MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 48bc32a1d2d84b7c3f61d1839972c2d36b14d3ab30270cad4cbb4d3b04205407. 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: 17


Intelligence 17 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 48bc32a1d2d84b7c3f61d1839972c2d36b14d3ab30270cad4cbb4d3b04205407
SHA3-384 hash: 17b2b0b1eb33478f7af83b0428a0c88ec3482b4d2ad18b78587b214c7b27e2e4a51d704ebfbe452a2e996de09710a869
SHA1 hash: b34742a5ccae99ca650eb7b9b15e8e709a5a0e09
MD5 hash: b30be2bc141cfd8968a7a04c9829f9e6
humanhash: harry-winner-pluto-winner
File name:01_deb64ed.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'332'224 bytes
First seen:2024-07-22 20:29:24 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:wAHnh+eWsN3skA4RV1Hom2KXMmHamxu8cYi4BzzaYOiNvKGW5:nh+ZkldoPK8YamxBcY3Bfa0Ny3
TLSH T17755CE0273D5C032FFABA2739B6AF24556BC79254133952F13982D79BD701B2223E663
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 Racco42
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
419
Origin country :
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
48bc32a1d2d84b7c3f61d1839972c2d36b14d3ab30270cad4cbb4d3b04205407.exe
Verdict:
Suspicious activity
Analysis date:
2024-07-23 16:21:29 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/bb2e93c1-9ec9-4444-b01b-5eed8c8a2280

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Autoit-10033589-0
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=669ec14c2f6eaff4b90f36f6
Tags:
Discovery Network Stealth Trojan
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
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
Enabling autorun by creating a file
Unauthorized injection to a system process
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/669ec14ba537d9330be1b6d9/reports/a424cecc-a6d8-4c3c-b7ec-aeac84eabd3d/overview
Verdict:
Malicious
Labled as:
AIT:Trojan.Nymeria
Link:
https://www.hybrid-analysis.com/sample/48bc32a1d2d84b7c3f61d1839972c2d36b14d3ab30270cad4cbb4d3b04205407
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/457f730e-75cf-4bac-b4f2-27e0b460d137
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1478666
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 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
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Uses dynamic DNS services
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: 1478666 Sample: 01_deb64ed.exe Startdate: 22/07/2024 Architecture: WINDOWS Score: 100 42 ocservice.duckdns.org 2->42 44 geoplugin.net 2->44 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 Multi AV Scanner detection for submitted file 2->62 66 9 other signatures 2->66 9 01_deb64ed.exe 6 2->9         started        13 wscript.exe 1 2->13         started        signatures3 64 Uses dynamic DNS services 42->64 process4 file5 38 C:\Users\user\AppData\Local\...\name.exe, PE32 9->38 dropped 84 Binary is likely a compiled AutoIt script file 9->84 15 name.exe 3 9->15         started        86 Windows Scripting host queries suspicious COM object (likely to drop second stage) 13->86 19 name.exe 2 13->19         started        signatures6 process7 file8 40 C:\Users\user\AppData\Roaming\...\name.vbs, data 15->40 dropped 50 Multi AV Scanner detection for dropped file 15->50 52 Binary is likely a compiled AutoIt script file 15->52 54 Machine Learning detection for dropped file 15->54 56 4 other signatures 15->56 21 svchost.exe 3 16 15->21         started        25 name.exe 2 19->25         started        27 svchost.exe 19->27         started        signatures9 process10 dnsIp11 46 ocservice.duckdns.org 188.165.120.122, 49730, 6622 OVHFR France 21->46 48 geoplugin.net 178.237.33.50, 49731, 80 ATOM86-ASATOM86NL Netherlands 21->48 70 System process connects to network (likely due to code injection or exploit) 21->70 72 Contains functionality to bypass UAC (CMSTPLUA) 21->72 74 Detected Remcos RAT 21->74 82 6 other signatures 21->82 29 WerFault.exe 22 16 21->29         started        31 WerFault.exe 16 21->31         started        33 conhost.exe 21->33         started        76 Binary is likely a compiled AutoIt script file 25->76 78 Writes to foreign memory regions 25->78 80 Maps a DLL or memory area into another process 25->80 35 svchost.exe 25->35         started        signatures12 process13 signatures14 68 Detected Remcos RAT 35->68
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/48bc32a1d2d84b7c3f61d1839972c2d36b14d3ab30270cad4cbb4d3b04205407
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/48bc32a1d2d84b7c3f61d1839972c2d36b14d3ab30270cad4cbb4d3b04205407/
Threat name:
Win32.Trojan.Nymeria
Create hunting rule
Status:
Malicious
First seen:
2024-07-22 20:30:06 UTC
File Type:
PE (Exe)
Extracted files:
24
AV detection:
17 of 38 (44.74%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jc6dfios3bfxyp3b2gbzs4wc2nvrju5lgatqzlkmxngtwbbakqdq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost rat
Link:
https://tria.ge/reports/240722-y95ggaxbql/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
AutoIT Executable
Suspicious use of SetThreadContext
Drops startup file
Executes dropped EXE
Loads dropped DLL
Remcos
Malware Config
C2 Extraction:
ocservice.duckdns.org:6622
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/95e26aec-3fd2-49ee-9d9a-58467708fa8f
Unpacked files
SH256 hash:
d1263e088cda0c350f790e19f9db7e38b143e39e1138723811b89a7d85f53771
MD5 hash:
98eb50dd3151fd1ccc97142cba064fde
SHA1 hash:
dbe0c4da5419577b248ea167257653cea5c914fe
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_w0
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
Link:
https://www.unpac.me/results/e35e8fae-182d-4e9a-82f7-0dbc246a3e92/
Parent samples :
48bc32a1d2d84b7c3f61d1839972c2d36b14d3ab30270cad4cbb4d3b04205407
d1263e088cda0c350f790e19f9db7e38b143e39e1138723811b89a7d85f53771
248653074d88fac18a59e758a14fac1c0dcb8af24f32b17a43a15222cf93576e
eb183cf5d6e217532b203ab9f336e266537828eed01c53158da95d609f4ebea6
SH256 hash:
48bc32a1d2d84b7c3f61d1839972c2d36b14d3ab30270cad4cbb4d3b04205407
MD5 hash:
b30be2bc141cfd8968a7a04c9829f9e6
SHA1 hash:
b34742a5ccae99ca650eb7b9b15e8e709a5a0e09
Detections:
AutoIT_Compiled
Create hunting rule
SUSP_Imphash_Mar23_3
Create hunting rule
Link:
https://www.unpac.me/results/e35e8fae-182d-4e9a-82f7-0dbc246a3e92/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/48bc32a1d2d8/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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 48bc32a1d2d84b7c3f61d1839972c2d36b14d3ab30270cad4cbb4d3b04205407

(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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