MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 fb687141c9dff2926002ee0e5a4473e37e771fe210caf292aeff920d15439528. 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
| SHA256 hash: | fb687141c9dff2926002ee0e5a4473e37e771fe210caf292aeff920d15439528 |
|---|---|
| SHA3-384 hash: | 86aa4fae81c610c92f145dd0726e91e0db5afb4676c7580b82b8bf52f6d1f108662cd6c4920f07e2b5bc5203c0b51518 |
| SHA1 hash: | 30883b8e14afb05eea9a6e931ab5fce359568aaf |
| MD5 hash: | c1785d8700149baeae56390c9d543d7b |
| humanhash: | stream-aspen-foxtrot-charlie |
| File name: | c1785d8700149baeae56390c9d543d7b |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 1'121'280 bytes |
| First seen: | 2021-09-08 12:44:17 UTC |
| Last seen: | 2021-09-08 14:41:42 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger) |
| ssdeep | 12288:soLbL4WXPdx/icme5oKCQmiizbwJomufkdHdu/H5aw34oc:zb5/iFSbC4yUJofoduUwj |
| Threatray | 577 similar samples on MalwareBazaar |
| TLSH | T13D350B2DF5BD9A16926DCACDC7D35417E389457B3322992017B7431EA202B82F483F6E |
| Reporter |  zbetcheckin |
| Tags: | 32 exe RemcosRAT |
Intelligence
File Origin
# of uploads :
2
# of downloads :
123
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Statement of account for urgent payments.xlsx
Verdict:
Malicious activity
Analysis date:
2021-09-08 11:48:07 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file in the %AppData% subdirectories
Creating a file
Creating a process from a recently created file
Running batch commands
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Malicious
Result
Threat name:
Remcos
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Detection:
remcos
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-09-08 09:09:42 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
17 of 28 (60.71%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 567 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos botnet:remotehost persistence rat
Behaviour
Creates scheduled task(s)
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
45.137.22.77:5888
Unpacked files
SH256 hash:
fde77ba95771eb9e1e9694c513a022a6b738fe0fc99bb20aaedc66a250db89db
MD5 hash:
00a358d59a96aaa1c4874f0c678bb566
SHA1 hash:
ad263cdb73d97ed83761abf9dcc621fe6b60eae2
SH256 hash:
0fde24c1371b53c15f6c1ce207032e81218d525fbe7b4126b94de85e9cff2f4e
MD5 hash:
24e6c42ad0d91be3362ae34b6dcffded
SHA1 hash:
d504fd60e91d5c20fa7599b1f8824ad261428c1e
Detections:
win_remcos_g0
SH256 hash:
224d1d71782a90bbfcee17d04b757a14a8cd28bc342ce49533e039c9f3c9e96a
MD5 hash:
6fdf398685af06fc1c30bb617108d3ef
SHA1 hash:
55c89303999e4e8c5f5d2e682603b2cef6b88adc
SH256 hash:
fb687141c9dff2926002ee0e5a4473e37e771fe210caf292aeff920d15439528
MD5 hash:
c1785d8700149baeae56390c9d543d7b
SHA1 hash:
30883b8e14afb05eea9a6e931ab5fce359568aaf
Malware family:
Remcos
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
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: | pe_imphash |
|---|
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
Comments
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