MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e6643fb9224f9a2ce99cf20b5714e5322645fae8046ef9d439ca17d7ac6abd45. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e6643fb9224f9a2ce99cf20b5714e5322645fae8046ef9d439ca17d7ac6abd45
SHA3-384 hash: 9faccb29b08a6c281f1e1c11b1f944324de3d5880581913b67da36207b75bbfbb8222bd4e267e1c897968ceebb862eb1
SHA1 hash: 108b22fb665b8952633a983f495f58ca6027d152
MD5 hash: 0c5fdad9077c1419ea0a48b891798030
humanhash: three-blue-early-august
File name:DS0987656789000J.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'335'296 bytes
First seen:2024-07-17 14:11:54 UTC
Last seen:2024-07-24 22:28:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:9AHnh+eWsN3skA4RV1Hom2KXMmHavQ1FISBfDwjPRnruBG1ByK5:ch+ZkldoPK8YavQc6DSduOZ
TLSH T1A555BE02B3D6D036FFAB92739B59B20556BC79290133852F13981DB9BDB01B1237E663
TrID 63.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
11.6% (.EXE) Win64 Executable (generic) (10523/12/4)
7.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
5.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.9% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon e4dcd8c4d4d4c4d4 (95 x AgentTesla, 51 x Formbook, 12 x RemcosRAT)
Reporter threatcat_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
394
Origin country :
CH CH
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Win32.Malware-gen.25088.5857.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6697d1334de77648397b7ce4
Tags:
Generic Stealth Trojan Inject
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
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Reading critical registry keys
Connection attempt to an infection source
Sending a TCP request to an infection source
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
autoit epmicrosoft_visual_cc fingerprint keylogger lolbin microsoft_visual_cc packed shell32
Link:
https://www.filescan.io/uploads/6697d136f1068d66afbea1a9/reports/7ee6d5b0-e1b1-4e45-b154-812c7810c6da/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/e6643fb9224f9a2ce99cf20b5714e5322645fae8046ef9d439ca17d7ac6abd45
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b8baf62c-a83b-426c-ab70-7e88afcaf3c7
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/1475111
Signature
AI detected suspicious sample
Binary is likely a compiled AutoIt script file
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
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
Machine Learning detection for dropped file
Machine Learning detection for 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
Snort IDS alert 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)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
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: 1475111 Sample: DS0987656789000J.exe Startdate: 17/07/2024 Architecture: WINDOWS Score: 100 36 geoplugin.net 2->36 52 Snort IDS alert for network traffic 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 11 other signatures 2->58 8 DS0987656789000J.exe 6 2->8         started        12 wscript.exe 1 2->12         started        signatures3 process4 file5 30 C:\Users\user\AppData\Local\...\molebut.exe, PE32 8->30 dropped 68 Binary is likely a compiled AutoIt script file 8->68 14 molebut.exe 3 19 8->14         started        70 Windows Scripting host queries suspicious COM object (likely to drop second stage) 12->70 19 molebut.exe 2 12->19         started        signatures6 process7 dnsIp8 38 107.175.229.139, 49704, 49705, 8823 AS-COLOCROSSINGUS United States 14->38 40 geoplugin.net 178.237.33.50, 49706, 80 ATOM86-ASATOM86NL Netherlands 14->40 32 C:\Users\user\AppData\Roaming\...\molebut.vbs, data 14->32 dropped 34 C:\ProgramData\remcos\logs.dat, data 14->34 dropped 42 Multi AV Scanner detection for dropped file 14->42 44 Contains functionality to bypass UAC (CMSTPLUA) 14->44 46 Detected Remcos RAT 14->46 50 9 other signatures 14->50 21 molebut.exe 1 14->21         started        24 molebut.exe 1 14->24         started        26 molebut.exe 2 14->26         started        28 molebut.exe 14->28         started        48 Binary is likely a compiled AutoIt script file 19->48 file9 signatures10 process11 signatures12 60 Binary is likely a compiled AutoIt script file 21->60 62 Tries to steal Instant Messenger accounts or passwords 21->62 64 Tries to steal Mail credentials (via file / registry access) 21->64 66 Tries to harvest and steal browser information (history, passwords, etc) 24->66
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e6643fb9224f9a2ce99cf20b5714e5322645fae8046ef9d439ca17d7ac6abd45
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e6643fb9224f9a2ce99cf20b5714e5322645fae8046ef9d439ca17d7ac6abd45/
Threat name:
Win32.Trojan.Strab
Create hunting rule
Status:
Malicious
First seen:
2024-07-16 11:14:07 UTC
File Type:
PE (Exe)
Extracted files:
12
AV detection:
21 of 38 (55.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4zsd7ojcj6ncz2m46ifvofhfgitel6xiarxptvbzzil5pldkxvcq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/240717-rhtsbsxdrb/
Behaviour
Suspicious use of WriteProcessMemory
AutoIT Executable
Drops startup file
Executes dropped EXE
Loads dropped DLL
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/73c9c62e-f681-4c6d-9ec3-d49ded189ce7
Unpacked files
SH256 hash:
93c8b381f044e1ac1d133f49114b5777da366de1f67956feb00ae8f21e80122d
MD5 hash:
f818296d5fd7df66b36f2e6148365dd0
SHA1 hash:
690d6ca628b859f51775bd59834cca167001fe46
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_w0
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/c7eec38b-4451-4eb8-92c6-289b2f6a7108/
Parent samples :
b274b2b65f5ec3256ee9676fac8380af1c47457507e93d5b745156f29f386601
e6643fb9224f9a2ce99cf20b5714e5322645fae8046ef9d439ca17d7ac6abd45
79c7358a9ac82f4d547e027ec64b8a9854ef445ff7d1e85a2b39c0e60bc00c99
74eff35aee68f271e0a9882e41d44abf8f82d058ee4755ddd0832bdc674c520b
497a59ce5e1c1e2bdd5e708f21aecd446d9047d17024c73abaeab9d8bfa8c4aa
1f75782173ef3b1b68650a95b7846bb35faa400d53b52fc1ad8b65a86bc72c88
66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490
SH256 hash:
e6643fb9224f9a2ce99cf20b5714e5322645fae8046ef9d439ca17d7ac6abd45
MD5 hash:
0c5fdad9077c1419ea0a48b891798030
SHA1 hash:
108b22fb665b8952633a983f495f58ca6027d152
Detections:
AutoIT_Compiled
Create hunting rule
SUSP_Imphash_Mar23_3
Create hunting rule
Link:
https://www.unpac.me/results/c7eec38b-4451-4eb8-92c6-289b2f6a7108/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e6643fb9224f/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/e6643fb9224f9a2ce99cf20b5714e5322645fae8046ef9d439ca17d7ac6abd45

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: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

File information

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

Malspam

RemcosRAT

Executable exe e6643fb9224f9a2ce99cf20b5714e5322645fae8046ef9d439ca17d7ac6abd45

(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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