MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 64b263385586b6b45fb0d483398d354245598521735cc7cdab0451235d49fa16. 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: 15


Intelligence 15 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 64b263385586b6b45fb0d483398d354245598521735cc7cdab0451235d49fa16
SHA3-384 hash: f21e40a47d67e7eda27239b92b3e701baca06aaa7e52bab82e3ebcb9aa1e020fa4e5de36420f3305ac4d57bfcb075a07
SHA1 hash: 6d4621d6c727d21624f721cc867e990c5683a79c
MD5 hash: d552dd83d9b08c216e666b5ee48964ab
humanhash: helium-lithium-nitrogen-charlie
File name:64b263385586b6b45fb0d483398d354245598521735cc7cdab0451235d49fa16
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:6'728'346 bytes
First seen:2025-05-07 12:12:31 UTC
Last seen:2025-05-09 13:46:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash eb5bc6ff6263b364dfbfb78bdb48ed59 (54 x Adware.Generic, 18 x RaccoonStealer, 8 x Adware.ExtenBro)
ssdeep 98304:1X4p1I5D82BG1VIsBQ/unAwdPAlg7dT6L6AWKK+Gw6c:9wIg2QQSNnNP5dT6L6AKwJ
Threatray 874 similar samples on MalwareBazaar
TLSH T1CF66CF13B684702FD0EB2B35493B8590993BB621B8629D7A37F44A0CCF355812F7B75A
TrID 49.8% (.EXE) Inno Setup installer (107240/4/30)
20.0% (.EXE) InstallShield setup (43053/19/16)
19.3% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9)
4.8% (.EXE) Win64 Executable (generic) (10522/11/4)
2.0% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon b298acbab2ca7a72 (2'327 x GCleaner, 1'631 x Socks5Systemz, 67 x RedLineStealer)
Reporter adrian__luca
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
436
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
22041597472.zip
Verdict:
Malicious activity
Analysis date:
2025-04-23 16:55:40 UTC
Tags:
arch-exec inno installer delphi rat remcos remote stealer mpress
Link:
https://app.any.run/tasks/ba4b0a41-5c60-4ec8-b9c5-0f9e0bf272e7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.Malware-gen.7057.2913.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=681a0ca0432e243ac3e49eed
Tags:
vmdetect autorun delphi
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Restart of the analyzed sample
Creating a process with a hidden window
Searching for the window
Creating a file in the %AppData% subdirectories
Moving a file to the %AppData% subdirectory
Launching a process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd embarcadero_delphi expand fingerprint installer invalid-signature lolbin overlay overlay packed regsvr32 remcos runonce signed
Link:
https://www.filescan.io/uploads/681b4e600b64e174c41be586/reports/4ea08067-93ad-428b-be0f-54acb66a8b70/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/64b263385586b6b45fb0d483398d354245598521735cc7cdab0451235d49fa16
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/8273af07-30b4-42c3-a69b-6d250bde9336
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1683259
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Sigma detected: Drops script at startup location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1683259 Sample: 4WWAWBlfY0.exe Startdate: 07/05/2025 Architecture: WINDOWS Score: 100 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 Multi AV Scanner detection for dropped file 2->55 57 8 other signatures 2->57 10 4WWAWBlfY0.exe 2 2->10         started        13 x32.exe 2 2->13         started        process3 file4 47 C:\Users\user\AppData\...\4WWAWBlfY0.tmp, PE32 10->47 dropped 16 4WWAWBlfY0.tmp 3 12 10->16         started        65 Writes to foreign memory regions 13->65 67 Injects a PE file into a foreign processes 13->67 19 AppLaunch.exe 13->19         started        signatures5 process6 file7 33 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 16->33 dropped 35 C:\Users\user\AppData\Local\...\_iscrypt.dll, PE32 16->35 dropped 21 4WWAWBlfY0.exe 2 16->21         started        process8 file9 37 C:\Users\user\AppData\...\4WWAWBlfY0.tmp, PE32 21->37 dropped 24 4WWAWBlfY0.tmp 5 28 21->24         started        process10 file11 39 C:\Users\user\AppData\...\x32.exe (copy), PE32 24->39 dropped 41 C:\Users\user\AppData\...\is-HG52B.tmp, PE32+ 24->41 dropped 43 C:\Users\user\AppData\...\is-CVJ3V.tmp, PE32+ 24->43 dropped 45 28 other files (2 malicious) 24->45 dropped 27 x32.exe 2 24->27         started        process12 signatures13 59 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 27->59 61 Writes to foreign memory regions 27->61 63 Injects a PE file into a foreign processes 27->63 30 AppLaunch.exe 4 27->30         started        process14 dnsIp15 49 192.3.3.139, 45682, 49702, 49704 AS-COLOCROSSINGUS United States 30->49
Score:
74%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/64b263385586b6b45fb0d483398d354245598521735cc7cdab0451235d49fa16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/64b263385586b6b45fb0d483398d354245598521735cc7cdab0451235d49fa16/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-04-23 11:20:32 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
20 of 36 (55.56%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mszggocvq23lix5q2sbttdjvijcvtbjbonomptnlarisgxkj7ila._file
Verdict:
malicious
Label(s):
purecrypter
Create hunting rule
remcos
Create hunting rule
Similar samples:
0f9eaa5bd9e8297ecd792d9b31345262be954035ee6ec3aa323374297f1f125f
RemcosRAT
324f40f7bb2056632449a02712d32fee5ea186d718346be31f89f8f7fab1f856
RemcosRAT
647795afb02b8cb60cc13831fc36314053594e0481f605003c8926764883adb4
RemcosRAT
652f9425904c1411899bffd5d6396a611b4b74a901e0b3481a808da904c76ccb
RemcosRAT
6714c82529a444b8ce3f8bfae085604f2618954394d7812e68f473ebfca78a26
RemcosRAT
78a5958d02189160abf7e588dada6295e444b6522a45b8f556878ff56058edbc
RemcosRAT
85a225ec318849b576b381f4153502bc0466f56ee1afd3ee1953a0f455fd3cf6
RemcosRAT
88d5346489cca6b4114b60889108d286c46144507e2011081e0c7080eeb18d03
RemcosRAT
b3f6657c2cc7f25df3037f269cce07616446231f034c45b06209c9bd4c40107e
RemcosRAT
d3626bd96d6a11668a6864a514fa77ebb3372a5f88069b4aba668b773e3d6946
RemcosRAT
error
RemcosRAT
+ 864 additional samples on MalwareBazaar
Result
Malware family:
donutloader
Create hunting rule
Score:
  10/10
Tags:
family:donutloader discovery loader
Link:
https://tria.ge/reports/250507-pdxmba1xg1/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Detects DonutLoader
DonutLoader
Donutloader family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/84f9db30-bb10-4682-960c-24602c6241c6
Unpacked files
SH256 hash:
64b263385586b6b45fb0d483398d354245598521735cc7cdab0451235d49fa16
MD5 hash:
d552dd83d9b08c216e666b5ee48964ab
SHA1 hash:
6d4621d6c727d21624f721cc867e990c5683a79c
Link:
https://www.unpac.me/results/9df51e1e-c64a-4e55-a08d-580b75b5ae53/
SH256 hash:
71fa524a63c486d6d67a36c71568b6c41d08af6d10c4f3bde865a680eca5e7c3
MD5 hash:
3afc69aded516499ad8cbdb631d9eab7
SHA1 hash:
ebf8f7c54e874a315179fddf8d50daa5fd63fe6b
Link:
https://www.unpac.me/results/9df51e1e-c64a-4e55-a08d-580b75b5ae53/
SH256 hash:
b3096a3afe4c928a9e28b7fe4a178d096824b2cf6467ffecd621bce393e0c9d2
MD5 hash:
33c385649112de4c370b3031e670d05b
SHA1 hash:
63e6f3acb96f9961961bfe9c62257c7f353a0922
Link:
https://www.unpac.me/results/9df51e1e-c64a-4e55-a08d-580b75b5ae53/
SH256 hash:
1a93f3e99afae583e7ad643c3a0850e7136cf727c6dead288f482214837f9b4c
MD5 hash:
797b09e2dcf988b4320ddcdd4cb936f0
SHA1 hash:
9ffd65ffb2f1e890160a5377c71fd6e5b46c8ea3
Link:
https://www.unpac.me/results/9df51e1e-c64a-4e55-a08d-580b75b5ae53/
SH256 hash:
44b8e6a310564338968158a1ed88c8535dece20acb06c5e22d87953c261dfed0
MD5 hash:
9c8886759e736d3f27674e0fff63d40a
SHA1 hash:
ceff6a7b106c3262d9e8496d2ab319821b100541
Link:
https://www.unpac.me/results/9df51e1e-c64a-4e55-a08d-580b75b5ae53/
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/64b263385586b6b45fb0d483398d354245598521735cc7cdab0451235d49fa16

