MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 49c04ebf5b502cf960b7808dbe53a7e28d2c9302da88c26873149d12b16b3560. 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: 19


Intelligence 19 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 49c04ebf5b502cf960b7808dbe53a7e28d2c9302da88c26873149d12b16b3560
SHA3-384 hash: 12db262546509650a224851179dbefc792ef9d8079bee2b9d86fa5efed8a974f2ec469f9a683e0e8b2d589ec1f2a8871
SHA1 hash: 1b21e75bf40a1a8a16ff92c245a2d83fe74ba290
MD5 hash: bb64eef8bd794e2296b2876aa7910009
humanhash: oranges-king-six-island
File name:784069483573273747434.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'282'560 bytes
First seen:2025-03-26 11:49:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:eu6J33O0c+JY5UZ+XC0kGso6FaMHarWVjSr76RBKP8FwcFt0WY:wu0c++OCvkGs9FaMHnSrmR0Emc7Y
TLSH T11155CF22B3DDC360CB669173BF69B7016EBF7C614630B85B2F981D79A960171122C7A3
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 1607014111010001 (8 x MassLogger, 6 x SnakeKeylogger, 2 x AgentTesla)
Reporter lowmal3
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
480
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
784069483573273747434.exe
Verdict:
Malicious activity
Analysis date:
2025-03-26 12:01:32 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/95cfc6ca-b792-4310-bec2-9d58e43a83c1

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

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e3ea0312b5dc44da3e35d7
Tags:
autorun autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Connection attempt
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Stealing user critical data
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context autoit compiled-script explorer fingerprint keylogger lolbin microsoft_visual_cc packed packed packer_detected remcos
Link:
https://www.filescan.io/uploads/67e3ea03f274bf2d8e2305f4/reports/4f767721-7a41-4056-a0e2-03d11bd7f985/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/49c04ebf5b502cf960b7808dbe53a7e28d2c9302da88c26873149d12b16b3560
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6499b7a6-d1bd-4ffa-944e-709f742ce9e9
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/1649031
Signature
Binary is likely a compiled AutoIt script file
C2 URLs / IPs found in malware configuration
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
Contains functionalty to change the wallpaper
Delayed program exit found
Detected Remcos RAT
Drops VBS files to the startup folder
Found malware configuration
Installs a global keyboard hook
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: Drops script at startup location
Sigma detected: Remcos
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
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)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1649031 Sample: 784069483573273747434.exe Startdate: 26/03/2025 Architecture: WINDOWS Score: 100 54 geoplugin.net 2->54 68 Suricata IDS alerts for network traffic 2->68 70 Found malware configuration 2->70 72 Malicious sample detected (through community Yara rule) 2->72 74 9 other signatures 2->74 10 784069483573273747434.exe 4 2->10         started        14 wscript.exe 1 2->14         started        signatures3 process4 file5 52 C:\Users\user\AppData\...\sacculation.exe, PE32 10->52 dropped 102 Binary is likely a compiled AutoIt script file 10->102 16 sacculation.exe 2 10->16         started        104 Windows Scripting host queries suspicious COM object (likely to drop second stage) 14->104 20 sacculation.exe 1 14->20         started        signatures6 process7 file8 48 C:\Users\user\AppData\...\sacculation.vbs, data 16->48 dropped 60 Multi AV Scanner detection for dropped file 16->60 62 Binary is likely a compiled AutoIt script file 16->62 64 Drops VBS files to the startup folder 16->64 66 3 other signatures 16->66 22 svchost.exe 2 2 16->22         started        27 sacculation.exe 1 20->27         started        29 svchost.exe 20->29         started        signatures9 process10 dnsIp11 58 192.3.101.149, 49692, 49701, 49702 AS-COLOCROSSINGUS United States 22->58 50 C:\ProgramData\remcos\logs.dat, data 22->50 dropped 88 Detected Remcos RAT 22->88 90 Contains functionalty to change the wallpaper 22->90 92 Contains functionality to steal Chrome passwords or cookies 22->92 100 5 other signatures 22->100 31 WerFault.exe 23 16 22->31         started        33 WerFault.exe 2 16 22->33         started        94 Binary is likely a compiled AutoIt script file 27->94 96 Writes to foreign memory regions 27->96 98 Maps a DLL or memory area into another process 27->98 35 svchost.exe 1 27->35         started        file12 signatures13 process14 dnsIp15 56 geoplugin.net 178.237.33.50, 49763, 80 ATOM86-ASATOM86NL Netherlands 35->56 76 System process connects to network (likely due to code injection or exploit) 35->76 78 Detected Remcos RAT 35->78 80 Installs a global keyboard hook 35->80 39 svchost.exe 1 35->39         started        42 svchost.exe 1 35->42         started        44 svchost.exe 2 35->44         started        46 2 other processes 35->46 signatures16 process17 signatures18 82 Tries to steal Instant Messenger accounts or passwords 39->82 84 Tries to harvest and steal browser information (history, passwords, etc) 39->84 86 Tries to steal Mail credentials (via file / registry access) 42->86
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/49c04ebf5b502cf960b7808dbe53a7e28d2c9302da88c26873149d12b16b3560
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/49c04ebf5b502cf960b7808dbe53a7e28d2c9302da88c26873149d12b16b3560/
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-03-26 11:50:25 UTC
File Type:
PE (Exe)
Extracted files:
13
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jhae5p23kawpsyfxqcg34u5h4kgszeyc3keme2dtcsorfmllgvqa._file
Verdict:
malicious
Label(s):
admintool_mailpassview
Create hunting rule
remcos
Create hunting rule
nirsoft
Create hunting rule
unc_loader_036
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:march 26 collection discovery rat
Link:
https://tria.ge/reports/250326-nzqkfssxcx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
AutoIT Executable
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Drops startup file
Executes dropped EXE
Loads dropped DLL
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Remcos family
Malware Config
C2 Extraction:
192.3.101.149:6565
Verdict:
Malicious
Tags:
trojan
YARA:
SUSP_Imphash_Mar23_3
Link:
https://app.threat.zone/submission/a4482775-2a44-46a8-a08a-ea6c2f010633
Unpacked files
SH256 hash:
49c04ebf5b502cf960b7808dbe53a7e28d2c9302da88c26873149d12b16b3560
MD5 hash:
bb64eef8bd794e2296b2876aa7910009
SHA1 hash:
1b21e75bf40a1a8a16ff92c245a2d83fe74ba290
Link:
https://www.unpac.me/results/db97cdd9-38b9-40ba-ab77-4b4e7aa5c44e/
SH256 hash:
7a9bff4f727d705f6df3809f7b0b024724d4767cc25fb91b9c27b0260cd9d49f
MD5 hash:
10437c8dbac40b457a5807f82de0881a
SHA1 hash:
6bb665e7b43d38cb9927871e69e0108750fc0066
Detections:
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
Remcos
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Link:
https://www.unpac.me/results/db97cdd9-38b9-40ba-ab77-4b4e7aa5c44e/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/49c04ebf5b50/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/49c04ebf5b502cf960b7808dbe53a7e28d2c9302da88c26873149d12b16b3560

