MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 49a98a42ff6fff1b7dae074cb3c325ba9df2183dceb69feae6c0e7322ac94eb2. 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 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 49a98a42ff6fff1b7dae074cb3c325ba9df2183dceb69feae6c0e7322ac94eb2
SHA3-384 hash: f2e1a6dfba1e9e5b2e20f545684ddfe43db03aec9d8aeab52931480ed2ae07a67c985244b4d1cd1343a4ec52074e2ca2
SHA1 hash: b279456145ffd08bfa865d4e91f30e8937dedf43
MD5 hash: 132eb916f17784af53b68c820ce41bc3
humanhash: helium-lemon-five-vermont
File name:132EB916F17784AF53B68C820CE41BC3.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'139'200 bytes
First seen:2024-04-20 17:25:16 UTC
Last seen:2024-04-20 18:20:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ecd0012299b0e655dab241f2e23e3bb7 (3 x RemcosRAT, 1 x DBatLoader)
ssdeep 24576:0JIq+wADGZYx4t/yVrQ9JO85sfip46OV/b7Dejv:eNAXCSfs8V/b7Sjv
TLSH T19B353A23F5A4C822F03A1D78DB1697F0D83E6F22392758553ED47B091A3EB932A75193
TrID 54.3% (.EXE) InstallShield setup (43053/19/16)
16.5% (.SCR) Windows screen saver (13097/50/3)
13.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.EXE) Win32 Executable (generic) (4504/4/1)
2.6% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon e0d1d1d1d1c4a9a8 (3 x RemcosRAT, 2 x DBatLoader)
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
45.9.168.238:1984

Intelligence

File Origin
# of uploads :
2
# of downloads :
539
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
Purchase_Order_11073530.pdf.html.zip
Verdict:
Malicious activity
Analysis date:
2024-04-16 11:17:54 UTC
Tags:
dbatloader rat remcos keylogger
Link:
https://app.any.run/tasks/92546509-0135-46d2-b0cc-34dffbbd8bc1

