MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb. 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
| SHA256 hash: | f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb |
|---|---|
| SHA3-384 hash: | 97b57f22130fc46696ba0ee6515486f45005e775be8f358a8386a099bcd0a47f79cd1b6563289268de74698700dc348b |
| SHA1 hash: | 57bdad62c6ea7f1b905c900302f918d185811a94 |
| MD5 hash: | 4fb3e6e7b8f9c12cd2d5e161f7b94760 |
| humanhash: | hotel-equal-cup-cat |
| File name: | 4fb3e6e7b8f9c12cd2d5e161f7b94760 |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 2'673'152 bytes |
| First seen: | 2024-07-26 08:36:05 UTC |
| Last seen: | 2024-07-26 10:40:39 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | fa79c8f1c618648f2275daa90f4c6120 (2 x RemcosRAT, 1 x AgentTesla) |
| ssdeep | 49152:Og7eO7kjTav5AwVZGsY3uS+s1vm1lvt+vU0JSziMwqM:j7lmmUM7wq |
| Threatray | 4'310 similar samples on MalwareBazaar |
| TLSH | T1E5C5C015E3E802A5D47BD630CE699733D3B1B8591734D68B0A4DD6862FB3A918B3F312 |
| TrID | 72.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19) 13.2% (.EXE) Win64 Executable (generic) (10523/12/4) 6.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 2.5% (.EXE) OS/2 Executable (generic) (2029/13) 2.5% (.EXE) Generic Win/DOS Executable (2002/3) |
| Reporter |  zbetcheckin |
| Tags: | 64 exe RemcosRAT |
Intelligence
File Origin
# of uploads :
2
# of downloads :
435
Origin country :
FRVendor Threat Intelligence
Verdict:
Malicious
Score:
90.9%
Tags:
Execution Network Static Remcos
Result
Verdict:
Malware
Maliciousness:
Behaviour
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Launching a process
Сreating synchronization primitives
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
fingerprint hacktool lolbin microsoft_visual_cc packed regedit remcos remote shell32
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
Verdict:
Malicious
Result
Threat name:
Remcos
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
AI detected suspicious sample
Allocates memory in foreign processes
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
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Detection:
remcos
Threat name:
Win64.Backdoor.Remcos
Status:
Malicious
First seen:
2024-07-26 08:10:29 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
18 of 24 (75.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 4'300 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos botnet:gasplant discovery rat
Behaviour
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Remcos
Malware Config
C2 Extraction:
unifrieghtmovers.com:2558
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb
MD5 hash:
4fb3e6e7b8f9c12cd2d5e161f7b94760
SHA1 hash:
57bdad62c6ea7f1b905c900302f918d185811a94
Malware family:
Remcos
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerCheck__MemoryWorkingSet |
|---|---|
| Author: | Fernando Mercês |
| Description: | Anti-debug process memory working set size check |
| Reference: | http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/ |
| Rule name: | Disable_Defender |
|---|---|
| Author: | iam-py-test |
| Description: | Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | RIPEMD160_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for RIPEMD-160 constants |
| Rule name: | SEH__vectored |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | SHA1_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA1 constants |
| Rule name: | ThreadControl__Context |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
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
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (GUARD_CF) | high |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| AUTH_API | Manipulates User Authorization | ADVAPI32.dll::CreateWellKnownSid ADVAPI32.dll::RevertToSelf ADVAPI32.dll::GetSecurityDescriptorLength |
| SECURITY_BASE_API | Uses Security Base API | ADVAPI32.dll::AdjustTokenPrivileges ADVAPI32.dll::DuplicateTokenEx ADVAPI32.dll::GetWindowsAccountDomainSid |
| WIN32_PROCESS_API | Can Create Process and Threads | KERNEL32.dll::CreateProcessA KERNEL32.dll::CreateProcessW ADVAPI32.dll::OpenProcessToken ADVAPI32.dll::OpenThreadToken ADVAPI32.dll::SetThreadToken KERNEL32.dll::VirtualAllocExNuma |
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetSystemInfo |
| WIN_BASE_EXEC_API | Can Execute other programs | KERNEL32.dll::AllocConsole KERNEL32.dll::FreeConsole KERNEL32.dll::GetConsoleOutputCP KERNEL32.dll::GetConsoleWindow |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::CopyFileExW KERNEL32.dll::CreateFileW KERNEL32.dll::DeleteFileW |
| WIN_BASE_USER_API | Retrieves Account Information | ADVAPI32.dll::LookupPrivilegeValueW |
| WIN_BCRYPT_API | Can Encrypt Files | bcrypt.dll::BCryptDecrypt bcrypt.dll::BCryptDestroyKey bcrypt.dll::BCryptEncrypt bcrypt.dll::BCryptGenRandom bcrypt.dll::BCryptImportKey bcrypt.dll::BCryptOpenAlgorithmProvider |
| WIN_REG_API | Can Manipulate Windows Registry | ADVAPI32.dll::RegCreateKeyExW ADVAPI32.dll::RegDeleteKeyExW ADVAPI32.dll::RegOpenKeyExW ADVAPI32.dll::RegQueryInfoKeyW ADVAPI32.dll::RegQueryValueExW ADVAPI32.dll::RegSetValueExW |
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