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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:SUSP_Imphash_Mar23_3
Create hunting rule
Author:Arnim Rupp (https://github.com/ruppde)
Description:Detects imphash often found in malware samples (Maximum 0,25% hits with search for 'imphash:x p:0' on Virustotal) = 99,75% hits
Reference:Internal Research
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: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.

Malspam

RemcosRAT

Executable exe 49c04ebf5b502cf960b7808dbe53a7e28d2c9302da88c26873149d12b16b3560

(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
CHECK_NXMissing Non-Executable Memory Protectioncritical
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::CopySid
ADVAPI32.dll::FreeSid
ADVAPI32.dll::GetLengthSid
ADVAPI32.dll::GetTokenInformation
ADVAPI32.dll::GetAce
COM_BASE_APICan Download & Execute componentsole32.dll::CLSIDFromProgID
ole32.dll::CoCreateInstance
ole32.dll::CoCreateInstanceEx
ole32.dll::CoInitializeSecurity
ole32.dll::CreateStreamOnHGlobal
MULTIMEDIA_APICan Play MultimediaWINMM.dll::mciSendStringW
WINMM.dll::timeGetTime
WINMM.dll::waveOutSetVolume
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AddAce
ADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::CheckTokenMembership
ADVAPI32.dll::DuplicateTokenEx
ADVAPI32.dll::GetAclInformation
ADVAPI32.dll::GetSecurityDescriptorDacl
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::ShellExecuteW
SHELL32.dll::SHFileOperationW
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::CreateProcessAsUserW
KERNEL32.dll::CreateProcessW
ADVAPI32.dll::CreateProcessWithLogonW
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
ADVAPI32.dll::OpenThreadToken
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::SetSystemPowerState
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetDriveTypeW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileExW
KERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
IPHLPAPI.DLL::IcmpCreateFile
KERNEL32.dll::CreateFileW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
ADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LogonUserW
ADVAPI32.dll::LookupPrivilegeValueW
WIN_NETWORK_APISupports Windows NetworkingMPR.dll::WNetAddConnection2W
MPR.dll::WNetUseConnectionW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegConnectRegistryW
ADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::BlockInput
USER32.dll::CloseDesktop
USER32.dll::CreateMenu
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::FindWindowW

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