MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a19f4c04fad3b4dc95575d3f3b2a4fdfd75556e2c79dd64a08d6e035ea92fda1. 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: 21


Intelligence 21 IOCs 1 YARA 24 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a19f4c04fad3b4dc95575d3f3b2a4fdfd75556e2c79dd64a08d6e035ea92fda1
SHA3-384 hash: a3e07bc2cc6db0c4b091e6c94fdcd1680697128b46c07d639c2bdaaa1ea297fa99a3223fa1a629b214e3261185cff009
SHA1 hash: 40a134e13c3eb01a6c539c3f3e17ae253790dfb8
MD5 hash: b50ed7c2d89ab63fbb1dc308fbd3513e
humanhash: earth-carolina-virginia-dakota
File name:2jd3at7ziH3ImXB.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:955'392 bytes
First seen:2025-11-23 06:50:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'737 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:LKTvyB8fd/bfpq/81Auyb59JenfZ88eqP6Yvq3oQDx9m0+eV514J5+4t2LNY+P:hBOdzfph1ebZWB8VqHLQD6eVP43Tt8P
TLSH T1A5151268221AED02D091AFB45C31E3B816745ECAED02D3039EF9FCDFFC799556A11292
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
104.37.174.84:7900

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
104.37.174.84:7900 https://threatfox.abuse.ch/ioc/1649150/

Intelligence

File Origin
# of uploads :
1
# of downloads :
123
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
_a19f4c04fad3b4dc95575d3f3b2a4fdfd75556e2c79dd64a08d6e035ea92fda1.exe
Verdict:
Malicious activity
Analysis date:
2025-11-23 06:56:12 UTC
Tags:
remcos rat
Link:
https://app.any.run/tasks/70c9cc36-1fba-4f2b-8303-fa4a5addfc63

