MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7af470dc705da73063fc90cbb2b7746ef2eaba7604ecb371d7ff234845025649. 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 15 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7af470dc705da73063fc90cbb2b7746ef2eaba7604ecb371d7ff234845025649
SHA3-384 hash: 18fa0db8b77fe862e05f994721ef753fccf72654acadb0bced64eb154a956346925bb8e018eee74fccbc79461b8eae07
SHA1 hash: 464d44ce1e4348804efef7836daf2a47330ed5d8
MD5 hash: 589ddf53393fe19f58105dfdf56879e3
humanhash: neptune-tennessee-zebra-bulldog
File name:589ddf53393fe19f58105dfdf56879e3
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'337'344 bytes
First seen:2024-03-21 17:43:38 UTC
Last seen:2024-03-21 19:48:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:HAHnh+eWsN3skA4RV1Hom2KXMmHa9LBZQWCEDIm/uiUkl5Cc00ML2j5:6h+ZkldoPK8Ya9rQWo6Ukd0Tu
TLSH T18655CF0273D1C036FFABA2739B6AF2455ABD79254123852F13981DB9BD701B2233D663
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 aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
335
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
7af470dc705da73063fc90cbb2b7746ef2eaba7604ecb371d7ff234845025649.exe
Verdict:
Suspicious activity
Analysis date:
2024-03-21 18:21:27 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/52938121-78a1-4553-abe6-77d221a5b79f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.FileRepMalware.25286.26379.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/65fc71eec1137bbf14a089be/reports/b1cd2043-bd3b-41e5-98c1-74bcecefbd13/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/7af470dc705da73063fc90cbb2b7746ef2eaba7604ecb371d7ff234845025649
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7ff31044-e6de-4a12-94da-2fae70a2b72b
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1413468
Signature
Antivirus detection for dropped file
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
Document exploit detected (process start blacklist hit)
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 submitted file
Sigma detected: Drops script at startup location
Sigma detected: Remcos
Sigma detected: Suspicious Microsoft Office Child Process
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: 1413468 Sample: D5QWlX4uRw.exe Startdate: 21/03/2024 Architecture: WINDOWS Score: 100 30 shgoini.com 2->30 32 geoplugin.net 2->32 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus detection for URL or domain 2->42 44 10 other signatures 2->44 8 D5QWlX4uRw.exe 6 2->8         started        12 wscript.exe 1 2->12         started        signatures3 process4 file5 26 C:\Users\user\AppData\Local\...\excel.exe, PE32 8->26 dropped 54 Binary is likely a compiled AutoIt script file 8->54 14 excel.exe 3 8->14         started        56 Windows Scripting host queries suspicious COM object (likely to drop second stage) 12->56 18 excel.exe 2 12->18         started        signatures6 process7 file8 28 C:\Users\user\AppData\Roaming\...\excel.vbs, data 14->28 dropped 58 Antivirus detection for dropped file 14->58 60 Binary is likely a compiled AutoIt script file 14->60 62 Machine Learning detection for dropped file 14->62 66 3 other signatures 14->66 20 svchost.exe 3 13 14->20         started        64 Maps a DLL or memory area into another process 18->64 24 svchost.exe 18->24         started        signatures9 process10 dnsIp11 34 geoplugin.net 178.237.33.50, 49715, 80 ATOM86-ASATOM86NL Netherlands 20->34 36 shgoini.com 107.175.229.143, 30902, 49714 AS-COLOCROSSINGUS United States 20->36 46 System process connects to network (likely due to code injection or exploit) 20->46 48 Contains functionality to bypass UAC (CMSTPLUA) 20->48 50 Detected Remcos RAT 20->50 52 5 other signatures 20->52 signatures12
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/7af470dc705da73063fc90cbb2b7746ef2eaba7604ecb371d7ff234845025649
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7af470dc705da73063fc90cbb2b7746ef2eaba7604ecb371d7ff234845025649/
Threat name:
Win32.Trojan.Strab
Create hunting rule
Status:
Malicious
First seen:
2024-03-21 15:09:08 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
14 of 38 (36.84%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pl2hbxdqlwttay74sdf3fn3un3zovotwatwlg4ox74ruqrickzeq._file
Verdict:
unknown
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/240321-wa5xvadf59/
Behaviour
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Unpacked files
SH256 hash:
a9a1ef104a65305c091ef118629fb5b55a2a98b0abb2073575b4c937079d548e
MD5 hash:
48397bb9dbb0e0055afba4d9e09a9c93
SHA1 hash:
9941836b671ea61d8f597321c08f37ea5c290f78
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/ca3bd1ec-3507-48bb-8ac6-1705ac2e6485/
Parent samples :
867e3c9147ef41bc4edff6002959c37c785d919b13edbd7e8ed150ea51f9f15d
7af470dc705da73063fc90cbb2b7746ef2eaba7604ecb371d7ff234845025649
ca52caeb15fde0f171362e3e7771edecc44f2e582cccaa0fedbd6012669076d7
470b539a4e4519ea56b67b517ad48a5ff794a740b39ffff1eb834b568fb77e52
3610a513abb50127c22a6c5d2c84b814a5743ba2de685c031725601a23f3bdc3
c392c14304399e9ad13ede370375ecffa47f30245cb91a413a3fd1150721a929
17fb08eec6f9f3ab1c5eba3469b4bae349b1f5ad849dc07cabac9926de38dc3c
SH256 hash:
7af470dc705da73063fc90cbb2b7746ef2eaba7604ecb371d7ff234845025649
MD5 hash:
589ddf53393fe19f58105dfdf56879e3
SHA1 hash:
464d44ce1e4348804efef7836daf2a47330ed5d8
Detections:
AutoIT_Compiled
Create hunting rule
SUSP_Imphash_Mar23_3
Create hunting rule
Link:
https://www.unpac.me/results/ca3bd1ec-3507-48bb-8ac6-1705ac2e6485/
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/7af470dc705da73063fc90cbb2b7746ef2eaba7604ecb371d7ff234845025649

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:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
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: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_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.

Web download

RemcosRAT

Executable exe 7af470dc705da73063fc90cbb2b7746ef2eaba7604ecb371d7ff234845025649

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2789049/

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

Comments


Avatar
zbet commented on 2024-03-21 17:43:39 UTC

url : hxxp://198.23.187.132/W2003T/wininit.exe