MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4e11fd9ebcd710646c1c685691837f3e2d4983e9232279ece12a6db9be569ba1. 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: 15


Intelligence 15 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4e11fd9ebcd710646c1c685691837f3e2d4983e9232279ece12a6db9be569ba1
SHA3-384 hash: b8808f7236616eb77acb461274597f97e1ab9979f8acc772aa5e7d2ac8ca3820a6b314ba515540085d1223a876575224
SHA1 hash: e0bc18e19d753f1a09611416c8fea46d3453aac7
MD5 hash: b60c1b642765e2156730e910dbbed55a
humanhash: cat-butter-nevada-sodium
File name:file
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:529'112 bytes
First seen:2024-10-02 13:27:05 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (533 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer)
ssdeep 12288:7813Q9hg+AKfsc/5a+NCGO1UA/DEkINz3WSV/:78lQ96+YcAvwygNz31
TLSH T13BB4235161DAC287F8E30F7219253F6AADE5B50071F22AEB9329378D7C325819E1B391
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 10f0c4c8c8c4f010 (26 x AgentTesla, 18 x Smoke Loader, 10 x Formbook)
Reporter jstrosch
Tags:exe RemcosRAT signed

Code Signing Certificate

Organisation:Eksilernes Traversens Tilsynekomsters
Issuer:Eksilernes Traversens Tilsynekomsters
Algorithm:sha256WithRSAEncryption
Valid from:2024-09-12T08:58:23Z
Valid to:2027-09-12T08:58:23Z
Serial number: 782dedd9f597070ddd7596fe8b64ee8ae70b5d8b
Thumbprint Algorithm:SHA256
Thumbprint: e5cff4c39376bff528a458c4e6987cbd68b32940ffd9219d1b37be12b9cf082f
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform


Avatar
jstrosch
Found at hxxp://192.3.220[.]22/430/dllhost.exe by #subcrawl

Intelligence

File Origin
# of uploads :
1
# of downloads :
359
Origin country :
US US
Vendor Threat Intelligence
Malware family:
guloader
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-10-02 13:29:27 UTC
Tags:
guloader loader rat remcos remote evasion
Link:
https://app.any.run/tasks/5ac3fdad-4d94-40fe-8258-15002f175214

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66fd4a63780a9b632d227e0b
Tags:
Powershell Gumen Nsis
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the Windows directory
Searching for the window
Launching a process
Using the Windows Management Instrumentation requests
Creating a file in the %temp% directory
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
installer lolbin microsoft_visual_cc overlay packed shell32
Link:
https://www.filescan.io/uploads/66fd4a6588188863f38dc3c0/reports/2ab4e9e6-5ac5-4a7e-85e3-088a419caef4/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/4e11fd9ebcd710646c1c685691837f3e2d4983e9232279ece12a6db9be569ba1
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:
Suspicious
Link:
https://analyze.intezer.com/analyses/2c644d4d-cad7-42e0-a623-684c2cefb2c5
Result
Threat name:
Remcos, GuLoader
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1524136
Signature
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Detected Remcos RAT
Detected unpacking (changes PE section rights)
Early bird code injection technique detected
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Loading BitLocker PowerShell Module
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Powershell drops PE file
Queues an APC in another process (thread injection)
Sigma detected: Remcos
Suricata IDS alerts for network traffic
Suspicious powershell command line found
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Writes to foreign memory regions
Yara detected GuLoader
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1524136 Sample: file.exe Startdate: 02/10/2024 Architecture: WINDOWS Score: 100 43 geoplugin.net 2->43 51 Suricata IDS alerts for network traffic 2->51 53 Found malware configuration 2->53 55 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->55 57 7 other signatures 2->57 10 file.exe 3 28 2->10         started        signatures3 process4 file5 37 C:\Users\user\AppData\...\overcheaply.Dum, ASCII 10->37 dropped 73 Suspicious powershell command line found 10->73 14 powershell.exe 28 10->14         started        signatures6 process7 file8 39 C:\Users\user\AppData\Local\...\unpastor.exe, PE32 14->39 dropped 41 C:\Users\...\unpastor.exe:Zone.Identifier, ASCII 14->41 dropped 75 Early bird code injection technique detected 14->75 77 Writes to foreign memory regions 14->77 79 Found suspicious powershell code related to unpacking or dynamic code loading 14->79 81 3 other signatures 14->81 18 unpastor.exe 5 14 14->18         started        22 conhost.exe 14->22         started        signatures9 process10 dnsIp11 45 107.173.4.16, 2404, 49720, 49722 AS-COLOCROSSINGUS United States 18->45 47 geoplugin.net 178.237.33.50, 49721, 80 ATOM86-ASATOM86NL Netherlands 18->47 49 192.3.220.22, 49718, 80 AS-COLOCROSSINGUS United States 18->49 59 Multi AV Scanner detection for dropped file 18->59 61 Detected unpacking (changes PE section rights) 18->61 63 Detected Remcos RAT 18->63 65 3 other signatures 18->65 24 unpastor.exe 1 18->24         started        27 unpastor.exe 1 18->27         started        29 unpastor.exe 14 18->29         started        31 cmd.exe 1 18->31         started        signatures12 process13 signatures14 67 Tries to steal Instant Messenger accounts or passwords 24->67 69 Tries to harvest and steal browser information (history, passwords, etc) 24->69 71 Tries to steal Mail credentials (via file / registry access) 27->71 33 conhost.exe 31->33         started        35 reg.exe 1 1 31->35         started        process15
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4e11fd9ebcd710646c1c685691837f3e2d4983e9232279ece12a6db9be569ba1
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4e11fd9ebcd710646c1c685691837f3e2d4983e9232279ece12a6db9be569ba1/
Threat name:
Win32.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2024-10-02 13:28:05 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jyi73hv424igi3a4nbljda37hywuta7jemrht3hbfjw3tpswtoqq._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:rem_doc2 collection discovery execution persistence rat spyware stealer
Link:
https://tria.ge/reports/241002-qqm43sybll/
Behaviour
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Malware Config
C2 Extraction:
107.173.4.16:2404
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/2cca286d-42b6-48c3-be60-9fe395126e98
Unpacked files
SH256 hash:
4e11fd9ebcd710646c1c685691837f3e2d4983e9232279ece12a6db9be569ba1
MD5 hash:
b60c1b642765e2156730e910dbbed55a
SHA1 hash:
e0bc18e19d753f1a09611416c8fea46d3453aac7
Link:
https://www.unpac.me/results/46553499-d3a1-4611-97fc-e72a8c1e391c/
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/4e11fd9ebcd710646c1c685691837f3e2d4983e9232279ece12a6db9be569ba1

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:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

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

Web download

RemcosRAT

Executable exe 4e11fd9ebcd710646c1c685691837f3e2d4983e9232279ece12a6db9be569ba1

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3201691/

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
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::SetFileSecurityW
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::MoveFileExW
KERNEL32.dll::MoveFileW
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