MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b84e135688dd74c9d64702ee578dc2f4cf77c3a34e6db45b501ffea622dc8259. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b84e135688dd74c9d64702ee578dc2f4cf77c3a34e6db45b501ffea622dc8259
SHA3-384 hash: ceac3575d6742dfe0c9d8bae388306c4b86d74bdcf01bd8150c33a615ac6420bfc17ca4739f6c1d0db9b8f5519690e77
SHA1 hash: fd3b6fbf655e9fbc0fa00e97f778bf08dcaddd58
MD5 hash: 82ee77adad4c517c60e2a48fc30c90c5
humanhash: hawaii-monkey-berlin-delta
File name:FT24249304-Monthly_GST_Invoice-PAYOUT.pdf.bat
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:604'672 bytes
First seen:2025-06-23 09:12:16 UTC
Last seen:2025-06-30 07:02:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:sV6ovTzT5/N9d+s+z55GZYuXaJQ9+fu0XkpIOvKzEAmDy:0vTzdpezoaO9+W04NCr
Threatray 81 similar samples on MalwareBazaar
TLSH T16DD4F199B716AE54C80E07B6C827555484E64F5FE066F01E20EE3EAB7F3634A408FD87
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
dhash icon 68d8d8c8d9a9c1d9 (96 x SnakeKeylogger, 67 x RemcosRAT, 66 x Formbook)
Reporter adrian__luca
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
428
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
FT24249304-Monthly_GST_Invoice-PAYOUT.pdf.bat.exe
Verdict:
Malicious activity
Analysis date:
2025-06-23 09:17:25 UTC
Tags:
netreactor remcos rat
Link:
https://app.any.run/tasks/73baa8c4-93f7-48ee-ad34-07946fd8b398

