MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 76dbfa281b158a18c83d08a907f087b7330da28bdd2298eb9ee2f23c1df40491. 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: 13


Intelligence 13 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 76dbfa281b158a18c83d08a907f087b7330da28bdd2298eb9ee2f23c1df40491
SHA3-384 hash: 5d27246a061f500d64cf4d93777b7e41da3edce0e1e4bece74e034b3e222dd37242ac11a1eb0af3304c834d741cfd632
SHA1 hash: 6f3e611fc7d7d5938b99575bcd96366d6e213eab
MD5 hash: 1c089552c29f12843d8cd8e2bbf5cf5b
humanhash: twenty-moon-nine-solar
File name:Q20240425 MAX5073626.com
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:794'761 bytes
First seen:2024-04-25 19:34:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 66fcdd6338ffed276966867e7cf86116 (9 x GuLoader, 2 x AgentTesla, 2 x RemcosRAT)
ssdeep 12288:K0Z4SNwhFaoncbHNsyBNzjdsO8aIaLJtBT7bbQ4:J4SO/wbtsQ9jdsFaxl3bbT
TLSH T13FF4AF6966481FF2DC3545B5B02F05682A407CF697A0258937E9BB1ADD3E3620F0BF1E
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon b2d0cc8eeed4d230 (1 x RemcosRAT)
Reporter Anonymous
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
403
Origin country :
US US
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
http://bigfile.mail.naver.com/download?fid=eXF9priZ1zEwHqEwKoJqHqurKovZKoElHqUmKotmFAU9KAvZFxUqHquXKxMrFAvwaxvjKo3SpxEZF6iopzM9Kx+4Fq29KrkvMx30aAFvpAC0KAu=
Verdict:
Malicious activity
Analysis date:
2024-04-25 01:06:31 UTC
Tags:
rat remcos remote stealer
Link:
https://app.any.run/tasks/8f16f564-0f4a-481a-9dec-90b6ed27e914

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file
Launching a process
Running batch commands
Using the Windows Management Instrumentation requests
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
lolbin masquerade overlay packed shell32
Link:
https://www.filescan.io/uploads/662ab067d2fc149e411e1d65/reports/115840bb-22a2-4e8e-bc89-ba645585bd09/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/76dbfa281b158a18c83d08a907f087b7330da28bdd2298eb9ee2f23c1df40491
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/dd185f9b-8020-47c5-8766-4eef1388636d
Result
Threat name:
Remcos, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1431846
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Detected Remcos RAT
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Obfuscated command line found
Powershell drops PE file
Sigma detected: Remcos
Suspicious powershell command line found
Writes to foreign memory regions
Yara detected GuLoader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/76dbfa281b158a18c83d08a907f087b7330da28bdd2298eb9ee2f23c1df40491
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/76dbfa281b158a18c83d08a907f087b7330da28bdd2298eb9ee2f23c1df40491/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-04-25 19:34:13 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
13 of 24 (54.17%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=o3n7uka3cwfbrsb5bcuqp4ehw4zq3iul3urjr2464lzdyhpuasiq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader downloader
Link:
https://tria.ge/reports/240425-yandxadh21/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Guloader,Cloudeye
Unpacked files
SH256 hash:
76dbfa281b158a18c83d08a907f087b7330da28bdd2298eb9ee2f23c1df40491
MD5 hash:
1c089552c29f12843d8cd8e2bbf5cf5b
SHA1 hash:
6f3e611fc7d7d5938b99575bcd96366d6e213eab
Link:
https://www.unpac.me/results/dd7fb3ff-6ffc-42e9-b6d7-765ab4201367/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/76dbfa281b15/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/76dbfa281b158a18c83d08a907f087b7330da28bdd2298eb9ee2f23c1df40491

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:NSIS_April_2024
Create hunting rule
Author:NDA0N
Description:Detects NSIS installers

File information

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

  
Delivery method
Distributed via e-mail link

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
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::SHFileOperationW
SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDiskFreeSpaceW
KERNEL32.dll::GetCommandLineW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileW
KERNEL32.dll::MoveFileExW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuW
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::OpenClipboard
USER32.dll::PeekMessageW
USER32.dll::CreateWindowExW

Comments