MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 df2477331ba3794554b8ba8d903d76140dd2b8c80409ba8d003c380d46e5f155. 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: 14
| SHA256 hash: | df2477331ba3794554b8ba8d903d76140dd2b8c80409ba8d003c380d46e5f155 |
|---|---|
| SHA3-384 hash: | 083fe5beecfe590f72d52e8512cbd14e0f566c3dae0740e9571e5778a52e8c806e5bc52ae8da173f76c9b89621ff24c9 |
| SHA1 hash: | ed9b07f699198089f30523cfdd35692be6c407a8 |
| MD5 hash: | 81b8e60a15290117cbc1af61ad7885ea |
| humanhash: | eight-berlin-muppet-autumn |
| File name: | 81b8e60a15290117cbc1af61ad7885ea.exe |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 509'493 bytes |
| First seen: | 2023-03-13 14:29:11 UTC |
| Last seen: | 2023-03-13 16:42:36 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader) |
| ssdeep | 12288:/Yel0rSnmt6n3QgJJTQefuoN0A+2Grdv/+c/:/Yel0Omo3QgJJ/fuLA+2+OE |
| Threatray | 3'496 similar samples on MalwareBazaar |
| TLSH | T19EB42309B190EEDBD8B246762D3C3F655EC62C1629E5A35F03E0474A76783856F0E3A3 |
| TrID | 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10523/12/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4505/5/1) |
| File icon (PE): |  |
| dhash icon | b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla) |
| Reporter |  abuse_ch |
| Tags: | exe RAT RemcosRAT |
Intelligence
File Origin
# of uploads :
2
# of downloads :
239
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
ID:
1
File name:
QUOTATION_220377FIB541F.doc
Verdict:
Malicious activity
Analysis date:
2023-03-13 09:44:26 UTC
Tags:
exploit cve-2017-11882 loader rat remcos keylogger
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Result
Verdict:
Malware
Maliciousness:
Behaviour
Launching a process
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Setting a keyboard event handler
DNS request
Connecting to a non-recommended domain
Sending a custom TCP request
Sending an HTTP GET request
Creating a file
Unauthorized injection to a recently created process by context flags manipulation
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
comodo formbook nemesis overlay packed remcos shell32.dll zusy
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Verdict:
Unknown
Result
Threat name:
Remcos
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Casdet
Status:
Malicious
First seen:
2023-03-13 09:17:28 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 24 (83.33%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 3'486 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos botnet:remotehost rat
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Remcos
Malware Config
C2 Extraction:
bmarch459.sytes.net:6110
Unpacked files
SH256 hash:
f88365ff7e344fc011f2a056cfd9ae1979a503c395944eafa04abe44e8d516c2
MD5 hash:
cd47ea660f5279cc21814ad3b08e1bd0
SHA1 hash:
a68d901af6d95835bcbda97f6594338f1bf81ce0
SH256 hash:
df2477331ba3794554b8ba8d903d76140dd2b8c80409ba8d003c380d46e5f155
MD5 hash:
81b8e60a15290117cbc1af61ad7885ea
SHA1 hash:
ed9b07f699198089f30523cfdd35692be6c407a8
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: | iexplorer_remcos |
|---|---|
| Author: | iam-py-test |
| Description: | Detect iexplorer being taken over by Remcos |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) |
| Rule name: | Remcos |
|---|---|
| Author: | kevoreilly |
| Description: | Remcos Payload |
| Rule name: | REMCOS_RAT_variants |
|---|
| Rule name: | shellcode |
|---|---|
| Author: | nex |
| Description: | Matched shellcode byte patterns |
| Rule name: | Windows_Trojan_Remcos_b296e965 |
|---|---|
| Author: | Elastic Security |
| Rule name: | win_remcos_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Detects win.remcos. |
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
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