd6eb
Link:
https://www.unpac.me/results/7b4bb66a-1a15-45fa-adad-d13fda005717/
SH256 hash:
ec91b54412c11b6651a3337aa11226f3f9d14094ba8f49c2610e1d202be14cee
MD5 hash:
9c95b618c4937e1938b486676ae81dce
SHA1 hash:
98f774dfbe3b0f3d070bda5ace264f29d496ee78
Detections:
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/7b4bb66a-1a15-45fa-adad-d13fda005717/
SH256 hash:
9b00e2fa33ad72dec22a5e107ab6886da72bbe0bed89a721e877c1dc3ce6a662
MD5 hash:
b4c9c16228f0ee1de70ffc6264fb720c
SHA1 hash:
437049e452a511e220abdb32df695cdf07f5a7d0
Link:
https://www.unpac.me/results/7b4bb66a-1a15-45fa-adad-d13fda005717/
SH256 hash:
de4edfa5024097d008f2f39199ec28fff0c466f3dc9d5e89402f7a87d0f44a83
MD5 hash:
1613bbcfcac7baea9f96b05cf281add9
SHA1 hash:
f792288ab86b0715efc7f8b5290c0d9b9cbcc417
Link:
https://www.unpac.me/results/7b4bb66a-1a15-45fa-adad-d13fda005717/
SH256 hash:
f03d040e56b75395412f206828fa814cb9b7043163e7ffbd4ee38cbab418f764
MD5 hash:
620ca7fc4234632a283c657f4790b2f0
SHA1 hash:
3f8143c521e5b87f4cf0e632917ee4669ffe7d31
Link:
https://www.unpac.me/results/7b4bb66a-1a15-45fa-adad-d13fda005717/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/f03d040e56b7/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/f03d040e56b75395412f206828fa814cb9b7043163e7ffbd4ee38cbab418f764

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/253175/

Comments