MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ebb89d7d2ba96d368ef3e3f296ba7ff2e591489e7726a0613c89764b7f654390. 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: 10


Intelligence 10 IOCs 1 YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ebb89d7d2ba96d368ef3e3f296ba7ff2e591489e7726a0613c89764b7f654390
SHA3-384 hash: b296ab6613f285d06c69671a28e297aec4e37fa57cc7a8c23c10d4bb525e3d54e86086d49f3d42784f5c6a0fc156ca21
SHA1 hash: ffe41851b9820e5bfd7aad7dadcaf8d4822ba5f1
MD5 hash: 9583a703274b68a2fb524598b40a87ac
humanhash: jig-sodium-delta-failed
File name:9583a703274b68a2fb524598b40a87ac.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'864'192 bytes
First seen:2021-05-05 12:05:50 UTC
Last seen:2021-05-05 13:29:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 1536:oYoIoqCok89Tio/Sunag9VJo84RrbB89j2l4nJOVnQpFAy6zs0A7K4y2A9co8ucY:Q
Threatray 1'750 similar samples on MalwareBazaar
TLSH 7E85F12053FF561BF7E1FA3B4378929D1E733A8CA23E716DA196A1569374D40C120B2B
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
188.72.103.46:2177

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
188.72.103.46:2177 https://threatfox.abuse.ch/ioc/29332/