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:Borland
Create hunting rule
Author:malware-lu
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:HUNTING_SUSP_TLS_SECTION
Create hunting rule
Author:chaosphere
Description:Detect PE files with .tls section that can be used for anti-debugging
Reference:Practical Malware Analysis - Chapter 16
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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)
Rule name:win_rat_generic
Create hunting rule
Author:Reedus0
Description:Rule for detecting generic RAT malware

File information

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

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
Reviews
IDCapabilitiesEvidence
SECURITY_BASE_APIUses Security Base APIadvapi32.dll::AdjustTokenPrivileges
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CreateProcessW
advapi32.dll::OpenProcessToken
kernel32.dll::CloseHandle
kernel32.dll::CreateThread
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryA
kernel32.dll::LoadLibraryExW
kernel32.dll::LoadLibraryW
kernel32.dll::GetSystemInfo
kernel32.dll::GetStartupInfoW
kernel32.dll::GetDiskFreeSpaceW
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateDirectoryW
kernel32.dll::CreateFileW
kernel32.dll::DeleteFileW
kernel32.dll::GetWindowsDirectoryW
kernel32.dll::GetSystemDirectoryW
kernel32.dll::GetFileAttributesW
WIN_BASE_USER_APIRetrieves Account Informationadvapi32.dll::LookupPrivilegeValueW
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegOpenKeyExW
advapi32.dll::RegQueryValueExW
WIN_USER_APIPerforms GUI Actionsuser32.dll::PeekMessageW
user32.dll::CreateWindowExW

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