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/10650/
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.13387.4373.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68591ab5b06783b9ebd6ab42
Tags:
keylog micro spawn
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
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
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Setting a keyboard event handler
Connection attempt
Creating a file in the %AppData% subdirectories
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/68591af43faf8fcd7d3c2979/reports/c86d97d0-406e-4406-9783-aeea259bc311/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/b84e135688dd74c9d64702ee578dc2f4cf77c3a34e6db45b501ffea622dc8259
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/398179f6-d7d8-43f5-b27e-1a8686809922
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1720759
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to capture and log keystrokes
Contains functionality to detect virtual machines (IN, VMware)
Contains functionality to inject code into remote processes
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
Detected Remcos RAT
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1720759 Sample: FT24249304-Monthly_GST_Invo... Startdate: 23/06/2025 Architecture: WINDOWS Score: 100 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus / Scanner detection for submitted sample 2->53 55 15 other signatures 2->55 7 OATrWgSoUBYa.exe 5 2->7         started        11 FT24249304-Monthly_GST_Invoice-PAYOUT.pdf.bat.exe 7 2->11         started        process3 file4 37 C:\Users\user\...\OATrWgSoUBYa.exe.log, ASCII 7->37 dropped 57 Antivirus detection for dropped file 7->57 59 Multi AV Scanner detection for dropped file 7->59 61 Detected Remcos RAT 7->61 69 6 other signatures 7->69 13 OATrWgSoUBYa.exe 7->13         started        16 schtasks.exe 1 7->16         started        39 C:\Users\user\AppData\...\OATrWgSoUBYa.exe, PE32 11->39 dropped 41 C:\Users\...\OATrWgSoUBYa.exe:Zone.Identifier, ASCII 11->41 dropped 43 C:\Users\user\AppData\Local\...\tmp3593.tmp, XML 11->43 dropped 45 FT24249304-Monthly...OUT.pdf.bat.exe.log, ASCII 11->45 dropped 63 Uses schtasks.exe or at.exe to add and modify task schedules 11->63 65 Adds a directory exclusion to Windows Defender 11->65 67 Injects a PE file into a foreign processes 11->67 18 FT24249304-Monthly_GST_Invoice-PAYOUT.pdf.bat.exe 1 2 11->18         started        21 powershell.exe 20 11->21         started        23 powershell.exe 23 11->23         started        25 schtasks.exe 1 11->25         started        signatures5 process6 dnsIp7 71 Detected Remcos RAT 13->71 73 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 13->73 27 conhost.exe 16->27         started        47 185.156.175.60, 42827, 49720, 49723 M247GB Romania 18->47 75 Installs a global keyboard hook 18->75 77 Loading BitLocker PowerShell Module 21->77 29 WmiPrvSE.exe 21->29         started        31 conhost.exe 21->31         started        33 conhost.exe 23->33         started        35 conhost.exe 25->35         started        signatures8 process9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b84e135688dd74c9d64702ee578dc2f4cf77c3a34e6db45b501ffea622dc8259
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) Win 32 Exe x86
Link:
https://app.malva.re/file/82ee77adad4c517c60e2a48fc30c90c5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b84e135688dd74c9d64702ee578dc2f4cf77c3a34e6db45b501ffea622dc8259/
Verdict:
Malicious
Link:
https://tip.neiki.dev/file/b84e135688dd74c9d64702ee578dc2f4cf77c3a34e6db45b501ffea622dc8259
Threat name:
Win32.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-06-20 05:41:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
21 of 24 (87.50%)
Threat level:
  1/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xbhbgvui3v2mtvshalxfpdoc6thxpq5djzw3iw2qd77kmiw4qjmq._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
remcos
Create hunting rule
Similar samples:
2d35c56c95a4d50110c2430290c73a7a071db6400507aa5886b10b9c17ef2c03
RemcosRAT
33cc55fef11d691d7728275b1e7dfc61520cef61bb0035de7dfb8e648f086f50
RemcosRAT
33ebc1a99345339f295f40833f9a603c278d2d7fab7d14d4577a1273689440ed
RemcosRAT
7fc8b3746ac1a4ce5a1b211f56034656c4017aef413aee72b0884ad5f0a94054
RemcosRAT
+ 71 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:in discovery execution rat
Link:
https://tria.ge/reports/250623-k7gqqstyd1/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Remcos
Remcos family
Malware Config
C2 Extraction:
185.156.175.60:42827
Verdict:
Informative
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/8f36c775-44e7-413b-960f-8b70a0d41197
Unpacked files
SH256 hash:
f0d38d62cf3df7160311e9222ccaab3e53917395a08d79cd0dd5b466b0bb087f
MD5 hash:
5abf8d0a4b84f90dff2d247c63f47a54
SHA1 hash:
13496911a6bd592ae6ddeb0a448d67b4382d598e
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Remcos
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
Remcos
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Link:
https://www.unpac.me/results/ea788c7d-2056-4d41-be9e-efb7563fca4b/
Parent samples :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 hash:
71de29c0debd15b22bffcc7e85f648096fb8f9950c2b75abcafef078f2ee1a09
MD5 hash:
bdb78138648fa4151ebfb29e69b1ec5a
SHA1 hash:
1ba512658ba4d70e0d2cca9f4540c660993b5d92
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/ea788c7d-2056-4d41-be9e-efb7563fca4b/
SH256 hash:
a80780c73d4b81d05016f39e9c658d3522492f8e06d87bf9e231894a9919d586
MD5 hash:
4e4cf0b95acc6fb44451c2d5a078dea0
SHA1 hash:
5e7f5e910bb5ddde378edd3a8f9029af2c6875fa
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/ea788c7d-2056-4d41-be9e-efb7563fca4b/
SH256 hash:
b84e135688dd74c9d64702ee578dc2f4cf77c3a34e6db45b501ffea622dc8259
MD5 hash:
82ee77adad4c517c60e2a48fc30c90c5
SHA1 hash:
fd3b6fbf655e9fbc0fa00e97f778bf08dcaddd58
Link:
https://www.unpac.me/results/ea788c7d-2056-4d41-be9e-efb7563fca4b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b84e135688dd74c9d64702ee578dc2f4cf77c3a34e6db45b501ffea622dc8259

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Runtime_Broker_Variant_1
Create hunting rule
Author:Sn0wFr0$t
Description:Detecting malicious Runtime Broker
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Malspam

RemcosRAT

Executable exe b84e135688dd74c9d64702ee578dc2f4cf77c3a34e6db45b501ffea622dc8259

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/10650/

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
CHECK_TRUST_INFORequires Elevated Execution (Unrestricted:true)high

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