MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0457238a704b592bad784308dbd77cf65c8afc028488e2a27e8e66433de2a053. 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: 19


Intelligence 19 IOCs YARA 28 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0457238a704b592bad784308dbd77cf65c8afc028488e2a27e8e66433de2a053
SHA3-384 hash: e4da4bda72e3ed42af537be6529f2b75b86a3440067dd5e5c5823ebc4cda9e1199435264a7fd820fc2228a510ee034c9
SHA1 hash: 74746d9d0564a6eaef84f57459dc26d4cb0f6a9a
MD5 hash: 7151fae494f390d195e273d6ec59081f
humanhash: princess-blue-indigo-wolfram
File name:1747675324b7c983760330e601d3b2ce2351883f0b6c6acbc4bcaaf730d9a4daf9cff41ef5307.dat-decoded
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:493'568 bytes
First seen:2025-05-19 17:22:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e77512f955eaf60ccff45e02d69234de (139 x RemcosRAT)
ssdeep 12288:d13ak/mBXTG4/1v08KI7ZnMEF76JqmsvZQCS:3ak/mBXTV/R0nEF76gFZd
TLSH T1C9A4BF01BAD2C072D57654300C3AE775DEBDBD212839897BB3D61D97FD30190A63AAB2
TrID 32.2% (.EXE) Win64 Executable (generic) (10522/11/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4504/4/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
dhash icon c4d48eaa8ad4d4f8 (1'000 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter abuse_ch
Tags:base64-decoded exe RemcosRAT


Avatar
abuse_ch
Malware dropped as base64 encoded payload

Intelligence

File Origin
# of uploads :
1
# of downloads :
538
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
1747675324b7c983760330e601d3b2ce2351883f0b6c6acbc4bcaaf730d9a4daf9cff41ef5307.dat-decoded
Verdict:
Malicious activity
Analysis date:
2025-05-19 17:28:02 UTC
Tags:
rat remcos remote stealer mpress
Link:
https://app.any.run/tasks/1b2f06d4-8f7a-4156-9f7e-149154e33b3f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Trojan.Remcos-9841897-0
Create hunting rule

