MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 10c5df44b26355f12a62e1243923e9156150f7c86c0ee0f0b25555fae9fca5bd. 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: 12


Intelligence 12 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 10c5df44b26355f12a62e1243923e9156150f7c86c0ee0f0b25555fae9fca5bd
SHA3-384 hash: ad00802b4b815f63bde0d04352502b07d517badf4878e42e23d31eabbc12857b164bbc961b9e30abcb91b4ede7f77675
SHA1 hash: 6d51b55e47da9ffdee77c70e74c5096b381552f6
MD5 hash: 9b2631152e7c689b928c50e5c1b92c0d
humanhash: eight-johnny-london-finch
File name:Summary of agency instructions.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'679'360 bytes
First seen:2021-06-02 06:00:14 UTC
Last seen:2021-06-02 07:00:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'652 x Formbook, 12'246 x SnakeKeylogger)
ssdeep 3072:BnSHk/fX/Jdq7X/8dQ1CJNcTbBoWWoWboW2oWFoW0o43o40vKProy51J9o0syoo6:
Threatray 1'791 similar samples on MalwareBazaar
TLSH 53755FB531DA2A46BD37B80FC746B1E1870F73EA25BE2209B54817814F1578A31F47AB
Reporter cocaman
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
138
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Summary of agency instructions.exe
Verdict:
Suspicious activity
Analysis date:
2021-06-02 01:52:43 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/fee44c5e-0f49-4d1b-8d22-466ea7247311

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/163925/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.772.618.12663.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Adding an access-denied ACE
Creating a file
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Creating a process from a recently created file
Setting a keyboard event handler
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
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
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/795634
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to capture and log keystrokes
Contains functionality to detect virtual machines (IN, VMware)
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
Detected Remcos RAT
Found malware configuration
Hides threads from debuggers
Injects a PE file into a foreign processes
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 428030 Sample: Summary of agency instructi... Startdate: 02/06/2021 Architecture: WINDOWS Score: 100 92 Found malware configuration 2->92 94 Malicious sample detected (through community Yara rule) 2->94 96 Multi AV Scanner detection for submitted file 2->96 98 11 other signatures 2->98 10 Summary of agency instructions.exe 4 2->10         started        14 svchosts.exe 3 2->14         started        16 svchosts.exe 2->16         started        process3 file4 84 C:\...\Summary of agency instructions.exe.log, ASCII 10->84 dropped 114 Hides threads from debuggers 10->114 18 Summary of agency instructions.exe 1 5 10->18         started        21 cmd.exe 1 10->21         started        116 Injects a PE file into a foreign processes 14->116 24 WerFault.exe 14->24         started        26 cmd.exe 1 14->26         started        28 svchosts.exe 14->28         started        30 WerFault.exe 14->30         started        32 WerFault.exe 16->32         started        34 cmd.exe 16->34         started        36 2 other processes 16->36 signatures5 process6 file7 76 C:\Users\user\AppData\...\svchosts.exe, PE32 18->76 dropped 78 C:\Users\...\svchosts.exe:Zone.Identifier, ASCII 18->78 dropped 38 cmd.exe 1 18->38         started        100 Uses ping.exe to sleep 21->100 102 Uses ping.exe to check the status of other devices and networks 21->102 41 conhost.exe 21->41         started        43 timeout.exe 1 21->43         started        80 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 24->80 dropped 45 conhost.exe 26->45         started        47 timeout.exe 1 26->47         started        82 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 32->82 dropped 49 conhost.exe 34->49         started        51 timeout.exe 34->51         started        signatures8 process9 signatures10 112 Uses ping.exe to sleep 38->112 53 svchosts.exe 3 38->53         started        56 PING.EXE 1 38->56         started        59 conhost.exe 38->59         started        process11 dnsIp12 104 Multi AV Scanner detection for dropped file 53->104 106 Machine Learning detection for dropped file 53->106 108 Contains functionality to steal Chrome passwords or cookies 53->108 110 3 other signatures 53->110 61 svchosts.exe 1 3 53->61         started        65 WerFault.exe 53->65         started        68 cmd.exe 1 53->68         started        86 127.0.0.1 unknown unknown 56->86 88 192.168.2.1 unknown unknown 56->88 signatures13 process14 dnsIp15 90 185.244.26.244, 49741, 49744, 49745 VAMU-ASIP-TRANSITVAMURU Netherlands 61->90 118 Installs a global keyboard hook 61->118 74 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 65->74 dropped 70 conhost.exe 68->70         started        72 timeout.exe 1 68->72         started        file16 signatures17 process18
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/10c5df44b26355f12a62e1243923e9156150f7c86c0ee0f0b25555fae9fca5bd/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-05-27 13:39:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
28 of 47 (59.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=cdc56rfsmnk7cktc4esdsi7jcvqvb56inqhob4fskvk7v2p4uw6q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
023946cb10325407c30c9ec45ecd241d5e0e3f9ebaeffe2ab12f8cd5f0646013
RemcosRAT
3ce969a94f4bc8dec526e3551626d7e3639bae986304deba85e8f29f039fe345
RemcosRAT
5b474ca6fc8158bd6f14d53bca8962f25db3392dfe324f49ddf376610bd785e4
RemcosRAT
5f4e4a43a01b235d781c6888198b18750529dda9fc4727727940115090e06a6d
RemcosRAT
753883fa972dda966abb3adad3cfc94f0a82ca128d1908df58bac3ba93e60bd3
RemcosRAT
753cc07b3d3e9d5cc44061f9f5b2933d2e1f7f18155f9c17346592e254eab0c2
RemcosRAT
762d689595557fa3064907433659411b95132e554f7d17fcf62d1a77db51e3e5
RemcosRAT
aad53b1b6e50e7ee426f0790b5497cb7d63704a6775248f258db1263762761bb
RemcosRAT
ac7d008a3ac44bc8dfe3edbbc8542ed5b51bcf911b67eb8e9a715ebb5250ad27
RemcosRAT
ce4962d3126223b4bd68704159cbdc7479fb2df4263fb9f3d57492e770b74a94
RemcosRAT
+ 1'781 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/210602-wnjhza9ffn/
Behaviour
Delays execution with timeout.exe
Runs ping.exe
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:
185.244.26.244:5888
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/10c5df44b26355f12a62e1243923e9156150f7c86c0ee0f0b25555fae9fca5bd

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: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: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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

Malspam

AgentTesla

zip 7f682931aa1054d803b3765ec66454e84da6b6d204153f5b0d4e886397b9275e

RemcosRAT

Executable exe 10c5df44b26355f12a62e1243923e9156150f7c86c0ee0f0b25555fae9fca5bd

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 7f682931aa1054d803b3765ec66454e84da6b6d204153f5b0d4e886397b9275e
Cape
Cape
https://www.capesandbox.com/analysis/163925/

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