MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 394b7bdb5d0f6d9b42b22175e11b04251d1ebdc3e7bdcd6dfa90ca7d8c458397. 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: 20


Intelligence 20 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 394b7bdb5d0f6d9b42b22175e11b04251d1ebdc3e7bdcd6dfa90ca7d8c458397
SHA3-384 hash: 1d3e2cae8d820923656e31367632b13dabb93cf2a4a74120f5271ac943905d5a7ed229613dd461b2b95473aa7b0a8c8c
SHA1 hash: 4255a4810330c8f801d68103c62f02ac2b5f1bb0
MD5 hash: 38bf27a182e4b2822f383b3a7c0eb1ce
humanhash: lamp-magazine-may-ack
File name:17483294450ae2f238bd831633cc9a971550ec68508018d9fa403872dbba00d7b0289035b7498.dat-decoded
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:499'712 bytes
First seen:2025-05-27 07:04:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 1dac0fb7dad849409daf9e23353df461 (32 x RemcosRAT)
ssdeep 12288:mvSPwdNnNZGA3/hvESbvqCqYH2v595OuVIsPZ3NL:mqPONnNZ33/VY42hnOmZd
Threatray 1'914 similar samples on MalwareBazaar
TLSH T1CAB4BF01B6E2C1B2D57654300C26E776DEBCFD202835997B63D60D57FE30190AB3AAB6
TrID 32.2% (.EXE) Win64 Executable (generic) (10522/11/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4504/4/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
dhash icon c4d48eaa8ad4d4f8 (1'000 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter abuse_ch
Tags:base64-decoded exe RemcosRAT


Avatar
abuse_ch
Malware dropped as base64 encoded payload

Intelligence

File Origin
# of uploads :
1
# of downloads :
471
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
17483294450ae2f238bd831633cc9a971550ec68508018d9fa403872dbba00d7b0289035b7498.dat-decoded
Verdict:
Malicious activity
Analysis date:
2025-05-27 07:25:39 UTC
Tags:
rat remcos remote auto-reg stealer mpress
Link:
https://app.any.run/tasks/8d7e4c9c-c19e-4e91-872e-d23d59eabc32

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/5788/
Detection(s):
Win.Trojan.Remcos-9841897-0
Create hunting rule

