MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 86b6cfdcb0feccdea122debf61b51c1756e53def13a4468637539264ec35d208. 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

SHA256 hash: 86b6cfdcb0feccdea122debf61b51c1756e53def13a4468637539264ec35d208
SHA3-384 hash: 2b8f2ee842907928043be9fcbc8e6b022087882beba942208d2ab59c758b71603f85482f8bb512dfc9e07c1a9fc2fc35
SHA1 hash: 7950f8f92c4778f16e7f10313233ea6ddec0b990
MD5 hash: 4a0c104a8b44b6607bf92dc24972db67
humanhash: magazine-eleven-black-monkey
File name:86b6cfdcb0feccdea122debf61b51c1756e53def13a4468637539264ec35d208
Download: download sample
Signature RemcosRAT
File size:510'688 bytes
First seen:2024-10-08 14:13:20 UTC
Last seen:2024-11-07 14:17:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b78ecf47c0a3e24a6f4af114e2d1f5de (295 x GuLoader, 23 x Formbook, 21 x RemcosRAT)
ssdeep 6144:AC2Evn/IvIrb2mU/Vy5NkiQETBtCK1A/Dsz0KIS8QxNRuv0j1JtX7PXjrnCgLa55:VnC8CmU/MjkoBtCKmwxNEgzjLEcvB0
Threatray 2'776 similar samples on MalwareBazaar
TLSH T1E2B40190BA93D487F9158B7194A25668A7B17F20C17382777E88B7FD30363A19B1D2C3
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)
Magika pebin
File icon (PE):PE icon
dhash icon 1051d8b8eccc3476 (1 x GuLoader, 1 x RemcosRAT)
Reporter adrian__luca
Tags:exe RemcosRAT signed

Code Signing Certificate

Organisation:Brugerantallene Kunstmuseets
Issuer:Brugerantallene Kunstmuseets
Algorithm:sha256WithRSAEncryption
Valid from:2024-01-04T04:42:55Z
Valid to:2027-01-03T04:42:55Z
Serial number: 0ea1900cd713f76e75db5e197acb0d868b15b9cf
Thumbprint Algorithm:SHA256
Thumbprint: 283026153c326cb613d11dde83d6b42c676d1db47fe48a4ef6228659739afb11
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
3
# of downloads :
377
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
86b6cfdcb0feccdea122debf61b51c1756e53def13a4468637539264ec35d208
Verdict:
Malicious activity
Analysis date:
2024-10-08 14:13:17 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
94.1%
Tags:
Powershell Nsis
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
installer lolbin microsoft_visual_cc overlay packed shell32 signed
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.
Result
Threat name:
GuLoader
Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Mass process execution to delay analysis
Multi AV Scanner detection for submitted file
Obfuscated command line found
Tries to detect virtualization through RDTSC time measurements
Yara detected GuLoader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1529116 Sample: 4mS4e05nQp.exe Startdate: 08/10/2024 Architecture: WINDOWS Score: 88 37 Antivirus / Scanner detection for submitted sample 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 Yara detected GuLoader 2->41 43 AI detected suspicious sample 2->43 7 4mS4e05nQp.exe 2 31 2->7         started        process3 file4 33 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 7->33 dropped 35 C:\Users\user\AppData\Local\...\System.dll, PE32 7->35 dropped 45 Obfuscated command line found 7->45 47 Mass process execution to delay analysis 7->47 49 Tries to detect virtualization through RDTSC time measurements 7->49 11 cmd.exe 7->11         started        13 cmd.exe 7->13         started        15 cmd.exe 7->15         started        17 61 other processes 7->17 signatures5 process6 process7 19 Conhost.exe 11->19         started        21 Conhost.exe 13->21         started        23 Conhost.exe 15->23         started        25 Conhost.exe 17->25         started        27 Conhost.exe 17->27         started        29 Conhost.exe 17->29         started        31 58 other processes 17->31
Threat name:
Win32.Trojan.Generic
Status:
Malicious
First seen:
2024-09-19 12:10:34 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
13 of 24 (54.17%)
Threat level:
  2/5
Result
Malware family:
Score:
  10/10
Tags:
family:guloader family:remcos botnet:remotehost discovery downloader rat
Behaviour
Modifies system certificate store
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Loads dropped DLL
Guloader,Cloudeye
Remcos
Malware Config
C2 Extraction:
ejikeguys.lol:2404
Verdict:
Malicious
Tags:
loader guloader
YARA:
NSIS_GuLoader_July_2024
Unpacked files
SH256 hash:
482536968672d70279a5204060ff84ace25237f24b1bdf3b02e289d50ea5450c
MD5 hash:
4bbc9d77ef7f748f8c85750c3a445f0a
SHA1 hash:
d57a8304bb44ccdb3163b880b3c1bb213461399d
Detections:
win_flawedammyy_auto
SH256 hash:
4c86b238e64ecfaabe322a70fd78db229a663ccc209920f3385596a6e3205f78
MD5 hash:
375e8a08471dc6f85f3828488b1147b3
SHA1 hash:
1941484ac710fc301a7d31d6f1345e32a21546af
SH256 hash:
f60de820b021b5f8ced3d86213e6e5ce3ddd4d99feaa6edba595b49b165bb91d
MD5 hash:
95311c76af131a14f3a21a22f9178a95
SHA1 hash:
90098bf13b5efdc1d1040893187c6fb054910c7f
SH256 hash:
6a782a1c605e0e44fec09985301ecb1b36612622c083b58d3af6778c6c73a677
MD5 hash:
964de88ec2f026e974821d1bc6aa5d81
SHA1 hash:
7e2b07e7c2475ca960bdfba22726eb0c74570126
Detections:
win_flawedammyy_auto
SH256 hash:
86b6cfdcb0feccdea122debf61b51c1756e53def13a4468637539264ec35d208
MD5 hash:
4a0c104a8b44b6607bf92dc24972db67
SHA1 hash:
7950f8f92c4778f16e7f10313233ea6ddec0b990
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:Detect_SliverFox_String
Author:huoji
Description:Detect files is `SliverFox` malware
Rule name:Ins_NSIS_Buer_Nov_2020_1
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
Rule name:NSIS_GuLoader
Author:NDA0E
Description:Detects GuLoader using NSIS
Rule name:NSIS_GuLoader_July_2024
Author:NDA0E
Description:Detects GuLoader packed with NSIS installer
Rule name:PE_Digital_Certificate
Author:albertzsigovits

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_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::SetFileSecurityA
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteA
SHELL32.dll::SHFileOperationA
SHELL32.dll::SHGetFileInfoA
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessA
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryExA
KERNEL32.dll::GetDiskFreeSpaceA
KERNEL32.dll::GetCommandLineA
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileA
KERNEL32.dll::CreateDirectoryA
KERNEL32.dll::CreateFileA
KERNEL32.dll::DeleteFileA
KERNEL32.dll::MoveFileExA
KERNEL32.dll::MoveFileA
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueA
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExA
ADVAPI32.dll::RegDeleteKeyA
ADVAPI32.dll::RegOpenKeyExA
ADVAPI32.dll::RegQueryValueExA
ADVAPI32.dll::RegSetValueExA
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuA
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExA
USER32.dll::OpenClipboard
USER32.dll::PeekMessageA
USER32.dll::CreateWindowExA

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