Win.Trojan.Remcos-10002580-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=682b693fe5aa44ec2e1afd1d
Tags:
dropper remcos packed sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Creating a file in the %temp% subdirectories
Unauthorized injection to a recently created process
Restart of the analyzed sample
Reading critical registry keys
Creating a file
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd config-extracted crypto evasive exploit explorer fingerprint fingerprint keylogger lolbin microsoft_visual_cc packed rat rat remcos remcos windows
Link:
https://www.filescan.io/uploads/682b690dc609634bd7c98bf1/reports/c3ed470e-0d66-480a-866f-be0f0d91e2a4/overview
Verdict:
Malicious
Labled as:
Remcos.Generic
Link:
https://www.hybrid-analysis.com/sample/0457238a704b592bad784308dbd77cf65c8afc028488e2a27e8e66433de2a053
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fb0f236f-02cd-410c-aca6-48cac42d04a5
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1694192
Signature
Antivirus / Scanner detection for submitted sample
Attempt to bypass Chrome Application-Bound Encryption
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
Contains functionality to register a low level keyboard hook
Contains functionalty to change the wallpaper
Delayed program exit found
Detected Remcos RAT
Detected unpacking (changes PE section rights)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Suricata IDS alerts for network traffic
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)
Uses dynamic DNS services
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1694192 Sample: 1747675324b7c983760330e601d... Startdate: 19/05/2025 Architecture: WINDOWS Score: 100 38 mrspaulamagret.duckdns.org 2->38 40 geoplugin.net 2->40 62 Suricata IDS alerts for network traffic 2->62 64 Found malware configuration 2->64 66 Malicious sample detected (through community Yara rule) 2->66 70 8 other signatures 2->70 8 1747675324b7c983760330e601d3b2ce2351883f0b6c6acbc4bcaaf730d9a4daf9cff41ef5307.dat-decoded.exe 4 26 2->8         started        12 msedge.exe 17 135 2->12         started        signatures3 68 Uses dynamic DNS services 38->68 process4 dnsIp5 48 mrspaulamagret.duckdns.org 91.193.7.170, 14646, 49683, 49684 V4ESCROW-ASRO Romania 8->48 50 geoplugin.net 178.237.33.50, 49686, 80 ATOM86-ASATOM86NL Netherlands 8->50 52 127.0.0.1 unknown unknown 8->52 72 Contains functionality to bypass UAC (CMSTPLUA) 8->72 74 Detected unpacking (changes PE section rights) 8->74 76 Detected Remcos RAT 8->76 78 7 other signatures 8->78 14 1747675324b7c983760330e601d3b2ce2351883f0b6c6acbc4bcaaf730d9a4daf9cff41ef5307.dat-decoded.exe 1 8->14         started        17 1747675324b7c983760330e601d3b2ce2351883f0b6c6acbc4bcaaf730d9a4daf9cff41ef5307.dat-decoded.exe 1 8->17         started        19 1747675324b7c983760330e601d3b2ce2351883f0b6c6acbc4bcaaf730d9a4daf9cff41ef5307.dat-decoded.exe 2 8->19         started        29 2 other processes 8->29 54 239.255.255.250 unknown Reserved 12->54 21 msedge.exe 12->21         started        25 msedge.exe 12->25         started        27 msedge.exe 12->27         started        signatures6 process7 dnsIp8 80 Tries to steal Instant Messenger accounts or passwords 14->80 82 Tries to harvest and steal browser information (history, passwords, etc) 14->82 84 Tries to steal Mail credentials (via file / registry access) 17->84 42 s-part-0041.t-0009.t-msedge.net 13.107.246.69, 443, 49724, 49751 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 21->42 44 ax-0003.ax-msedge.net 150.171.27.12, 443, 49745 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 21->44 46 24 other IPs or domains 21->46 36 C:\Users\user\AppData\Local\...\Cookies, SQLite 21->36 dropped 31 chrome.exe 29->31         started        34 msedge.exe 29->34         started        file9 signatures10 process11 dnsIp12 56 googlehosted.l.googleusercontent.com 142.250.68.65, 443, 49707, 49708 GOOGLEUS United States 31->56 58 www.google.com 172.217.12.132, 443, 49701, 49704 GOOGLEUS United States 31->58 60 clients2.googleusercontent.com 31->60
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/0457238a704b592bad784308dbd77cf65c8afc028488e2a27e8e66433de2a053
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/0457238a704b592bad784308dbd77cf65c8afc028488e2a27e8e66433de2a053/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-05-19 17:23:28 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=arlshctqjnmsxllyimenxv346zoiv7acqseofit6rztegppcubjq._file
Verdict:
malicious
Label(s):
nirsoft
Create hunting rule
admintool_mailpassview
Create hunting rule
remcos
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:basil2024 collection credential_access discovery spyware stealer
Link:
https://tria.ge/reports/250519-vyaaea1qw8/
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Drops file in Windows directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Reads user/profile data of web browsers
Uses browser remote debugging
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Malware Config
C2 Extraction:
mrspaulamagret.duckdns.org:14646
Verdict:
Malicious
Tags:
rat remcos Win.Trojan.Remcos-9841897-0
YARA:
malware_windows_remcos_rat REMCOS_RAT_variants Remcos_Payload win_remcos_rat_unpacked Windows_Trojan_Remcos_b296e965 MAL_EXE_Remcos_RAT_Jul_22 Remcos
Link:
https://app.threat.zone/submission/201aee3b-f28f-4dd2-955f-450245f15d1d
Unpacked files
SH256 hash:
0457238a704b592bad784308dbd77cf65c8afc028488e2a27e8e66433de2a053
MD5 hash:
7151fae494f390d195e273d6ec59081f
SHA1 hash:
74746d9d0564a6eaef84f57459dc26d4cb0f6a9a
Detections:
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
Remcos
Create hunting rule
Link:
https://www.unpac.me/results/d6c844c4-cf91-4717-95da-1dce12c0d821/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0457238a704b/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/0457238a704b592bad784308dbd77cf65c8afc028488e2a27e8e66433de2a053

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_EXE_Packed_MPress
Create hunting rule
Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:nirsoft_v1
Create hunting rule
Author:RandomMalware
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Remcos_unpacked_PulseIntel
Create hunting rule
Author:PulseIntel
Description:Remcos Payload
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:TeslaCryptPackedMalware
Create hunting rule
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_rat_unpacked
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
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.

b7c983760330e601d3b2ce2351883f0b6c6acbc4bcaaf730d9a4daf9cff41ef5

RemcosRAT

Executable exe 0457238a704b592bad784308dbd77cf65c8afc028488e2a27e8e66433de2a053

(this sample)

  
Dropped by
SHA256 b7c983760330e601d3b2ce2351883f0b6c6acbc4bcaaf730d9a4daf9cff41ef5
  
Dropped by
MD5 f3f461b930ad2caa6ca4dd83d6cb0305
  
URLhaus
https://urlhaus.abuse.ch/url/3547331/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3547370/

Comments