Win.Trojan.Remcos-10002580-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68356527acf88f5815e77bad
Tags:
remcos lien
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file
Creating a process from a recently created file
Creating a file in the %temp% directory
Connecting to a non-recommended domain
Connection attempt
Launching a process
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd config-extracted crypto evasive exploit explorer fingerprint fingerprint keylogger lolbin microsoft_visual_cc packed rat rat remcos remcos windows
Link:
https://www.filescan.io/uploads/683563f7171e01f9592e02ba/reports/8dbb9c92-8fe3-4dfa-8ded-6cee43478de9/overview
Verdict:
Malicious
Labled as:
Dacic.A9349469.A.Generic
Link:
https://www.hybrid-analysis.com/sample/394b7bdb5d0f6d9b42b22175e11b04251d1ebdc3e7bdcd6dfa90ca7d8c458397
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d5eaaf99-5414-4ed4-84e1-271f6c4892ff
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1699617
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
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
Creates autostart registry keys with suspicious names
Detected Remcos RAT
Found evasive API chain (may stop execution after checking mutex)
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Potentially Suspicious Malware Callback Communication
Sigma detected: Remcos
Sigma detected: Suspect Svchost Activity
Suricata IDS alerts for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1699617 Sample: 17483294450ae2f238bd831633c... Startdate: 27/05/2025 Architecture: WINDOWS Score: 100 44 geoplugin.net 2->44 50 Suricata IDS alerts for network traffic 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 12 other signatures 2->56 8 17483294450ae2f238bd831633cc9a971550ec68508018d9fa403872dbba00d7b0289035b7498.dat-decoded.exe 2 4 2->8         started        12 remcos.exe 2->12         started        14 remcos.exe 2->14         started        16 remcos.exe 2->16         started        signatures3 process4 file5 40 C:\ProgramData\Remcos\remcos.exe, PE32 8->40 dropped 42 C:\ProgramData\...\remcos.exe:Zone.Identifier, ASCII 8->42 dropped 80 Contains functionality to bypass UAC (CMSTPLUA) 8->80 82 Detected Remcos RAT 8->82 84 Contains functionalty to change the wallpaper 8->84 86 4 other signatures 8->86 18 remcos.exe 5 18 8->18         started        signatures6 process7 dnsIp8 46 45.138.16.81, 1515, 49687, 49688 SPECTRAIPSpectraIPBVNL Netherlands 18->46 48 geoplugin.net 178.237.33.50, 49689, 80 ATOM86-ASATOM86NL Netherlands 18->48 32 C:\Users\user\AppData\Local\Temp\TH2EDB.tmp, MS-DOS 18->32 dropped 34 C:\Users\user\AppData\Local\Temp\TH2E9B.tmp, MS-DOS 18->34 dropped 36 C:\Users\user\AppData\Local\Temp\TH2E6B.tmp, PE32 18->36 dropped 38 C:\Users\user\AppData\Local\Temp\TH166E.tmp, PE32 18->38 dropped 58 Antivirus detection for dropped file 18->58 60 Multi AV Scanner detection for dropped file 18->60 62 Contains functionality to bypass UAC (CMSTPLUA) 18->62 64 6 other signatures 18->64 23 svchost.exe 18->23         started        26 svchost.exe 1 18->26         started        28 svchost.exe 1 18->28         started        30 2 other processes 18->30 file9 signatures10 process11 signatures12 66 Contains functionality to bypass UAC (CMSTPLUA) 23->66 68 Detected Remcos RAT 23->68 70 Found evasive API chain (may stop execution after checking mutex) 23->70 78 4 other signatures 23->78 72 Tries to steal Instant Messenger accounts or passwords 26->72 74 Tries to steal Mail credentials (via file / registry access) 26->74 76 Tries to harvest and steal browser information (history, passwords, etc) 28->76
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/394b7bdb5d0f6d9b42b22175e11b04251d1ebdc3e7bdcd6dfa90ca7d8c458397
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/394b7bdb5d0f6d9b42b22175e11b04251d1ebdc3e7bdcd6dfa90ca7d8c458397/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-05-27 07:04:25 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hffxxw25b5wzwqvsef26cgyeeuor5pod466423p2sdfh3dcfqolq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
nirsoft
Create hunting rule
admintool_mailpassview
Create hunting rule
Similar samples:
18c96dbde931aa37ed3e519ce700da01c5d47cb5e1b50116e6d6ba1109d22566
RemcosRAT
55fe10713916a9cdac684c3a3fa263d625152a878ad98284d441b38355b57825
RemcosRAT
6607d80dd10dfb2832eb14c78fd7402e9c63f6d3d1ac82b113f099d1d6cc80fb
RemcosRAT
c78058476cb51aac32c7ae75a94244e6b721944175e3b3418119eeca217ca098
RemcosRAT
cf1f146ffa6951e45c24eada8fcef9fae06e8c7613ea0a5438d7bb6b868cadc9
RemcosRAT
d051ba598d31d4c4d86deda039a1b6ac05fe4c21764479b9c895e641992dcc26
RemcosRAT
error
RemcosRAT
+ 1'904 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:svcscms collection discovery persistence rat
Link:
https://tria.ge/reports/250527-hv4nmazwet/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Remcos family
Malware Config
C2 Extraction:
45.138.16.81:1515
remcosdns.duckdns.org:1515
remcosnocreat.duckdns.org:1515
newremcos.duckdns.org:1515
Verdict:
Malicious
Tags:
rat remcos Win.Trojan.Remcos-9841897-0
YARA:
malware_windows_remcos_rat REMCOS_RAT_variants Remcos_Payload win_remcos_rat_unpacked Windows_Trojan_Remcos_b296e965 MAL_EXE_Remcos_RAT_Jul_22 Remcos
Link:
https://app.threat.zone/submission/8ca2586a-f78f-486b-95b3-3182a58e90bf
Unpacked files
SH256 hash:
394b7bdb5d0f6d9b42b22175e11b04251d1ebdc3e7bdcd6dfa90ca7d8c458397
MD5 hash:
38bf27a182e4b2822f383b3a7c0eb1ce
SHA1 hash:
4255a4810330c8f801d68103c62f02ac2b5f1bb0
Detections:
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
Remcos
Create hunting rule
Link:
https://www.unpac.me/results/8a34b82e-6a92-4877-82d4-f41d9d2436de/
Malware family:
WebBrowserPassView
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/394b7bdb5d0f/report/overview.html
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/394b7bdb5d0f6d9b42b22175e11b04251d1ebdc3e7bdcd6dfa90ca7d8c458397

