MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41700fe0e7369606d4c4739998f3eab0b911c42261b36152424b3907b755e567. 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: 18


Intelligence 18 IOCs YARA 20 File information Comments

SHA256 hash: 41700fe0e7369606d4c4739998f3eab0b911c42261b36152424b3907b755e567
SHA3-384 hash: a98a60217b32ef2d70049a52627690417f2cb4d2e4079113a4737f06304d95eaa6880576ee23af7738ba583ef312d86d
SHA1 hash: ca5bd8786b2146efc8bb8fa53caad929895f68fc
MD5 hash: cdaca42b390158e2a994f0a5115db451
humanhash: november-snake-pip-grey
File name:rFedexShippingDocument.exe
Download: download sample
Signature RemcosRAT
File size:1'203'712 bytes
First seen:2025-08-16 11:31:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:PnlOfGrYDpozmJjF2ABk1Err1X6h4Ft3LklH18u2qW+Wc+Z:Pll8oSJjkwrrd5t3y18uX+
TLSH T18F45236F3A596422CE7949F98292104053BC67AE95C3E7D6AD423DF03D53BDA3E01339
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter FXOLabs
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
91
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
rFedexShippingDocument.exe
Verdict:
Malicious activity
Analysis date:
2025-08-16 11:33:12 UTC
Tags:
remcos rat auto-startup remote netreactor

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
81.4%
Tags:
autorun spawn hype sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Unauthorized injection to a recently created process
Restart of the analyzed sample
Сreating synchronization primitives
Creating a file
Creating a window
Setting a keyboard event handler
Connection attempt
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 masquerade obfuscated obfuscated packed remcos
Verdict:
inconclusive
YARA:
12 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.43 Win 32 Exe x86
Threat name:
Win32.Infostealer.Tinba
Status:
Malicious
First seen:
2025-08-16 07:39:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
18 of 23 (78.26%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
Similar samples:
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery rat
Behaviour
Modifies registry class
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Drops startup file
Remcos
Remcos family
Malware Config
C2 Extraction:
212.162.149.164:443
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
41700fe0e7369606d4c4739998f3eab0b911c42261b36152424b3907b755e567
MD5 hash:
cdaca42b390158e2a994f0a5115db451
SHA1 hash:
ca5bd8786b2146efc8bb8fa53caad929895f68fc
SH256 hash:
6f8fe9c97789e0d4cc4526bb93ec55ff53275a60445dd820d6908dc59928fb80
MD5 hash:
ebbf810c3b06f59960852e72386e87b8
SHA1 hash:
ad6aa8e89055408272f8fa6568754e8afd2dddb0
Detections:
win_remcos_w0 Remcos malware_windows_remcos_rat win_remcos_rat_unpacked INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
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:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:iexplorer_remcos
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:NET
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Rule name:pe_imphash
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:Remcos
Author:kevoreilly
Description:Remcos Payload
Rule name:remcos_
Author:Michelle Khalil
Description:This rule detects unpacked remcos malware samples.
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:ThreadControl__Context
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Trojan_Remcos_b296e965
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set
Rule name:win_remcos_rat_unpacked
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:win_remcos_w0
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Author:Matthew @ Embee_Research

File information


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

Malspam

RemcosRAT

Executable exe 41700fe0e7369606d4c4739998f3eab0b911c42261b36152424b3907b755e567

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments