MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 998273c5925d08f9eaa0aa3de2d044e1b6f4bcb304d0d5c41971e4ac23ba5745. 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 YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 998273c5925d08f9eaa0aa3de2d044e1b6f4bcb304d0d5c41971e4ac23ba5745
SHA3-384 hash: ac3e60e1c5e0264caef49c5ee0c388a3f556b29987725d7ec19aaa5d5eee237a69ed4776b852df8176b5aadd7ffe42af
SHA1 hash: 125f527e7dd3663bd6fb9d200b3faffb6d3b0362
MD5 hash: 569e2b806bdb881fdc66e535242c423b
humanhash: moon-florida-mexico-papa
File name:569e2b806bdb881fdc66e535242c423b.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:29'184 bytes
First seen:2021-02-10 07:31:15 UTC
Last seen:2021-02-10 10:15:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'654 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 768:YP6RYiusV078TppRFcmbfK1sKm+sJd3Z:9RYi7V0ezLB2sJr
Threatray 1'533 similar samples on MalwareBazaar
TLSH 97D20929B59C9AA3E1281F37F5673722033CB2635D218D0BB8CED693E5241C9AD11F97
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
gdyhjjdhbvxgsfe.gotdns.ch:2177

Intelligence

File Origin
# of uploads :
2
# of downloads :
104
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
569e2b806bdb881fdc66e535242c423b.exe
Verdict:
Malicious activity
Analysis date:
2021-02-10 07:36:23 UTC
Tags:
trojan rat remcos keylogger
Link:
https://app.any.run/tasks/332dd0da-bbd2-4c33-ad08-0f7478647d40

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/116398/
Detection(s):
SecuriteInfo.com.Trojan.DownloaderNET.117.26007.9625.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending an HTTP GET request
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
Sending a UDP request
Creating a process from a recently created file
Creating a window
Deleting a recently created file
DNS request
Sending a custom TCP request
Launching the default Windows debugger (dwwin.exe)
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:
MALICIOUS
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/604255
Signature
Contains functionality to capture and log keystrokes
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
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 351157 Sample: cCkuGVM3Sk.exe Startdate: 10/02/2021 Architecture: WINDOWS Score: 100 90 Malicious sample detected (through community Yara rule) 2->90 92 Multi AV Scanner detection for submitted file 2->92 94 Detected Remcos RAT 2->94 96 4 other signatures 2->96 11 cCkuGVM3Sk.exe 15 3 2->11         started        15 win.exe 2->15         started        17 win.exe 2->17         started        process3 dnsIp4 88 185.239.242.107, 49739, 49746, 49747 CLOUDIE-AS-APCloudieLimitedHK Moldova Republic of 11->88 106 Contains functionality to steal Chrome passwords or cookies 11->106 108 Contains functionality to capture and log keystrokes 11->108 110 Contains functionality to inject code into remote processes 11->110 112 Contains functionality to steal Firefox passwords or cookies 11->112 19 cCkuGVM3Sk.exe 4 4 11->19         started        22 WerFault.exe 23 9 11->22         started        25 cmd.exe 1 11->25         started        114 Hides threads from debuggers 15->114 116 Injects a PE file into a foreign processes 15->116 27 WerFault.exe 15->27         started        29 cmd.exe 15->29         started        37 2 other processes 15->37 31 WerFault.exe 17->31         started        33 cmd.exe 17->33         started        35 win.exe 17->35         started        signatures5 process6 dnsIp7 72 C:\Users\user\AppData\Roaming\win.exe, PE32 19->72 dropped 74 C:\Users\user\...\win.exe:Zone.Identifier, ASCII 19->74 dropped 39 wscript.exe 1 19->39         started        86 192.168.2.1 unknown unknown 22->86 76 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 22->76 dropped 41 conhost.exe 25->41         started        43 timeout.exe 1 25->43         started        78 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 27->78 dropped 45 conhost.exe 29->45         started        47 timeout.exe 29->47         started        80 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 31->80 dropped 49 conhost.exe 33->49         started        51 timeout.exe 33->51         started        file8 process9 process10 53 cmd.exe 1 39->53         started        process11 55 win.exe 14 3 53->55         started        58 conhost.exe 53->58         started        signatures12 98 Multi AV Scanner detection for dropped file 55->98 100 Machine Learning detection for dropped file 55->100 102 Contains functionality to steal Chrome passwords or cookies 55->102 104 4 other signatures 55->104 60 WerFault.exe 55->60         started        63 cmd.exe 55->63         started        65 win.exe 55->65         started        process13 dnsIp14 82 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 60->82 dropped 68 conhost.exe 63->68         started        70 timeout.exe 63->70         started        84 gdyhjjdhbvxgsfe.gotdns.ch 188.72.85.37, 2177, 49753 M247GB Netherlands 65->84 file15 process16
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/998273c5925d08f9eaa0aa3de2d044e1b6f4bcb304d0d5c41971e4ac23ba5745/
Threat name:
ByteCode-MSIL.Trojan.Heracles
Create hunting rule
Status:
Malicious
First seen:
2021-02-09 16:05:29 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=tgbhhrmsluept2vavi66fuce4g3pjpftatinlrazohskyi52k5cq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
4791861118e0be776fd14153e2feca7d25f5a91a6c32a997385f5ae272e3d7c8
RemcosRAT
4a94b062dbb9df940520146d100df5b019795d0f508d7ba89d24eb18725e1608
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5ab68910c53ccaea0aa6c9e51fa8ad92433cba369163f99f636973b32abda555
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5b10f4a23880b51923a0df3e9e3c37f40eb0d3cc93de7b463da62f936a501385
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8ad4673a5a2ee2234da8c27616549d2071d43e769850dad6b09ee95ed939d44c
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b4156e553eb5b0bad1d240dd170820106d6ca6bc0d1984a9d09030864349d964
RemcosRAT
c07fd0e28659f9346a6330682e6c598df98402f2b853b6e00fef908ce432ee42
RemcosRAT
da7f542b91835ba3090350c2936641058c361e332eda9222f0674dfcbefd4ce9
RemcosRAT
eea168e9c8f089b1c8aa25fe54e17f987ea0a85b24009197d77c08295f4cf2a4
RemcosRAT
f7e29cbf47c9804eb341836873ea6837be7a46639978f44d9ba2670d47e68d56
RemcosRAT
+ 1'523 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence ransomware rat
Link:
https://tria.ge/reports/210210-6czdv6q4ja/
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
Program crash
Enumerates physical storage devices
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:
gdyhjjdhbvxgsfe.gotdns.ch:2177
Unpacked files
SH256 hash:
998273c5925d08f9eaa0aa3de2d044e1b6f4bcb304d0d5c41971e4ac23ba5745
MD5 hash:
569e2b806bdb881fdc66e535242c423b
SHA1 hash:
125f527e7dd3663bd6fb9d200b3faffb6d3b0362
Link:
https://www.unpac.me/results/c6d08c01-5d10-4ae8-b14f-51e98ff1f3f3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/998273c5925d08f9eaa0aa3de2d044e1b6f4bcb304d0d5c41971e4ac23ba5745

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: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: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 998273c5925d08f9eaa0aa3de2d044e1b6f4bcb304d0d5c41971e4ac23ba5745

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/995739/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/116398/

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