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Remcos_unpacked_PulseIntel
Create hunting rule
Author:PulseIntel
Description:Remcos Payload
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
Rule name:win_remcos_rat_unpacked
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:win_remcos_w0
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Create hunting rule
Author:Matthew @ Embee_Research

File information

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

0ae2f238bd831633cc9a971550ec68508018d9fa403872dbba00d7b0289035b7

RemcosRAT

Executable exe 394b7bdb5d0f6d9b42b22175e11b04251d1ebdc3e7bdcd6dfa90ca7d8c458397

(this sample)

  
Dropped by
SHA256 0ae2f238bd831633cc9a971550ec68508018d9fa403872dbba00d7b0289035b7
  
Dropped by
MD5 7d5096581d20120fd4bdd10da7bf921d
  
URLhaus
https://urlhaus.abuse.ch/url/3553458/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/5788/

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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
GDI_PLUS_APIInterfaces with Graphicsgdiplus.dll::GdiplusStartup
gdiplus.dll::GdipGetImageEncoders
gdiplus.dll::GdipGetImageEncodersSize
gdiplus.dll::GdipAlloc
MULTIMEDIA_APICan Play MultimediaWINMM.dll::mciSendStringA
WINMM.dll::mciSendStringW
WINMM.dll::PlaySoundW
WINMM.dll::waveInAddBuffer
WINMM.dll::waveInClose
WINMM.dll::waveInOpen
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::GetTokenInformation
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExA
SHELL32.dll::ShellExecuteW
URL_MONIKERS_APICan Download & Execute componentsurlmon.dll::URLDownloadToFileW
urlmon.dll::URLOpenBlockingStreamW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
KERNEL32.dll::CreateProcessA
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::WriteProcessMemory
KERNEL32.dll::CloseHandle
WININET.dll::InternetCloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::FindFirstVolumeW
KERNEL32.dll::FindNextVolumeW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AllocConsole
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetConsoleOutputCP
KERNEL32.dll::SetConsoleTextAttribute
KERNEL32.dll::SetStdHandle
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileA
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileExW
KERNEL32.dll::MoveFileW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LookupPrivilegeValueA
KERNEL32.dll::QueryDosDeviceW
WIN_CRYPT_APIUses Windows Crypt APIADVAPI32.dll::CryptAcquireContextA
ADVAPI32.dll::CryptGenRandom
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegCreateKeyW
ADVAPI32.dll::RegCreateKeyA
ADVAPI32.dll::RegDeleteKeyA
ADVAPI32.dll::RegOpenKeyExA
ADVAPI32.dll::RegOpenKeyExW
WIN_SVC_APICan Manipulate Windows ServicesADVAPI32.dll::ChangeServiceConfigW
ADVAPI32.dll::ControlService
ADVAPI32.dll::OpenSCManagerW
ADVAPI32.dll::OpenSCManagerA
ADVAPI32.dll::OpenServiceW
ADVAPI32.dll::QueryServiceConfigW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuA
USER32.dll::EmptyClipboard
USER32.dll::OpenClipboard
USER32.dll::CreateWindowExA

Comments