MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6f1ad3eb90ca343bc29ee8add5dc07c196149af8ff6ba1d28fbd2e88e27677cc. 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: 16


Intelligence 16 IOCs YARA 27 File information Comments

SHA256 hash: 6f1ad3eb90ca343bc29ee8add5dc07c196149af8ff6ba1d28fbd2e88e27677cc
SHA3-384 hash: 1384a809e09642aa09f606cba749ea00246fe932a3f50a93d7ee8b025af9f3d11193510dbb69088dcf56fec865e02573
SHA1 hash: 751fadcf52d74a9dde152bab3a9ff5e8b942293c
MD5 hash: c70bd045a02f55cd3a9623918fb85aeb
humanhash: blue-summer-april-robin
File name:Invoice, Delivery Note, Packing List _AWB.cmd
Download: download sample
Signature RemcosRAT
File size:1'330'176 bytes
First seen:2025-07-23 03:47:45 UTC
Last seen:2025-08-12 14:18:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'750 x AgentTesla, 19'656 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 24576:vYl8pdcV8dwWOkuCd/tFICUiz71EjeersrWFJYiut2At6WAcuzcpsoL0DFTW4OWu:U8pdcV8dwVkuCd/tFIbK7q6egaF2y/WR
TLSH T1575533E47FBCCB25D1FCF1BF8E23471403A6E5E22847E9752E95582C5CE2A106E4162B
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 threatcat_ch
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
86
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
Invoice, Delivery Note, Packing List _AWB.cmd
Verdict:
Malicious activity
Analysis date:
2025-07-23 03:50:53 UTC
Tags:
auto-startup rat remcos remote

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

Behaviour
Creating a window
Creating a file in the %AppData% directory
Launching a process
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Command shell drops VBS files
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Detected Remcos RAT
Drops VBS files to the startup folder
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Sigma detected: Drops script at startup location
Sigma detected: Remcos
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1742416 Sample: Invoice, Delivery Note, Pac... Startdate: 23/07/2025 Architecture: WINDOWS Score: 100 29 email-server.xyz 2->29 31 geoplugin.net 2->31 37 Suricata IDS alerts for network traffic 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 45 14 other signatures 2->45 8 Invoice, Delivery Note, Packing List _AWB.cmd.exe 5 2->8         started        12 wscript.exe 1 2->12         started        signatures3 43 Performs DNS queries to domains with low reputation 29->43 process4 file5 23 C:\Users\user\AppData\...\HasCurrent.exe, PE32 8->23 dropped 25 C:\Users\user\AppData\...\HasCurrent.vbs, ASCII 8->25 dropped 27 C:\Users\...\HasCurrent.exe:Zone.Identifier, ASCII 8->27 dropped 49 Command shell drops VBS files 8->49 51 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->51 53 Writes to foreign memory regions 8->53 55 Injects a PE file into a foreign processes 8->55 14 InstallUtil.exe 2 14 8->14         started        57 Windows Scripting host queries suspicious COM object (likely to drop second stage) 12->57 18 HasCurrent.exe 2 12->18         started        signatures6 process7 dnsIp8 33 geoplugin.net 178.237.33.50, 49719, 80 ATOM86-ASATOM86NL Netherlands 14->33 35 email-server.xyz 216.250.253.13, 2990, 49717 AS-TIERP-19019US United States 14->35 59 Detected Remcos RAT 14->59 61 Contains functionalty to change the wallpaper 14->61 63 Contains functionality to steal Chrome passwords or cookies 14->63 73 3 other signatures 14->73 65 Antivirus detection for dropped file 18->65 67 Multi AV Scanner detection for dropped file 18->67 69 Writes to foreign memory regions 18->69 71 Injects a PE file into a foreign processes 18->71 20 InstallUtil.exe 18->20         started        signatures9 process10 signatures11 47 Detected Remcos RAT 20->47
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable PE (Portable Executable) SOS: 0.44 Win 32 Exe x86
Verdict:
Malicious
Threat:
VHO:Trojan-PSW.MSIL.PureLogs
Threat name:
Win32.Trojan.Heracles
Status:
Malicious
First seen:
2025-07-23 01:14:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
Similar samples:
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery rat
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Drops startup file
Remcos
Remcos family
Malware Config
C2 Extraction:
email-server.xyz:2990
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
6f1ad3eb90ca343bc29ee8add5dc07c196149af8ff6ba1d28fbd2e88e27677cc
MD5 hash:
c70bd045a02f55cd3a9623918fb85aeb
SHA1 hash:
751fadcf52d74a9dde152bab3a9ff5e8b942293c
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:NETexecutableMicrosoft
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:REMCOS_RAT_variants
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_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
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 6f1ad3eb90ca343bc29ee8add5dc07c196149af8ff6ba1d28fbd2e88e27677cc

(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 (GUARD_CF)high

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