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

Behaviour
Сreating synchronization primitives
Creating a window
Searching for synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Running batch commands
Creating a process with a hidden window
Launching cmd.exe command interpreter
Launching a process
Creating a process from a recently created file
Searching for the window
Setting a keyboard event handler
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fingerprint infostealer keylogger metastealer modiloader remcos stealer
Link:
https://www.filescan.io/uploads/6623faab54bafb7d21d579be/reports/d0654ec2-470d-40eb-bbd1-bad587cdad06/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/49a98a42ff6fff1b7dae074cb3c325ba9df2183dceb69feae6c0e7322ac94eb2
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:
Dbatloader
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ed37d165-5a29-46cd-a32b-00f1a1a94cb1
Result
Threat name:
Remcos, DBatLoader
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1429091
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
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
Detected Remcos RAT
Drops PE files with a suspicious file extension
Found malware configuration
Installs a global keyboard hook
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Sigma detected: Execution from Suspicious Folder
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Remcos
Sigma detected: Suspicious Program Location with Network Connections
Snort IDS alert for network traffic
Uses dynamic DNS services
Yara detected DBatLoader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1429091 Sample: pSfqOmM1DG.exe Startdate: 20/04/2024 Architecture: WINDOWS Score: 100 41 nessn.duckdns.org 2->41 43 dual-spov-0006.spov-msedge.net 2->43 45 6 other IPs or domains 2->45 55 Snort IDS alert for network traffic 2->55 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 63 13 other signatures 2->63 8 pSfqOmM1DG.exe 4 22 2->8         started        13 Gophjwfk.PIF 2->13         started        15 Gophjwfk.PIF 2->15         started        signatures3 61 Uses dynamic DNS services 41->61 process4 dnsIp5 47 dual-spov-0006.spov-msedge.net 13.107.137.11, 443, 49705, 49706 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 8->47 49 nessn.duckdns.org 45.9.168.238, 1984, 49708 GIGANET-HUGigaNetInternetServiceProviderCoHU Hungary 8->49 51 geoplugin.net 178.237.33.50, 49709, 80 ATOM86-ASATOM86NL Netherlands 8->51 33 C:\Users\Public\Libraries\netutils.dll, PE32+ 8->33 dropped 35 C:\Users\Public\Libraries\easinvoker.exe, PE32+ 8->35 dropped 37 C:\Users\Publicbehaviorgraphophjwfk.url, MS 8->37 dropped 39 C:\ProgramData\nnws\logs.dat, data 8->39 dropped 65 Detected Remcos RAT 8->65 67 Contains functionalty to change the wallpaper 8->67 69 Contains functionality to register a low level keyboard hook 8->69 79 2 other signatures 8->79 17 extrac32.exe 1 8->17         started        21 cmd.exe 3 8->21         started        71 Multi AV Scanner detection for dropped file 13->71 73 Contains functionality to bypass UAC (CMSTPLUA) 13->73 75 Contains functionality to steal Chrome passwords or cookies 13->75 77 Contains functionality to steal Firefox passwords or cookies 13->77 file6 signatures7 process8 file9 31 C:\Users\Public\Librariesbehaviorgraphophjwfk.PIF, PE32 17->31 dropped 53 Drops PE files with a suspicious file extension 17->53 23 conhost.exe 21->23         started        25 cmd.exe 1 21->25         started        27 xcopy.exe 1 21->27         started        29 4 other processes 21->29 signatures10 process11
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/49a98a42ff6fff1b7dae074cb3c325ba9df2183dceb69feae6c0e7322ac94eb2
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/49a98a42ff6fff1b7dae074cb3c325ba9df2183dceb69feae6c0e7322ac94eb2/
Threat name:
Win32.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-04-16 14:45:13 UTC
File Type:
PE (Exe)
Extracted files:
107
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jguyuqx7n77rw7noa5glhqzfxko7egb5z23j72xgydttekwjj2za._file
Verdict:
malicious
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:modiloader family:remcos botnet:remotehost persistence rat trojan
Link:
https://tria.ge/reports/240420-vzt17sdf48/
Behaviour
Enumerates system info in registry
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
ModiLoader Second Stage
ModiLoader, DBatLoader
Remcos
Malware Config
C2 Extraction:
nessn.duckdns.org:1984
Unpacked files
SH256 hash:
272f47576c2f8c669527777acbb166433a1e23ac28c85b5f32eae7577dd54078
MD5 hash:
9de19ac158dd96d3b4152929aae88b5a
SHA1 hash:
dabea907df6fe81cc71236c39e035dd26a440ce6
Link:
https://www.unpac.me/results/63d0b0c1-4481-4a70-827a-b89111292a98/
SH256 hash:
2f8c3fe85095023b50e2e381c979e0523a6c138d37aa972d19392bc15969aee6
MD5 hash:
1fb7b4f692ddbeb4f94f92ca5378d11e
SHA1 hash:
50f12e5f9cfd7465083e34375dc1b9875d3b057e
Link:
https://www.unpac.me/results/63d0b0c1-4481-4a70-827a-b89111292a98/
SH256 hash:
7bcdc2e607abc65ef93afd009c3048970d9e8d1c2a18fc571562396b13ebb301
MD5 hash:
c116d3604ceafe7057d77ff27552c215
SHA1 hash:
452b14432fb5758b46f2897aeccd89f7c82a727d
Link:
https://www.unpac.me/results/63d0b0c1-4481-4a70-827a-b89111292a98/
SH256 hash:
49a98a42ff6fff1b7dae074cb3c325ba9df2183dceb69feae6c0e7322ac94eb2
MD5 hash:
132eb916f17784af53b68c820ce41bc3
SHA1 hash:
b279456145ffd08bfa865d4e91f30e8937dedf43
Detections:
DbatLoaderStage1
Create hunting rule
Link:
https://www.unpac.me/results/63d0b0c1-4481-4a70-827a-b89111292a98/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/49a98a42ff6f/report/overview.html
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:BobSoftMiniDelphiBoBBobSoft
Create hunting rule
Author:malware-lu
Rule name:Borland
Create hunting rule
Author:malware-lu
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
Rule name:win_remcos_w0
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Create hunting rule
Author:Matthew @ Embee_Research

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
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CloseHandle
kernel32.dll::CreateThread
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryExA
kernel32.dll::LoadLibraryA
kernel32.dll::GetStartupInfoA
kernel32.dll::GetDiskFreeSpaceA
kernel32.dll::GetCommandLineA
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateFileA
kernel32.dll::FindFirstFileA
version.dll::GetFileVersionInfoSizeA
version.dll::GetFileVersionInfoA
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegOpenKeyExA
advapi32.dll::RegQueryValueExA
WIN_USER_APIPerforms GUI Actionsuser32.dll::ActivateKeyboardLayout
user32.dll::CreateMenu
user32.dll::EmptyClipboard
user32.dll::FindWindowA
user32.dll::OpenClipboard
user32.dll::PeekMessageA

Comments