MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 5000f900d0d52fb1b6634d0437711ab10c9184d080c852f17b2fb114a35446a8. 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: 8
Maldoc score: 11
| SHA256 hash: | 5000f900d0d52fb1b6634d0437711ab10c9184d080c852f17b2fb114a35446a8 |
|---|---|
| SHA3-384 hash: | 62c81aae67c9ac6d5ab97d24610b9db141add74e6bc200ceaf7c124742799d15fe69e467567824968ddd055312a25f01 |
| SHA1 hash: | 7bb0d46b6a36833178180c57b35c2b2bee02eb36 |
| MD5 hash: | 98d926593ca28b2b418fb4208b374c9c |
| humanhash: | delta-kilo-carpet-uranus |
| File name: | etat_comp_du27082021.xlam |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 17'815 bytes |
| First seen: | 2021-09-01 09:27:38 UTC |
| Last seen: | Never |
| File type: |  xlsx |
| MIME type: | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
| ssdeep | 384:AKlRn4Nq7lgTXSLPu/IasgZY2esqqABF3dI2IgHgR6fQITMaXIG:AKlFRlKCLPFaO27M7I6gRTIgKIG |
| TLSH | T1DF82D08DC196B839DB030D3E556C96E0E208384246B792BF5C18F3377982A87934F1CA |
| Reporter |  J_Hunt3r |
| Tags: | DESKTOP-group remcos RemcosRAT xlsx |
Office OLE Information
This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.
OLE id
| Maldoc score: 11 |
OLE dump
MalwareBazaar was able to identify 7 sections in this file using oledump:
| Section ID | Section size | Section name |
|---|---|---|
| A1 | 435 bytes | PROJECT |
| A2 | 62 bytes | PROJECTwm |
| A3 | 977 bytes | VBA/Sheet1 |
| A4 | 12458 bytes | VBA/ThisWorkbook |
| A5 | 4038 bytes | VBA/_VBA_PROJECT |
| A6 | 525 bytes | VBA/dir |
OLE vba
MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:
| Type | Keyword | Description |
|---|---|---|
| AutoExec | Workbook_Open | Runs when the Excel Workbook is opened |
| Suspicious | Open | May open a file |
| Suspicious | Run | May run an executable file or a system command |
| Suspicious | CreateObject | May create an OLE object |
| Suspicious | Hex Strings | Hex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all) |
| Suspicious | Base64 Strings | Base64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all) |
Intelligence
File Origin
# of uploads :
1
# of downloads :
217
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Legit
File type:
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Has a screenshot:
False
Contains macros:
True
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Sending a UDP request
Creating a window
Creating a process with a hidden window
Sending an HTTP GET request to an infection source
Launching a process
Launching the default Windows debugger (dwwin.exe)
Connection attempt to an infection source
Launching a process by exploiting the app vulnerability
Unauthorized injection to a system process
Result
Verdict:
Malicious
File Type:
Excel File with Macro
Result
Verdict:
MALICIOUS
Link:
Details
Base64 Encoded Powershell Directives
Detected one or more base64 encoded Powershell directives.
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
IPv4 Dotted Quad URL
A URL was detected referencing a direct IP address, as opposed to a domain name.
Base64 Encoded URL
Detected an ANSI or UNICODE http:// or https:// base64 encoded URL prefix.
Document With No Content
Document contains little or no semantic information.
Result
Threat name:
Remcos
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Detected Remcos RAT
Document contains an embedded VBA macro which may execute processes
Document contains an embedded VBA with base64 encoded strings
Document exploit detected (process start blacklist hit)
Encrypted powershell cmdline option found
Found malware configuration
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
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: Suspicious Encoded PowerShell Command Line
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Threat name:
Script-Macro.Trojan.Amphitryon
Status:
Malicious
First seen:
2021-09-01 09:28:04 UTC
AV detection:
8 of 45 (17.78%)
Threat level:
5/5
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos botnet:remotehost macro rat
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Suspicious use of SetThreadContext
Blocklisted process makes network request
Process spawned unexpected child process
Remcos
Malware Config
C2 Extraction:
toornavigator.sytes.net:35500
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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