MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 83fd4f6c8ca4ae094ea629eda985b11e495aa8f6c8421970ef8573a50808e344. 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: 16


Intelligence 16 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 83fd4f6c8ca4ae094ea629eda985b11e495aa8f6c8421970ef8573a50808e344
SHA3-384 hash: 0ce7bceec98e22dfd14feb4b757d7369820561f87da8734c319fa7e558e34f33320fbd31e0f68edff5b4092cc8a487fd
SHA1 hash: 90c96e8671f739a0a20daaafab1567d3c457a612
MD5 hash: 2e58a14f3a8d78298aee99cb4ea39adc
humanhash: spring-pip-pennsylvania-bulldog
File name:Quote.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'654'741 bytes
First seen:2024-10-08 17:19:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash aaaa8913c89c8aa4a5d93f06853894da (246 x Formbook, 82 x AgentTesla, 74 x RedLineStealer)
ssdeep 24576:ffmMv6Ckr7Mny5QLH0yTfIXPlFb2wjVkwAE9owb7uVJnIJYKR3prW4BoPEK8X3PR:f3v+7/5QLVYdkQ99b7ujIJjixkyKi87
Threatray 275 similar samples on MalwareBazaar
TLSH T1B6750222B7D680F6DDA33970293BE32A9B3475194333C4DB97F12E768E211509B3A761
TrID 84.9% (.EXE) AutoIt3 compiled script executable (510622/80/67)
9.5% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
1.7% (.EXE) Win64 Executable (generic) (10523/12/4)
1.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
0.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
File icon (PE):PE icon
dhash icon b150b26869b2d471 (468 x Formbook, 101 x RedLineStealer, 94 x AgentTesla)
Reporter lowmal3
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
378
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Quote.exe
Verdict:
No threats detected
Analysis date:
2024-10-08 17:24:28 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4973cc05-1534-4e3d-8082-1f9b5c44aa9a

