MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b76a896c8faf8ca28e4f0ecce91e7a622c3ea8999f27503ac9f46e09542c26f7. 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: 18


Intelligence 18 IOCs YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b76a896c8faf8ca28e4f0ecce91e7a622c3ea8999f27503ac9f46e09542c26f7
SHA3-384 hash: 2001b255151ffbcd5ff395c73bd53c37a6594628d46ba11c2128bd68229c3309cad38bbf2c4c0d1c0d46fccc04ab14a0
SHA1 hash: 387312f70d7bd53a4ab5a779a38d125d731323cc
MD5 hash: caad5e1ae920d351c2521be2dc5f22fc
humanhash: early-vermont-washington-whiskey
File name:845c3ba76768948ab3df490599f02d060cd464c6251e16e7847d53707254ee46_dump.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:94'208 bytes
First seen:2024-06-23 12:07:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash d3a62971944197f0701c7049a9c739d1 (60 x RemcosRAT)
ssdeep 1536:IhhW0YTGZWdVseJxaM9kraLdV2QkQ1TbPX8IHOCkIsI4ESHNTh9E+JP19qkP66rA:OhzYTGWVvJ8f2v1TbPzuMsIFSHNThy+q
TLSH T1FF93C813FA4AD0B2E46591F146426F31CEBCBC3736492173D38FCA419D79892D416EAE
TrID 33.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
17.6% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
14.0% (.SCR) Windows screen saver (13097/50/3)
11.2% (.EXE) Win64 Executable (generic) (10523/12/4)
7.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
File icon (PE):PE icon
dhash icon 989894b49c9494f0 (43 x RemcosRAT)
Reporter ukycircle
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
421
Origin country :
JP JP
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
b76a896c8faf8ca28e4f0ecce91e7a622c3ea8999f27503ac9f46e09542c26f7.exe
Verdict:
Malicious activity
Analysis date:
2024-06-23 12:08:53 UTC
Tags:
rat remcos remote
Link:
https://app.any.run/tasks/639c19ec-e830-49f8-b6ba-ec60edb31336

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Malware.Azden-7587127-0
Create hunting rule

Win.Malware.Rescoms-6598304-0
Create hunting rule

Win.Malware.Zusy-6832224-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6678102333f13d42068c6970win7simulatehigh_evasion
Tags:
Generic Stealth Remcos
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Setting a keyboard event handler
Creating a file in the %AppData% subdirectories
Connection attempt to an infection source
Sending a TCP request to an infection source
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug anti-vm anti-vm epmicrosoft_visual_cc evasive evasive eventvwr explorer fingerprint hook keylogger lolbin microsoft_visual_cc remcos shell32
Link:
https://www.filescan.io/uploads/667810229fd5f9d5921069f1/reports/fc38f5f5-22d0-4023-b0bc-6cdc8e3bbb85/overview
Verdict:
Malicious
Labled as:
Trojan.Agent
Link:
https://www.hybrid-analysis.com/sample/b76a896c8faf8ca28e4f0ecce91e7a622c3ea8999f27503ac9f46e09542c26f7
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/a7d8849b-a645-43d2-b9c6-85c18a441181
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1461254
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Contains functionality to capture and log keystrokes
Contains functionality to detect virtual machines (IN, VMware)
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
Detected Remcos RAT
Found malware configuration
Found stalling execution ending in API Sleep call
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b76a896c8faf8ca28e4f0ecce91e7a622c3ea8999f27503ac9f46e09542c26f7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b76a896c8faf8ca28e4f0ecce91e7a622c3ea8999f27503ac9f46e09542c26f7/
Threat name:
Win32.Backdoor.Rescoms
Create hunting rule
Status:
Malicious
First seen:
2024-06-23 12:08:04 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w5vis3epv6gkfdspb3gosht2miwd5kezt4tvaowj6rxasvbme33q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:banksy
Link:
https://tria.ge/reports/240623-pavzbazbre/
Behaviour
Suspicious use of SetWindowsHookEx
Malware Config
C2 Extraction:
62.102.148.166:3319
Unpacked files
SH256 hash:
b76a896c8faf8ca28e4f0ecce91e7a622c3ea8999f27503ac9f46e09542c26f7
MD5 hash:
caad5e1ae920d351c2521be2dc5f22fc
SHA1 hash:
387312f70d7bd53a4ab5a779a38d125d731323cc
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_g0
Create hunting rule
Remcos
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Link:
https://www.unpac.me/results/06d73fb1-aedf-4982-9c2a-ee001c079f49/
Parent samples :
33cc55fef11d691d7728275b1e7dfc61520cef61bb0035de7dfb8e648f086f50
43281415b361da4215bb7a4a0a950b2c95c2d772f315d451088ffd53480de73f
7d7cf9b0a09e74a8a10b23b2265a31b41b0f017f18c965987ac47acebac15268
845c3ba76768948ab3df490599f02d060cd464c6251e16e7847d53707254ee46
b76a896c8faf8ca28e4f0ecce91e7a622c3ea8999f27503ac9f46e09542c26f7
253ae6027d114caeb26331508c9c916b54fe3561faf46679c06c48dad8860cac
d21d0451a7a8b112776118d88154bf7eab2703b13bf6ae1dcaec2f959bf42305
86329825eaf86f08f84bfc3ddd8870b5c05f47a43aba3695eea5ca4c7a0ee00b
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b76a896c8faf/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/b76a896c8faf8ca28e4f0ecce91e7a622c3ea8999f27503ac9f46e09542c26f7

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:CMD_Ping_Localhost
Create hunting rule
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:malware_Remcos_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:Remcos
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Generic_Threat_994f2330
Create hunting rule
Author:Elastic Security
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.

File information

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

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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
GDI_PLUS_APIInterfaces with Graphicsgdiplus.dll::GdiplusStartup
gdiplus.dll::GdipGetImageEncoders
gdiplus.dll::GdipGetImageEncodersSize
gdiplus.dll::GdipAlloc
MULTIMEDIA_APICan Play MultimediaWINMM.dll::waveInAddBuffer
WINMM.dll::waveInClose
WINMM.dll::waveInOpen
WINMM.dll::waveInPrepareHeader
WINMM.dll::waveInStart
WINMM.dll::waveInStop
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteA
SHELL32.dll::ShellExecuteExA
SHELL32.dll::ShellExecuteW
URL_MONIKERS_APICan Download & Execute componentsurlmon.dll::URLDownloadToFileA
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessA
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::VirtualAllocEx
KERNEL32.dll::WriteProcessMemory
KERNEL32.dll::CloseHandle
WININET.dll::InternetCloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetDriveTypeA
KERNEL32.dll::GetStartupInfoA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WinExec
KERNEL32.dll::AllocConsole
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileA
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateDirectoryA
KERNEL32.dll::CreateFileMappingA
KERNEL32.dll::DeleteFileA
KERNEL32.dll::DeleteFileW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LookupPrivilegeValueA
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExA
ADVAPI32.dll::RegCreateKeyA
ADVAPI32.dll::RegDeleteKeyA
ADVAPI32.dll::RegOpenKeyExA
ADVAPI32.dll::RegQueryInfoKeyA
ADVAPI32.dll::RegQueryValueExA
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuA
USER32.dll::EmptyClipboard
USER32.dll::FindWindowA
USER32.dll::OpenClipboard
USER32.dll::CreateWindowExA

Comments