MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aad2763bc741b46616ba3bb283b7a5a513219a57b19f323d45aa5f9bc7557c52. 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 21 File information Comments

SHA256 hash: aad2763bc741b46616ba3bb283b7a5a513219a57b19f323d45aa5f9bc7557c52
SHA3-384 hash: 1e4e4a4a712c0d23fc928853ba0fd9d764ca4345bca4a6a046fec3af3e262c8548a5acee83cec4c62cdd2d4a915a85de
SHA1 hash: f65c4705338715b174163e16d7e6022931f928cc
MD5 hash: bb82c9dd407b34360ac77c8f6d676de8
humanhash: idaho-bakerloo-thirteen-nebraska
File name:x.exe
Download: download sample
Signature RemcosRAT
File size:2'091'008 bytes
First seen:2024-01-30 18:12:43 UTC
Last seen:2024-01-30 20:35:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b849c32c8477f283a2e1a1b6798d89b5 (5 x RemcosRAT, 2 x DBatLoader)
ssdeep 49152:pqAodhXjnxf2hd7c7mvrq0gOP4aF5P0R:pqAo2hd7Ymu0gOJuR
TLSH T10AA5DF22A6D04432F132A5795B977AE5E92DBD202C257D9537E43D08BF333407F286AB
TrID 30.5% (.SCR) Windows screen saver (13097/50/3)
24.5% (.EXE) Win64 Executable (generic) (10523/12/4)
15.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.5% (.EXE) Win32 Executable (generic) (4505/5/1)
4.8% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon e0c4a2a6a4bcbcf8 (12 x RemcosRAT, 6 x DBatLoader, 4 x Formbook)
Reporter e24111111111111
Tags:DBatLoader exe RemcosRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
405
Origin country :
GR GR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ad61d0582ca1db7eb528c8201f1a0a62c5e5ad9c20a51794e6d1d191dbbf2b4e.unknown.bat
Verdict:
Malicious activity
Analysis date:
2024-01-30 17:58:01 UTC
Tags:
dbatloader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
fingerprint hook keylogger lolbin packed 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.
Result
Threat name:
DBatLoader, Remcos
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
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
Drops PE files with a suspicious file extension
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample is not signed and drops a device driver
Sigma detected: Execution from Suspicious Folder
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Suspicious Creation with Colorcpl
Sigma detected: Suspicious Process Patterns NTDS.DIT Exfil
Sigma detected: Suspicious Program Location with Network Connections
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected DBatLoader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1383518 Sample: x.exe Startdate: 30/01/2024 Architecture: WINDOWS Score: 100 45 mfreshbnrem.ddns.net 2->45 47 dual-spov-0006.spov-msedge.net 2->47 49 6 other IPs or domains 2->49 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 Antivirus detection for URL or domain 2->61 65 13 other signatures 2->65 9 x.exe 1 8 2->9         started        14 Ikyjznkw.PIF 2->14         started        16 Ikyjznkw.PIF 2->16         started        signatures3 63 Uses dynamic DNS services 45->63 process4 dnsIp5 55 dual-spov-0006.spov-msedge.net 13.107.139.11, 443, 49704, 49705 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 9->55 37 C:\Users\Public\Libraries\truesight.sys, PE32+ 9->37 dropped 39 C:\Users\Public\Libraries\netutils.dll, PE32+ 9->39 dropped 41 C:\Users\Public\Libraries\easinvoker.exe, PE32+ 9->41 dropped 43 2 other malicious files 9->43 dropped 79 Drops PE files with a suspicious file extension 9->79 81 Writes to foreign memory regions 9->81 83 Allocates memory in foreign processes 9->83 85 Sample is not signed and drops a device driver 9->85 18 colorcpl.exe 5 16 9->18         started        23 cmd.exe 1 9->23         started        87 Multi AV Scanner detection for dropped file 14->87 89 Injects a PE file into a foreign processes 14->89 25 SndVol.exe 14->25         started        27 colorcpl.exe 16->27         started        file6 signatures7 process8 dnsIp9 51 mfreshbnrem.ddns.net 192.177.111.126, 2404, 49707 EGIHOSTINGUS United States 18->51 53 geoplugin.net 178.237.33.50, 49708, 80 ATOM86-ASATOM86NL Netherlands 18->53 35 C:\ProgramData\FTYGFTGF\logs.dat, data 18->35 dropped 67 Contains functionality to bypass UAC (CMSTPLUA) 18->67 69 Contains functionalty to change the wallpaper 18->69 71 Contains functionality to steal Chrome passwords or cookies 18->71 73 Contains functionality to register a low level keyboard hook 18->73 29 cmd.exe 2 23->29         started        31 conhost.exe 23->31         started        75 Contains functionality to steal Firefox passwords or cookies 25->75 77 Delayed program exit found 25->77 file10 signatures11 process12 process13 33 conhost.exe 29->33         started       
Threat name:
Win32.Trojan.Remcos
Status:
Malicious
First seen:
2024-01-30 17:40:08 UTC
File Type:
PE (Exe)
Extracted files:
45
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:modiloader family:remcos botnet:remotehost persistence rat trojan
Behaviour
Enumerates system info in registry
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
Launches sc.exe
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Creates new service(s)
ModiLoader Second Stage
ModiLoader, DBatLoader
Remcos
Malware Config
C2 Extraction:
mfreshbnrem.ddns.net:2404
wwmfreshbnrem.ddns.net:2404
2wwmfreshbnrem.ddns.net:2404
32wwmfreshbnrem.ddns.net:2404
Unpacked files
SH256 hash:
c31ef0684ba282b2771e4f43da1c0ca89957677f7b56ccd74e0511bc48181241
MD5 hash:
2a6c03742debbfd01501f9dfa45475d3
SHA1 hash:
f796351a8778914c51413885b31ba90be8e95637
SH256 hash:
843525f1c5bde65abc0cc9e236b279b5b0b005f7a2d72c5f6fb7e18c00d5d7be
MD5 hash:
14deb9b7b135103f0ac5a7ff2b364fe0
SHA1 hash:
013ea0aa56158fe19e4a9d5ea01457e343a82087
SH256 hash:
aad2763bc741b46616ba3bb283b7a5a513219a57b19f323d45aa5f9bc7557c52
MD5 hash:
bb82c9dd407b34360ac77c8f6d676de8
SHA1 hash:
f65c4705338715b174163e16d7e6022931f928cc
Detections:
DbatLoaderStage1
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
Author:malware-lu
Rule name:Borland
Author:malware-lu
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:iexplorer_remcos
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:Remcos
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:ThreadControl__Context
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Trojan_Remcos_b296e965
Author:Elastic Security
Rule name:win_remcos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
Rule name:win_remcos_w0
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Author:Matthew @ Embee_Research

File information


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

Comments