MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d3bb945c2ee32337273af856445e85e036435e205fe1f100734aeb873d35cf16. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments

SHA256 hash: d3bb945c2ee32337273af856445e85e036435e205fe1f100734aeb873d35cf16
SHA3-384 hash: 4bcbd93b2ddb2cdaa50be1e8e1cfa7d1ac78945fd1f187f8c27f9885162617b0319d9161e9016de8c33d0e9ead6f522b
SHA1 hash: b56f1ba0fcf0f51f99d2abbf29cdc9737c15af3d
MD5 hash: bbb921a6b68bbbe38b1bb9a4fa345607
humanhash: lima-social-fillet-mars
File name:d3bb945c2ee32337273af856445e85e036435e205fe1f100734aeb873d35cf16
Download: download sample
Signature RemcosRAT
File size:528'249 bytes
First seen:2026-05-08 13:23:39 UTC
Last seen:2026-05-20 16:51:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 573bb7b41bc641bd95c0f5eec13c233b (42 x GuLoader, 26 x RemcosRAT, 16 x VIPKeylogger)
ssdeep 12288:j+5FHaq59UcRsgy6izNNXx/hgvVOvpT+B9vcjOGL:j+mU95ugypWI+B9vcjvL
TLSH T1C9B423A93191D83FF27915B2C9628FFB2E467E60F544884F87447C6F7F306604A2D68A
TrID 50.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
10.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.5% (.EXE) Win64 Executable (generic) (6522/11/2)
8.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.2% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter adrian__luca
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
129
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-05-08 20:45:51 UTC
Tags:
rat remcos

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% subdirectories
Unauthorized injection to a recently created process
Restart of the analyzed sample
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug fingerprint installer installer installer-heuristic microsoft_visual_cc nsis packed soft-404
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-04-19T22:35:00Z UTC
Last seen:
2026-05-09T07:33:00Z UTC
Hits:
~1000
Gathering data
Threat name:
Win32.Trojan.Kepavll
Status:
Malicious
First seen:
2026-04-20 01:26:08 UTC
File Type:
PE (Exe)
Extracted files:
10
AV detection:
21 of 36 (58.33%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:guloader family:remcos botnet:remotehost discovery downloader rat
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in System32 directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Contacts third-party web service commonly abused for C2
Loads dropped DLL
Family: Guloader,Cloudeye
Family: Remcos
Malware Config
C2 Extraction:
204.10.160.226:2404
Unpacked files
SH256 hash:
d3bb945c2ee32337273af856445e85e036435e205fe1f100734aeb873d35cf16
MD5 hash:
bbb921a6b68bbbe38b1bb9a4fa345607
SHA1 hash:
b56f1ba0fcf0f51f99d2abbf29cdc9737c15af3d
SH256 hash:
8b4c47c4cf5e76ec57dd5a050d5acd832a0d532ee875d7b44f6cdaf68f90d37c
MD5 hash:
9b38a1b07a0ebc5c7e59e63346ecc2db
SHA1 hash:
97332a2ffcf12a3e3f27e7c05213b5d7faa13735
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:Detect_NSIS_Nullsoft_Installer
Author:Obscurity Labs LLC
Description:Detects NSIS installers by .ndata section + NSIS header string
Rule name:VECT_Ransomware
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

File information


The table below shows additional information about this malware sample such as delivery method and external references.

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