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/40048/
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6922aec9b6ee81118d2c8882
Tags:
crypted keylog remo
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Сreating synchronization primitives
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Connection attempt
Setting a keyboard event handler
Sending a custom TCP request
Creating a file in the %temp% directory
Launching a process
Reading critical registry keys
Launching a service
Changing a file
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed vbnet
Link:
https://www.filescan.io/uploads/6922aeb8eecb08e4aa4578b5/reports/ebb23902-d5ac-4ddf-98a2-7cf7fff9218d/overview
Verdict:
Malicious
Labled as:
Lazy.Generic
Link:
https://www.hybrid-analysis.com/sample/a19f4c04fad3b4dc95575d3f3b2a4fdfd75556e2c79dd64a08d6e035ea92fda1
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-23T03:55:00Z UTC
Last seen:
2025-11-25T04:28:00Z UTC
Hits:
~100
Detections:
Backdoor.Win32.Remcos.e Backdoor.Remcos.TCP.C&C VHO:Backdoor.Win32.Convagent.gen Trojan.MSIL.Taskun.sb PDM:Trojan.Win32.Generic HEUR:Backdoor.MSIL.AsyncRat.gen Backdoor.Win32.Remcos.sb
Link:
https://opentip.kaspersky.com/a19f4c04fad3b4dc95575d3f3b2a4fdfd75556e2c79dd64a08d6e035ea92fda1/results?tab=lookup
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/1819318
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Antivirus detection for dropped file
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
Detected Remcos RAT
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Suricata IDS alerts for network traffic
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)
Unusual module load detection (module proxying)
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1819318 Sample: 2jd3at7ziH3ImXB.exe Startdate: 23/11/2025 Architecture: WINDOWS Score: 100 47 Suricata IDS alerts for network traffic 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 10 other signatures 2->53 7 2jd3at7ziH3ImXB.exe 3 2->7         started        process3 file4 25 C:\Users\user\...\2jd3at7ziH3ImXB.exe.log, ASCII 7->25 dropped 55 Contains functionality to bypass UAC (CMSTPLUA) 7->55 57 Contains functionalty to change the wallpaper 7->57 59 Contains functionality to steal Chrome passwords or cookies 7->59 61 6 other signatures 7->61 11 2jd3at7ziH3ImXB.exe 4 5 7->11         started        signatures5 process6 dnsIp7 35 104.37.174.84, 49713, 49714, 7900 MAJESTIC-HOSTING-01US United States 11->35 27 C:\Users\user\AppData\Local\Temp\TH6E11.tmp, MS-DOS 11->27 dropped 29 C:\Users\user\AppData\Local\Temp\TH6DF1.tmp, MS-DOS 11->29 dropped 31 C:\Users\user\AppData\Local\Temp\TH6DC1.tmp, MS-DOS 11->31 dropped 33 C:\ProgramData\remcos\logs.dat, data 11->33 dropped 63 Detected Remcos RAT 11->63 65 Maps a DLL or memory area into another process 11->65 67 Installs a global keyboard hook 11->67 16 RmClient.exe 1 11->16         started        19 RmClient.exe 1 11->19         started        21 RmClient.exe 11->21         started        23 RmClient.exe 14 11->23         started        file8 signatures9 process10 signatures11 37 Tries to steal Instant Messenger accounts or passwords 16->37 39 Tries to steal Mail credentials (via file / registry access) 16->39 41 Tries to harvest and steal browser information (history, passwords, etc) 19->41 43 Tries to steal Mail credentials (via file registry) 21->43 45 Unusual module load detection (module proxying) 21->45
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a19f4c04fad3b4dc95575d3f3b2a4fdfd75556e2c79dd64a08d6e035ea92fda1
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.16 Win 32 Exe x86
Link:
https://app.malva.re/file/b50ed7c2d89ab63fbb1dc308fbd3513e
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a19f4c04fad3b4dc95575d3f3b2a4fdfd75556e2c79dd64a08d6e035ea92fda1/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/a19f4c04fad3b4dc95575d3f3b2a4fdfd75556e2c79dd64a08d6e035ea92fda1
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2025-11-23 06:50:28 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
17 of 24 (70.83%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ugpuybh22o2nzfkxlu7twksp37lvkvxcy6o5msqi23qdl2us7wqq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
nirsoft
Create hunting rule
admintool_mailpassview
Create hunting rule
unc_loader_078
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection discovery rat
Link:
https://tria.ge/reports/251123-hl63dswjel/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Detected Nirsoft tools
NirSoft MailPassView
Remcos
Remcos family
Malware Config
C2 Extraction:
104.37.174.84:7900
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/68b57292-37f6-42d0-878a-04e9ab36fd0a
Unpacked files
SH256 hash:
a19f4c04fad3b4dc95575d3f3b2a4fdfd75556e2c79dd64a08d6e035ea92fda1
MD5 hash:
b50ed7c2d89ab63fbb1dc308fbd3513e
SHA1 hash:
40a134e13c3eb01a6c539c3f3e17ae253790dfb8
Link:
https://www.unpac.me/results/fc43b44c-6dd7-4136-839a-387ddeaa3f5b/
SH256 hash:
fbf310c834fdbe668623c02ca82d662c22af21a2145ebe0377032ea65d8f89f7
MD5 hash:
209795f0e06f3c7d63308bb0963c382d
SHA1 hash:
6638def49a001b337857ba48ee34821175156d2d
Detections:
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
Remcos
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/fc43b44c-6dd7-4136-839a-387ddeaa3f5b/
SH256 hash:
1e8237ed928b199c0d09a4152e13c476746a4c247a6b64dd91751a0648ee6d1d
MD5 hash:
e10c6808d748b54172d53078c530a31e
SHA1 hash:
6520795793cdd3b1247e6c54ecf9a5c9e614f9fb
Link:
https://www.unpac.me/results/fc43b44c-6dd7-4136-839a-387ddeaa3f5b/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a19f4c04fad3/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/a19f4c04fad3b4dc95575d3f3b2a4fdfd75556e2c79dd64a08d6e035ea92fda1

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
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_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:pe_imphash
Create hunting rule
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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
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.

Cape
Cape
https://www.capesandbox.com/analysis/40048/

Comments