Intelligence

File Origin
# of uploads :
3
# of downloads :
129
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/150583/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.703.16671.3484.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Running batch commands
Creating a process with a hidden window
Launching a process
Adding an access-denied ACE
Creating a file
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a window
Deleting a recently created file
DNS request
Sending a custom TCP request
Sending a UDP request
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/711889
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to capture and log keystrokes
Contains functionality to hide a thread from the debugger
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Country aware sample found (crashes after keyboard check)
Detected Remcos RAT
Found malware configuration
Hides threads from debuggers
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: WScript or CScript Dropper
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 404868 Sample: GaGrozugEz.exe Startdate: 05/05/2021 Architecture: WINDOWS Score: 100 79 Multi AV Scanner detection for domain / URL 2->79 81 Found malware configuration 2->81 83 Malicious sample detected (through community Yara rule) 2->83 85 7 other signatures 2->85 11 GaGrozugEz.exe 3 2->11         started        14 win.exe 2->14         started        16 win.exe 3 2->16         started        process3 signatures4 95 Contains functionality to steal Chrome passwords or cookies 11->95 97 Contains functionality to capture and log keystrokes 11->97 99 Contains functionality to inject code into remote processes 11->99 101 Contains functionality to steal Firefox passwords or cookies 11->101 18 GaGrozugEz.exe 4 4 11->18         started        21 WerFault.exe 23 9 11->21         started        23 cmd.exe 1 11->23         started        25 GaGrozugEz.exe 11->25         started        103 Hides threads from debuggers 14->103 105 Injects a PE file into a foreign processes 14->105 27 cmd.exe 14->27         started        29 cmd.exe 16->29         started        31 win.exe 16->31         started        33 win.exe 16->33         started        35 WerFault.exe 16->35         started        process5 file6 69 C:\Users\user\AppData\Roaming\win.exe, PE32 18->69 dropped 71 C:\Users\user\...\win.exe:Zone.Identifier, ASCII 18->71 dropped 73 C:\Users\user\AppData\Local\...\install.vbs, data 18->73 dropped 37 wscript.exe 1 18->37         started        75 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 21->75 dropped 39 conhost.exe 23->39         started        41 timeout.exe 1 23->41         started        43 conhost.exe 27->43         started        45 timeout.exe 27->45         started        47 conhost.exe 29->47         started        49 timeout.exe 29->49         started        process7 process8 51 cmd.exe 1 37->51         started        process9 53 win.exe 3 51->53         started        56 conhost.exe 51->56         started        signatures10 87 Multi AV Scanner detection for dropped file 53->87 89 Machine Learning detection for dropped file 53->89 91 Hides threads from debuggers 53->91 93 2 other signatures 53->93 58 win.exe 53->58         started        61 cmd.exe 53->61         started        63 WerFault.exe 53->63         started        process11 dnsIp12 77 gsyagvxnzmkoplbhduisbagtevcnxmzlopljdgye.ydns.eu 188.72.103.46, 2177, 49753 M247GB Netherlands 58->77 65 conhost.exe 61->65         started        67 timeout.exe 61->67         started        process13
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ebb89d7d2ba96d368ef3e3f296ba7ff2e591489e7726a0613c89764b7f654390/
Threat name:
ByteCode-MSIL.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-05-05 11:38:24 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
26 of 47 (55.32%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=5o4j27jlvfwtndxt4pzjnot76lszcse6o4tkayj4rf3ew73fioia._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0769c1487705fd65aeacdd813882e532d3bbd4ffa7106a2015bac448d8091bbb
RemcosRAT
4579780c18fb273fd0884237c7a4021dbbb38494194d8c1840449e8a62d29251
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4fe8c8398a6cf30cfd7cbed590de821abdb40aa177781c43c19bdfec75308355
RemcosRAT
522a495b289cf22898f762f18571b8839194e6232cb80fbb28dc426cbeeee323
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622a12c9935eb8f0cfa499bb445642a837fa150a161e5393f7a1d759e6f94f02
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833b575dac3a049ede0d27e2ff801d2e8d647cf04006f0037e1a9c71d7c8ace4
RemcosRAT
ab9041fe7e0a4a439521d6eb01cc16d74c00a0427c86b067120ac453ba7329d9
RemcosRAT
c39bdd8f7c69c3140ef920e2b1d5965310058c5fa425b871f4d7751d8291d55e
RemcosRAT
cee5cdde8972799268ab97a77880793470dfc0d93c5e697bb66f83b6675f51ba
RemcosRAT
e0d4ce0316734fce0ea0d950f0ff1b4182f1364d581c549a199ac041cfe68ebb
RemcosRAT
+ 1'740 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/210505-cn96l3hq5e/
Behaviour
Delays execution with timeout.exe
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
gsyagvxnzmkoplbhduisbagtevcnxmzlopljdgye.ydns.eu:2177
Unpacked files
SH256 hash:
5e48f68d2190c515cc57b663d57974d992533253afddb2cd200cb90e5478a913
MD5 hash:
c79c1e70dafa8f35c9907d341bbfb863
SHA1 hash:
c9cc90a70ac9ce973e41fd46e0bb9817f735dacc
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/0d6e4612-c90a-4198-a877-d0816db40544/
SH256 hash:
a3bc1300f3dc0c839b5ee9903028fd77b78d7840074a7a6e4869d85cc86226c8
MD5 hash:
2f0d11e440e635100ba97ee49cf49428
SHA1 hash:
9ca440e9be71c002b23289eb06e9cea4a0d28bdd
Link:
https://www.unpac.me/results/0d6e4612-c90a-4198-a877-d0816db40544/
SH256 hash:
ebb89d7d2ba96d368ef3e3f296ba7ff2e591489e7726a0613c89764b7f654390
MD5 hash:
9583a703274b68a2fb524598b40a87ac
SHA1 hash:
ffe41851b9820e5bfd7aad7dadcaf8d4822ba5f1
Link:
https://www.unpac.me/results/0d6e4612-c90a-4198-a877-d0816db40544/
Please note that we are no longer able to provide a coverage score for Virus Total.

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:ach_RemcosRAT
Create hunting rule
Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Create hunting rule
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:pe_imphash
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
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:autogenerated rule brought to you by yara-signator

File information

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

Web download

RemcosRAT

Executable exe ebb89d7d2ba96d368ef3e3f296ba7ff2e591489e7726a0613c89764b7f654390

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1196049/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/150583/

Comments