MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 c9a855a5da51e96ec9c3c59f6331939b49bbdee2d9309f61ce92e326abdb3895. 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
| SHA256 hash: | c9a855a5da51e96ec9c3c59f6331939b49bbdee2d9309f61ce92e326abdb3895 |
|---|---|
| SHA3-384 hash: | 59b3f7e0d95c3bec1a87161f964cd38d29e47d75764ec444284885e80e41a2a9cf8d3bf11571178c3431ffdffd659cf7 |
| SHA1 hash: | 8ddd627b8f77d01d3f20541e66c43f6196573e12 |
| MD5 hash: | 92a24000ceaaf6dfffe49237ce46c711 |
| humanhash: | nitrogen-artist-tango-fillet |
| File name: | Rbmmuoavjkz8.exe |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 1'230'552 bytes |
| First seen: | 2020-11-12 06:15:46 UTC |
| Last seen: | 2024-07-24 21:25:34 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 12288:Cusu2uICnPI2KKp7r2240gtbX7tAzesqGUM1K4LNujv/Lx+:k+ |
| Threatray | 1'251 similar samples on MalwareBazaar |
| TLSH | CC45453C5A8C1963D177A276A8BF0586F9E46D8672782C4B01C33688AD7EF027DD634D |
| Reporter |  GovCERT_CH |
| Tags: | RemcosRAT |
Intelligence
File Origin
# of uploads :
3
# of downloads :
118
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
DNS request
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Setting a global event handler for the keyboard
Enabling autorun by creating a file
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
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
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
Creates an undocumented autostart registry key
Detected Remcos RAT
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: Remcos
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Status:
Malicious
First seen:
2020-11-12 00:38:38 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 1'241 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos rat
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Remcos
Unpacked files
SH256 hash:
208f9ada40fbf6883880e2bd538d39bd70c55f4ec6ba410bad2c242371c1867b
MD5 hash:
9231b0ad9f9f8b1b9d37130104d8c396
SHA1 hash:
7bf04bb4b5107bbc64e4412ded2d33db4be1b15b
SH256 hash:
83c08f0721c8b0c96e3d6a8f3ccaf5c96fbcc427d574625c34424c3429fefaa1
MD5 hash:
3c5dbcc3bb27e913e14efd8054811373
SHA1 hash:
b0eba9388abddaef9d5aa49ccd5dbab2924cced0
SH256 hash:
1556a49e97e5a021445cb5cb0ec8e266386090722927a42e9edefa6c89412916
MD5 hash:
08009ce77feecd3ef26b23b6515178d4
SHA1 hash:
c73239ba375ec6332d5c6a6864c4489e1e28be16
Detections:
win_remcos_g0
win_remcos_auto
SH256 hash:
c9a855a5da51e96ec9c3c59f6331939b49bbdee2d9309f61ce92e326abdb3895
MD5 hash:
92a24000ceaaf6dfffe49237ce46c711
SHA1 hash:
8ddd627b8f77d01d3f20541e66c43f6196573e12
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 |
|---|---|
| Author: | abuse.ch |
| Rule name: | Chrome_stealer_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Chrome in files like avemaria |
| Rule name: | Keylog_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Contains Keylog |
| Rule name: | Parallax |
|---|---|
| Author: | @bartblaze |
| Description: | Identifies Parallax RAT. |
| Rule name: | Remcos |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Remcos in memory |
| Rule name: | remcos_rat |
|---|---|
| Author: | jeFF0Falltrades |
| Rule name: | REMCOS_RAT_variants |
|---|
| Rule name: | win_remcos_auto |
|---|---|
| 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.
9f0db0074ecbbf8a1e3ecb88c682bf12f33f695995b831bde1daa37ab0e3655b
Dropped by
MD5 8dd10710fc3d25894372ece4278cfbb5
Dropped by
SHA256 9f0db0074ecbbf8a1e3ecb88c682bf12f33f695995b831bde1daa37ab0e3655b
Dropped by
RemcosRAT
Delivery method
Distributed via e-mail attachment
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.