MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e28c8fc4052dbd472cc6245f605064f85ebb36371b43246066fdbeca547cbd17. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e28c8fc4052dbd472cc6245f605064f85ebb36371b43246066fdbeca547cbd17
SHA3-384 hash: 41127eb11c8afb8ed5b1246abdacc910df97b1ea440e3979de1a746d29a2741b190395a6abe05ed34da52662e8b4096d
SHA1 hash: 1a2f7c3bb7190f8d8e1685e4e1fd77ebecc699ba
MD5 hash: fa3641c75d2beb68c01e8065eefc4707
humanhash: winter-eleven-wisconsin-july
File name:GVV.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'369'600 bytes
First seen:2024-05-02 13:05:19 UTC
Last seen:2024-06-03 16:12:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 948cc502fe9226992dce9417f952fce3 (1'182 x CredentialFlusher, 446 x Formbook, 231 x AgentTesla)
ssdeep 24576:GqDEvCTbMWu7rQYlBQcBiT6rprG8aRMWJLRH4NnPncMw:GTvC/MTQYxsWR7aRLNHWPp
TLSH T1FA55C00273D1D022FFAB92334B5AF6115BBC6A260123E61F13981D79BE705B1563E7A3
TrID 68.8% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
12.5% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.4% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter James_inthe_box
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
489
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
e28c8fc4052dbd472cc6245f605064f85ebb36371b43246066fdbeca547cbd17.exe
Verdict:
Suspicious activity
Analysis date:
2024-05-02 13:07:55 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/5f1b965a-2048-4391-be7b-aa8694200d9f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Generic.33203615.28472.17882.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
autoit fingerprint keylogger lolbin packed shell32
Link:
https://www.filescan.io/uploads/66338fbcde9c2e310308a5d7/reports/59d18aca-032e-459c-b46d-711f3fc5b5e8/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/e28c8fc4052dbd472cc6245f605064f85ebb36371b43246066fdbeca547cbd17
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e5bfe4e7-0085-4adf-b6ad-a5be93bb8557
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1435345
Signature
Antivirus detection for URL or domain
Binary is likely a compiled AutoIt script 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
Delayed program exit found
Detected Remcos RAT
Drops VBS files to the startup folder
Found API chain indicative of sandbox detection
Found malware configuration
Installs a global keyboard hook
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 submitted file
Sigma detected: Drops script at startup location
Sigma detected: Remcos
Sigma detected: WScript or CScript Dropper
System process connects to network (likely due to code injection or exploit)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1435345 Sample: GVV.exe Startdate: 02/05/2024 Architecture: WINDOWS Score: 100 35 yuahdgbceja.sytes.net 2->35 37 geoplugin.net 2->37 55 Found malware configuration 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 Antivirus detection for URL or domain 2->59 61 9 other signatures 2->61 9 GVV.exe 6 2->9         started        13 wscript.exe 1 2->13         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\deblaterate.exe, PE32 9->31 dropped 75 Binary is likely a compiled AutoIt script file 9->75 77 Found API chain indicative of sandbox detection 9->77 15 deblaterate.exe 3 9->15         started        79 Windows Scripting host queries suspicious COM object (likely to drop second stage) 13->79 19 deblaterate.exe 2 13->19         started        signatures6 process7 file8 33 C:\Users\user\AppData\...\deblaterate.vbs, data 15->33 dropped 43 Binary is likely a compiled AutoIt script file 15->43 45 Machine Learning detection for dropped file 15->45 47 Drops VBS files to the startup folder 15->47 49 Found API chain indicative of sandbox detection 15->49 21 svchost.exe 3 14 15->21         started        51 Writes to foreign memory regions 19->51 53 Maps a DLL or memory area into another process 19->53 25 svchost.exe 12 19->25         started        signatures9 process10 dnsIp11 39 geoplugin.net 178.237.33.50, 49709, 49717, 80 ATOM86-ASATOM86NL Netherlands 21->39 41 yuahdgbceja.sytes.net 23.94.53.100, 2766, 49707, 49708 AS-COLOCROSSINGUS United States 21->41 63 Contains functionality to bypass UAC (CMSTPLUA) 21->63 65 Detected Remcos RAT 21->65 67 Contains functionalty to change the wallpaper 21->67 73 4 other signatures 21->73 27 WerFault.exe 23 16 21->27         started        29 WerFault.exe 2 16 21->29         started        69 System process connects to network (likely due to code injection or exploit) 25->69 71 Installs a global keyboard hook 25->71 signatures12 process13
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e28c8fc4052dbd472cc6245f605064f85ebb36371b43246066fdbeca547cbd17
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e28c8fc4052dbd472cc6245f605064f85ebb36371b43246066fdbeca547cbd17/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-05-02 13:04:57 UTC
File Type:
PE (Exe)
Extracted files:
24
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4kgi7raffw6uolggerpwaude7bplwnrxdnbsiydg7w7muvd4xulq._file
Verdict:
unknown
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/240502-qb3afsbf39/
Unpacked files
SH256 hash:
ac322cd8a5b18bb75258035882bc66accea1fe4c98b13b2df45e4f07610de871
MD5 hash:
78d7ca6c1996a6f4da4826543bcb306f
SHA1 hash:
78e0e3d4c5ce8dac74519949e356eec800fd8041
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/aa9c2d5b-b5d8-42c2-a6c2-92f71aa6ca9d/
Parent samples :
e28c8fc4052dbd472cc6245f605064f85ebb36371b43246066fdbeca547cbd17
f4085b40140a0500b17b6b1b20698af8c68a096ed072252d1e65d05286724972
82de9f7f6798a591fdeef48813ceb8298cdc5487989b6963439f43748a78442d
SH256 hash:
e28c8fc4052dbd472cc6245f605064f85ebb36371b43246066fdbeca547cbd17
MD5 hash:
fa3641c75d2beb68c01e8065eefc4707
SHA1 hash:
1a2f7c3bb7190f8d8e1685e4e1fd77ebecc699ba
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/aa9c2d5b-b5d8-42c2-a6c2-92f71aa6ca9d/
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/e28c8fc4052dbd472cc6245f605064f85ebb36371b43246066fdbeca547cbd17

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:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)

File information

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

  
Delivery method
Other
  
URLhaus
https://urlhaus.abuse.ch/url/2835512/

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::LoadLibraryW
KERNEL32.dll::LoadLibraryExW
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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