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

Gathering data
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
autoit epmicrosoft_visual_cc fingerprint keylogger lolbin microsoft_visual_cc overlay packed remcos shell32
Link:
https://www.filescan.io/uploads/670569c706f0c2314b42f255/reports/5c1b4f37-7062-45c4-9ba7-2ac20a96f334/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/83fd4f6c8ca4ae094ea629eda985b11e495aa8f6c8421970ef8573a50808e344
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/b803a53a-a778-4a09-8065-25c6b6c46e37
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/1529222
Signature
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to detect sleep reduction / modifications
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
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
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 UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1529222 Sample: Quote.exe Startdate: 08/10/2024 Architecture: WINDOWS Score: 100 52 www.projectusf.com 2->52 54 tse1.mm.bing.net 2->54 56 2 other IPs or domains 2->56 76 Suricata IDS alerts for network traffic 2->76 78 Found malware configuration 2->78 80 Malicious sample detected (through community Yara rule) 2->80 82 10 other signatures 2->82 10 Quote.exe 3 2->10         started        14 wscript.exe 1 2->14         started        signatures3 process4 file5 48 C:\Users\user\AppData\Local\...\Quotes.exe, PE32 10->48 dropped 102 Contains functionality to detect sleep reduction / modifications 10->102 16 Quotes.exe 1 10->16         started        104 Windows Scripting host queries suspicious COM object (likely to drop second stage) 14->104 20 Quotes.exe 14->20         started        signatures6 process7 file8 46 C:\Users\user\AppData\Roaming\...\Quotes.vbs, data 16->46 dropped 64 Multi AV Scanner detection for dropped file 16->64 66 Machine Learning detection for dropped file 16->66 68 Drops VBS files to the startup folder 16->68 74 2 other signatures 16->74 22 svchost.exe 16->22         started        25 Quotes.exe 16->25         started        70 Writes to foreign memory regions 20->70 72 Maps a DLL or memory area into another process 20->72 27 svchost.exe 14 20->27         started        signatures9 process10 signatures11 84 Contains functionality to bypass UAC (CMSTPLUA) 22->84 86 Contains functionalty to change the wallpaper 22->86 88 Contains functionality to steal Chrome passwords or cookies 22->88 100 3 other signatures 22->100 90 Writes to foreign memory regions 25->90 29 svchost.exe 3 14 25->29         started        34 BackgroundTransferHost.exe 25->34         started        92 System process connects to network (likely due to code injection or exploit) 27->92 94 Detected Remcos RAT 27->94 96 Maps a DLL or memory area into another process 27->96 98 Installs a global keyboard hook 27->98 36 svchost.exe 27->36         started        38 svchost.exe 27->38         started        40 svchost.exe 27->40         started        process12 dnsIp13 58 geoplugin.net 178.237.33.50, 49790, 49885, 80 ATOM86-ASATOM86NL Netherlands 29->58 60 www.projectusf.com 103.186.117.77, 2404, 49780, 49789 AARNET-AS-APAustralianAcademicandResearchNetworkAARNe unknown 29->60 50 C:\ProgramData\gfh\logs.dat, data 29->50 dropped 106 Detected Remcos RAT 29->106 108 Installs a global keyboard hook 29->108 42 WerFault.exe 23 16 29->42         started        44 WerFault.exe 2 16 29->44         started        62 ax-0001.ax-msedge.net 150.171.27.10, 443, 49914, 49919 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 34->62 110 Tries to steal Instant Messenger accounts or passwords 36->110 112 Tries to steal Mail credentials (via file / registry access) 36->112 114 Tries to harvest and steal browser information (history, passwords, etc) 38->114 file14 signatures15 process16
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/83fd4f6c8ca4ae094ea629eda985b11e495aa8f6c8421970ef8573a50808e344
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/83fd4f6c8ca4ae094ea629eda985b11e495aa8f6c8421970ef8573a50808e344/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-10-08 16:14:05 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
23 of 37 (62.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qp6u63emusxastvgfhw2tbnrdzevvkhwzbbbs4hpqvz2kcai4nca._file
Verdict:
malicious
Label(s):
admintool_powerrun
Create hunting rule
Similar samples:
1640e87780b219eba703c734e68b0f5cf793bc94fe0cdf9121658d12bb1f9364
RemcosRAT
89bf0303ddc028f24388edc3ca7f0384b10db50dacc42cb96dac2e4d677213f0
RemcosRAT
ab1a43c5eb5c82a3199a543deb4e3289c9fa0a2439e2f962c6774772227e5cdf
RemcosRAT
c6789cf795ae3fb1084f4eec8b4cbea4f5b345df502738b2b7afc5bcfa47a852
RemcosRAT
error
RemcosRAT
+ 265 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection discovery rat
Link:
https://tria.ge/reports/241008-vwd6kszfnc/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
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
Malware Config
C2 Extraction:
www.projectusf.com:2404
Verdict:
Malicious
Tags:
remcos
YARA:
n/a
Link:
https://app.threat.zone/submission/cb191d19-14b5-41cc-841a-cf5051445e7b
Unpacked files
SH256 hash:
66dbd4139be7accf2c2aed89474771a54ccb9c23a4ecd1fe82836a91ca3f7ff4
MD5 hash:
a930d9aea2b1e75cdc05998127c05eba
SHA1 hash:
6ad0d89bfd465e8e5eb634c362b24decb9b1c9ee
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
win_remcos_rat_unpacked
Create hunting rule
Link:
https://www.unpac.me/results/8b07b01d-5959-4fee-95ec-37d9fbb286a2/
Parent samples :
66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d
929167f47e1116759145eb457f86474a311374373b05b11438ea1222a9e2a8f0
e18f7d1e4381c956556250ca9be9e97377b602ebd0ab96b1c092682596a90fbf
83fd4f6c8ca4ae094ea629eda985b11e495aa8f6c8421970ef8573a50808e344
76c073734ff5f0942c8c539be408367b83a78ce995e8d9502bea6e9d83d1c3ad
e4ace06a385ffb8c6fc0fe10739551815c51e3191395c3c80d0254671d982657
42935d2557a1d94823d32a2d9e6017a33f961b9e672292beed123d4b41c81c20
SH256 hash:
83fd4f6c8ca4ae094ea629eda985b11e495aa8f6c8421970ef8573a50808e344
MD5 hash:
2e58a14f3a8d78298aee99cb4ea39adc
SHA1 hash:
90c96e8671f739a0a20daaafab1567d3c457a612
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/8b07b01d-5959-4fee-95ec-37d9fbb286a2/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/83fd4f6c8ca4/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/83fd4f6c8ca4ae094ea629eda985b11e495aa8f6c8421970ef8573a50808e344

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
Create hunting rule
Author:Jean-Philippe Teissier / @Jipe_
Description:AutoIT packer
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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants

File information

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

Malspam

RemcosRAT

Executable exe 83fd4f6c8ca4ae094ea629eda985b11e495aa8f6c8421970ef8573a50808e344

(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
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::CopySid
ADVAPI32.dll::GetLengthSid
ADVAPI32.dll::GetAce
USER32.dll::GetUserObjectSecurity
ADVAPI32.dll::InitializeAcl
ADVAPI32.dll::InitializeSecurityDescriptor
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::DuplicateTokenEx
ADVAPI32.dll::GetAclInformation
ADVAPI32.dll::GetSecurityDescriptorDacl
ADVAPI32.dll::GetTokenInformation
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::LoadLibraryW
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetDriveTypeW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
KERNEL32.dll::CreateFileW
KERNEL32.dll::CreateFileA
KERNEL32.dll::DeleteFileW
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_SVC_APICan Manipulate Windows ServicesADVAPI32.dll::OpenSCManagerW
ADVAPI32.dll::UnlockServiceDatabase
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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